Services
We don’t believe in one-size-fits-all systems. Every home is different, and every customer has their own goals - whether it is cutting bills, lowering carbon, or building something future-proof from the ground up. At GreenR Renewables, we take the time to design and install systems that truly fit. Everything we offer is built around real-world performance, thoughtful engineering, and long-term peace of mind.
Here’s what we can help with:

Quiet, reliable warmth even on frosty mornings. Our heat pump systems are tailored to your home and lifestyle. This means precision sizing, quality workmanship, and heat that just feels right without relying on fossil fuels.
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What is Included in Our Heat Pump Service
Our service is more than just fitting a box on the wall. Here is what you can expect when you work with us:
- A full property assessment and detailed heat loss calculation
- A system carefully sized and designed for your home
- Advice on air source vs ground source, hybrid options, and layout planning
- Coordination with your builder or architect if you are mid-renovation or building new
- Compatibility checks with existing radiators or underfloor heating
- Trusted equipment from top manufacturers such as Vaillant, using inverter technology
- Installation by an experienced, local MCS-certified installer
- Support accessing Boiler Upgrade Scheme (BUS) grants
- System tuning using heating curves for maximum comfort and efficiency
We are always learning — from ongoing CPD to real-world data. That means your system benefits from the latest thinking in low-temperature heating, controls, and performance design.
Heat Geek Verified
"Just had an air source heat pump and hot water cylinder fitted by GreenR Renewables. The team have been great from start to finish.
We sought out GreenR due to their heat geek certification after having several quotes from companies who didn't really seem to be clued up on fitting heat pumps.Having a fair ammount of knowledge of ASHP ourselves GreenR were the only guys who really seemed to have a comprehensive grasp of the technology.
The process was smooth from start to finish - great communication and attended on the days/times promised for quotes, survey and works.
The guys were very respectful, clean and tidy when coming in and out of our home. Disruption to electric/water access were minimal. They have done a really tidy job and systems are all up and running efficiently.GreenR were thorough with handover and are contactable if further support is needed.
We would not hesitate to recommend GreenR renewables."
Jamie
Tailored for Your Needs
Want a Heating System That Reflects Your Values?
You are ready to live more sustainably, and you want a heating system that aligns with your values. Our renewable heating systems reduce your carbon footprint and energy bills, without sacrificing comfort. You’ll enjoy smart thermostat control, minimal maintenance, and a warm home you can feel good about.
Looking for Comfort Without Complication?
Comfort, reliability, and simplicity matter. Our heat pumps are easy to use, quiet, and dependable, giving you warmth and peace of mind without the worry of high energy bills. We take the time to explain things clearly and treat your home with care, from start to finish.
Want the Heating to Match the Ambition of Your Build?
You’ve put time and energy into your home — we’ll make sure the heating lives up to it. From monobloc vs split system advice to COP and SPF optimisation, we design flexible, high-performance systems that integrate seamlessly with solar panels, EV charging, and smart tech.
Need an Engineer Who Understands Design?
We bring technical fluency and aesthetic sensitivity. Whether it is zoning, buffer tanks, or duct-free layouts, we work with your plans, not against them, to create discreet, powerful systems that meet SAP, EPC, and design standards.
Tired of Heat Pump Contractors Who Cut Corners?
Need a partner you can trust to deliver across multiple plots in Cornwall? We are reliable, responsive, and aligned with your goals - helping you meet regulations, satisfy clients, and reduce aftercare costs through thoughtful, scalable heat pump design.
Our Proven Design and Installation Process
Lets Talk
We will visit your property, learn about your goals, and carry out a proper heat loss calculation.
Thoughtful Design
Every system is tailored. We will size the heat pump correctly, plan your layout, and ensure compatibility with your home.
Smooth Planning
Working with your builder? No problem. We coordinate with other trades to keep everything running smoothly.
Installation with Care
Our team installs with precision, whether it is an ASHP, GSHP, or hybrid system, and we keep things tidy as we go.
Support That Sticks Around
Once it is up and running, we’ll show you how it all works and stay in touch for fine-tuning, maintenance, and advice.
This isn’t just about technology, it is about making your home better.
Heat Pump Testimonials
"Cai and his colleagues completely overhauled my Air Source Heat Pump over a year ago - this was a much needed exercise to sort out a system, and associated equipment, that had been inappropriately installed at the outset by others.
Highly proficient, and technically able, they have just serviced my system; polite and tidy, the customer is advised, in layman's terms, exactly what is required and what has been undertaken. GreenR Renewables are a technically proficient, administratively able, and motivated company - in short they are thoroughly professional and, could not recommend them more highly."
Mark
Heat Pump Maintenance & Servicing
Your heat pump works hard behind the scenes, but without regular care, performance can slip. We provide expert air source heat pump maintenance and annual heat pump servicing to keep things efficient, reliable, and long-lasting.
Whether you are due a routine air source heat pump service or dealing with an issue, our engineers are on hand to help. We handle everything from control tuning to full heat pump repairs, and if you are looking for a trusted heat pump service, we cover homes across Cornwall. With proper heat pump maintenance, you’ll enjoy lower bills, better comfort, and peace of mind through the seasons.
Click to see our servicing and maintenance options
- Heat Pump FAQs
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Can I get help paying for a heat pump?
Yes. We'll guide you through the Boiler Upgrade Scheme (BUS), which can give you up to £7,500 towards the cost of your installation. We handle the application with you, making it simple and stress-free.
Will a heat pump actually keep my home warm in winter?Definitely. When designed and installed properly, a heat pump will keep your home toasty even on the coldest days.
We take care to size your system perfectly, so you stay warm without wasting energy.
Are air source heat pumps worth it?Absolutely. A well-designed heat pump delivers year-round comfort, lower energy bills, and long-term reliability.
You’ll reduce your carbon footprint and, over time, many systems pay for themselves through energy savings and reduced maintenance costs, especially when combined with available grants.
What is a typical heat pump installation cost?Costs vary depending on your home. With the Boiler Upgrade Scheme offering up to £7,500 off, the upfront cost becomes much more manageable. And thanks to lower running costs, many homeowners find their heat pump pays for itself within 7–10 years, sometimes even sooner when paired with Solar PV.
Is it noisy?Not at all. Modern heat pumps are impressively quiet. We also carefully position the outdoor unit to make sure it won’t disturb you or your neighbours.
Can I keep my existing radiators?In many cases, yes. If any upgrades are needed, we’ll guide you through smart, cost-effective options to ensure your home stays warm and your system runs efficiently. Heat pumps also pair excellently with underfloor heating, which you may wish to consider in the future.
How long does installation take?Most installations take between 3 to 7 days, depending on the size and complexity of your system. We’ll give you a clear schedule upfront — and stick to it.
What happens after the installation?We don’t disappear once the job’s done. From helping you get the most out of your smart controls to offering ongoing support and servicing, we’re always here when you need us.
Ready for a Warmer, GreenR Future?
At GreenR Renewables, we don’t cut corners. We care about how your system looks, how it performs, and how you feel once it is up and running. That’s why homeowners, renovators, and architects across Cornwall trust us with their heating.Get in touch for a quote - or try our handy Quoting Tool
Book a free heat pump consultation today. We’ll give you the facts and walk you through the options. No pressure. Just honest advice and a system design tailored to your home.
Switching to a heat pump isn’t just about new technology, it is about a more comfortable, efficient, and future-ready home.

Turn your rooftop into your own clean energy supply. We design solar systems that make sense for your roof, your power use, and your long-term goals. No copy-paste installs-just smart, tidy, efficient systems that help you take control of your bills.
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What’s Included in Your Solar Panel Installation
Every property is different, so we take time to understand yours. Whether you're planning a self-build, retrofitting an older home, or running a business that wants to cut costs, our solar energy solutions are built around you.
Here’s what you’ll get:
Free, Friendly Consultation
We’ll visit, chat through your goals, and check your property’s potential.
Custom System Design
You’ll get a tailored design using efficient, high-quality PV modules, perfectly matched to your roof and needs.
Trusted Technology
We install solar inverters, hybrid inverters, and smart energy devices from names you can trust - like SolarEdge, Tesla, and MyEnergi.
Professional Installation
Our own team of experienced engineers handle every step with pride and care. No outsourcing. No mess, no stress.
Smart Integration
Add extras like EV chargers, solar battery storage, or even connect with heat pumps for full-home sustainability. We can help you take advantage of dynamic energy tariffs so your system charges batteries, heats water, or runs appliances when rates are cheapest.
Simple Monitoring
We’ll show you how to track your system through a handy app or dashboard, so you can see exactly what you’re saving.
Ongoing Support
We are based locally, and always here if you need help later on. We don’t just fit and run.
Whether you’re after a grid-tied solar setup to reduce bills or a more independent off-grid solar panel system, we’ll find the right fit for your property and lifestyle.
Our Process – Honest, Straightforward, and Personal
Getting to Know You
It starts with a conversation. We’ll listen to what you want to achieve - lower bills, greater independence, a net zero home and assess your roof, electrics, and current usage.
Designing Your System
We design a system that suits your goals and your space. You’ll see clear projections of how much power you’ll generate, your estimated solar ROI, and how long your payback period could be.
Expert Installation
Installation usually takes 1–3 days. We will agree a date that works for you, keep disruption to a minimum, and leave everything neat and tidy when we are done.
Getting You Set Up
We’ll talk you through your system and how to use your app or monitor. If you're exporting power back to the grid, we’ll help set up your Smart Export Guarantee (SEG) too.
Here When You Need Us
This isn’t a one-and-done service. We are here for advice, support, or upgrades if your needs change down the line, including future solar plus storage or EV charger integration.
Find the Right Solar PV System
"The guys from GreenR Renewables did a fantastic job fitting our solar panels. They were quick, efficient and professional. Richard's expertise and advice really helped us decide on the right system to install. Highly recommended!
Peter, Liftondown
"GreenR Renewables did an excellent job of installing our solar panels at The Pearl Exchange building. They were exceptionally helpful in advising us through the whole process. They were great to work with; friendly and professional throughout and also very clean, tidy and timely."
Meg, The Pearl Exchange
Do Solar Panels Need Maintenance?
Even the best solar panels need a little attention now and then. We offer professional solar panel cleaning and full solar panel maintenance to help you get the most from your system, year after year.
Our qualified solar panel engineers check electrical connections, inverter performance, and panel condition, and safely remove dirt or shading that might be reducing output. Whether it is part of an annual check-up or a one-off clean, a little upkeep can go a long way in protecting your solar investment.
Click to see our servicing and maintenance options
- Solar Panel FAQs
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Will solar panels work in Winter?
Yes — even on overcast days, panels still generate electricity. Winter output is lower, but you’ll keep seeing benefits all year.
Can I add a battery later?Definitely. Most systems we install are designed with solar battery storage in mind, so adding it later is simple.
What kind of warranties are included?Panels typically come with 20–25-year performance warranties, and solar inverters are usually covered for 10–12 years. We back our workmanship too.
Can solar help heat water?Yes — using a device like MyEnergi Eddi, you can send extra energy to your immersion tank, helping with hot water or even boosting your renewable heating system.
Will I need planning permission?In most cases, no. Planning permission for solar panels isn’t usually required, but we’ll check and let you know if anything needs approval.
Investing in solar PV in Cornwall isn’t just about saving money; it is about taking a step towards a cleaner, more independent future.
At GreenR Renewables, we take that seriously. We don’t believe in pushy sales or rushed jobs. We believe in doing it once, doing it properly, and making sure it fits your life, your home, and your future.
Get in touch for a free consultation and discover how solar could transform your energy use. You will enjoy more comfort, more control, and a system that works as hard as you do, for decades to come.

Clean filtered air. Warmth you don’t waste. Mechanical ventilation with heat recovery (MVHR) gives you fresh indoor air without the usual heat loss. Ideal for energy-efficient homes where comfort and air quality go hand-in-hand.
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What is Included in Our MVHR Installation Service?
Every home is different, so we never offer “one-size-fits-all” solutions. We design, supply, and install MVHR systems across Cornwall, and everything we do is tailored to you.
Tailored Consultation
Book a free consultation. We’ll chat about your needs, assess your property, and provide early advice.
We listen to your goals — whether comfort, energy savings, or long-term health.
We assess your property (on-site or via plans) for feasibility and performance.
Heat Loss Calculations & System Design
We will carry out a detailed survey (or work from your architect’s plans) to model airflow and heat loss.
We conduct detailed heat loss and airflow calculations to optimise sizing.
A custom-designed ducted ventilation layout to balance airflow and reduce pressure loss.
We integrate the MVHR with your heat pump or renewable systems.
Expert Engineer Installation
Our trained, in-house team installs with care and precision
Installation of the air handling unit (AHU), ductwork, and terminals
Neat, discreet ducting and unit placement with minimal disruption.
Respectful, tidy installers who treat your home with care.
Commissioning & Aftercare
We fully test, balance, and demonstrate your system, leaving you confident in its quiet, efficient operation.
Ventilation system commissioning to balance and fine-tune performance.
You will receive a handover pack, including simple user instructions and maintenance guidance.
Advice on filter changes and long-term care.
Every installation is backed by solid engineering, local knowledge, and genuine care for doing things right.
The Benefits of MVHR Installation in Cornwall
If you have invested in making your home more airtight or energy-efficient, a modern home ventilation system like MVHR could be the missing piece of the puzzle.
More Than Just Ventilation
- Lower Energy Bills - Retaining heat means your heat pump works up to 33% less — a real difference over time.
- Cleaner, Healthier Air - Filtered air reduces dust, allergens, and pollutants — ideal for families and asthma sufferers.
- Less Damp, More Comfort - Continuous airflow controls moisture and reduces condensation, protecting your home and wellbeing.
- Quieter, Fresher Homes - No need to open windows or endure draughts — just gentle, balanced ventilation.
- Future-Proof Living - MVHR is a smart investment that supports Passive House, SAP ratings, and low-carbon goals.
MVHR System Servicing & Maintenance
Your MVHR system quietly keeps your home fresh and comfortable, but it also needs regular attention to stay efficient.
We offer complete MVHR servicing, including airflow balancing, filter changes, fan diagnostics, and heat exchanger checks. If your system is noisy, underperforming, or just overdue for a service, we are here to help. Proper MVHR system maintenance not only improves indoor air quality but also supports energy efficiency across your whole home.
Click to see our servicing and maintenance options
- MVHR in Cornwall – FAQs
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Is MVHR only suitable for new builds?
No - we regularly retrofit systems into older homes and renovations. We’ll advise on the best options for your layout and budget, giving you honest guidance.
Will I notice the system running?A well-installed system should be whisper-quiet. We balance airflow, size components correctly, and use smart ducting to minimise sound.
Will it make my home feel draughty?Not at all. A good mechanical heat recovery system supplies air gently and evenly — no cold spots, just constant comfort.
Do I still need extractor fans or window vents?No — MVHR replaces them with a more efficient, controlled approach.
How much maintenance is involved?Not much. You’ll need to change filters once or twice a year (we’ll show you how), and we’re always here to help with a sensible MVHR servicing schedule.
Can it work with my heat pump and solar panels?Perfectly. In fact, MVHR helps maximise your renewable investment by reducing heat loss and enhancing system efficiency.
Does it actually save money?Yes, especially when paired with a heat pump or solar system. It reduces heating demand by recovering warmth that would otherwise be lost and helps keep your energy bills low.
A More Comfortable, Sustainable Home Starts Here
Installing MVHR isn’t just about better ventilation - it is about building a healthier, more energy-smart home for the future. Whether you are in a coastal cottage or a cutting-edge eco build, we will help you design a system that works quietly, efficiently, and beautifully behind the scenes.
Breathe easier. Live smarter. Let’s design a better home together.
Ready to explore MVHR installation in Cornwall?
Book your free consultation today and discover how clean air and energy savings can go hand-in-hand.

Save the sunshine for when it matters. With a home battery system, you can store excess solar energy to use at night or during peak-rate hours. Whatever your set up we'll make sure it works seamlessly with your lifestyle, and keeps you covered, even in a power cut.
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Why Home Battery Storage Makes Sense in Cornwall
Your solar panels work hardest during the day. But most of us need power in the mornings and evenings, when the sun’s not shining. That is where home batteries come in.
Home battery storage lets you store excess energy - whether from the sun or off-peak grid electricity - so you can use it when it suits you, not when it is generated. Whether you want to protect yourself from rising prices, power cuts, or just feel more in control, a battery puts the power back in your hands.
In Cornwall, where grid reliability can vary and many homes are in rural spots, having your own home energy storage makes sense.
Common Challenges We Help Solve
- Solar energy going to waste when you’re out during the day
- Higher electricity bills in the evenings and mornings
- Vulnerability to power cuts, especially in rural areas
- Difficulty using agile or time-of-use tariffs effectively
- Growing energy demands from EVs or heat pumps
Whether you want fast charging during sunny spells or prefer to trickle charge overnight at a lower rate, we’ll configure your system to work seamlessly around your needs, using smart technology to manage things like charge cycles (how often your battery charges and discharges), state of charge (how full your battery is), and charging voltage (electrical pressure applied to a battery to push energy into it during charging), in the background.
What’s Included in Our Home Battery Storage Service?
We don’t do one-size-fits-all systems. Every setup we install is designed around you - your home, your solar setup, your energy use, and your future plans.
Here is what you can expect:
- A custom-designed battery system sized to your usage and goals
- Reliable, efficient lithium-ion batteries from brands like Tesla or SolarEdge
- Integration with your existing solar PV system or a new installation
- Smart controls and mobile apps so you can monitor charging time, energy use, and battery efficiency
- Backup options to keep essentials running during power cuts
- Professional installation - neat, precise, and with real attention to detail
- Ongoing support - we are a local team, not a national company
We also take care of important technical elements like selecting the right charge controller, ensuring safe power output, and protecting your system with built-in overcharging protection.
Our Process — Simple, Supportive, and Straightforward
We know adding a battery system to your home is a big step. That’s why we make the journey as smooth and reassuring as possible.
Let’s Talk
We’ll have a relaxed conversation about your energy setup, what’s working, what’s not, and where you’d like to be.
Smart Design
We design a system that fits you, including the right battery capacity, charger type (AC or DC), and how it’ll integrate with your solar and other tech (like your EV charger or heat pump).
Clear Quotation
No pushy sales - just transparent, honest pricing that explains exactly what you're getting and why.
Skilled Installation
Our in-house engineers fit your system carefully and respectfully - typically in a day or two, with minimal disruption
Handover & Ongoing Support
We show you how everything works, from the app to the backup features. And if you ever need help, we are right here in Cornwall.
Solar Battery Storage Servicing
Batteries are the heart of any energy-smart home, and like any system, they benefit from regular check-ups.
We provide comprehensive solar battery storage servicing - covering charge/discharge behaviour, firmware updates, safety checks, and system efficiency reviews. Whether you are using batteries to go partly off-grid or just want to get the best return from your solar setup, our team can make sure your storage is doing its job safely and effectively.
Click to see our servicing and maintenance options
- Home Battery Storage FAQs
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Do I need solar panels to get a battery?
Not always - we can also install a battery to charge from off-peak electricity. But combining with solar gives the best long-term value.
Can I still use power during a blackout?Yes, if we build in backup functionality. We’ll help you choose what to keep running - like your fridge, internet, or lights.
How long does it take to charge a battery?Depends on sunlight and size - some charge in a few hours (fast charging), others take longer (slow charging or trickle charge). We’ll design it around your usage.
What’s the lifespan of the battery?Most quality lithium-ion batteries last 10–15 years, and many come with warranties that reflect that.
Is maintenance needed?Very little - modern systems are low-maintenance, but we’re always here for checks, updates, or advice.
Is there any help with the cost?Yes - batteries now qualify for 0% VAT, which makes a big difference. We’ll also flag any other grants that might help.
Ready to Take Charge of Your Home Energy?
Installing a battery system in your home isn’t just about saving money; it is about gaining control. It means using your own energy, on your terms. Staying comfortable through power cuts. Getting more from your solar panels. And knowing your home is a little more future-ready. At GreenR Renewables, we are here to help you do that.
Ready to take control of your energy? Book your free consultation today and discover how smarter home battery storage and charging can power a more independent, efficient, and comfortable home - right here in Cornwall.

Charge your car at home with ease and confidence. We install reliable, future-proof EV chargers that fit around your routine – safe, smart, and professionally set up to keep you moving, helping you charge faster, smarter, and with confidence
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What You Get With Our EV Charger Installations
We fit high-quality EV chargers that are built around you - your car, your home or workplace, and your energy setup.
Here’s what is included:
- Home EV charger installation on garage walls, driveways, and outbuildings
- Commercial EV charger installation for businesses, hotels, or letting properties
- Fast, reliable chargers from 7kW single-phase to 22kW three-phase systems
- Smart EV chargers that work with off-peak tariffs and monitor your energy usage
- Tethered or untethered options, depending on whether you prefer a built-in cable or to use your own
- Fully compatible with solar, so you can charge using your own clean energy
- All work completed by OZEV-authorised electricians
- A tidy, safe, professional finish you’ll be happy to show off
We install trusted brands like Tesla. We’ll help you choose what’s best for your setup, not just what’s available.
Who We Help — And How
For Homeowners
Charging at home is one of the best perks of going electric. No waiting in a queue, no worries - just plug in overnight and you’re good to go in the morning. We will help you pick a charger that fits your routine and budget and show you how to get the most from it.
For Solar Users
Already generating your own electricity? A solar-compatible EV charger lets you put even more of that power to good use. We will make sure your charger prioritises your panels, so you can drive on sunshine.
For Developers and New Builds
New homes now need EV chargers as standard - and we will help you get it right. Whether it is a single install or multiple plots, we’ll deliver smart, compliant setups that add long-term value and peace of mind.
For Businesses, Landlords & Hospitality
Want to offer charging for staff, tenants or guests? We will design a dependable, cost-effective workplace EV charging solution that’s simple to manage and built to last, whether you run a B&B, office, shop, or shared residential site.
How It Works — Our Simple 5-Step Process
Free Survey & Chat
We’ll visit your property, look at your current setup, and talk through what you need - whether it is to install an EV charger on your driveway, link to solar, or prepare for your new car.
Charger Recommendations
You’ll get clear, friendly advice on the best options, from tethered or untethered EV chargers to 7kW or 22kW chargers, and everything in between.
Fixed-Price Quote
No jargon, no hidden fees. Just an honest price, including supply, fitting, testing, and all the paperwork.
Professional Installation
We turn up when we say we will, respect your space, and leave things tidy. Our installs look just as good as they work.
Support That Lasts
We don’t disappear after the install. If you’ve got questions down the line, want to upgrade, or need a service check, we are just a call away.
EV Charger Servicing & Repairs
A reliable EV charger means one less thing to worry about. We carry out thorough EV servicing for home and commercial charging points, checking functionality, safety features, and connectivity.
If something’s gone wrong - like your charger not responding or failing to start a charge, our EV charging repair service can diagnose and fix the issue quickly. Regular EV charger maintenance helps prevent unexpected faults and keeps your setup working exactly as it should, day after day.
Click to see our servicing and maintenance options
- Solar PV FAQs
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Do I need planning permission?
Not usually. If your property is listed or in a conservation area, we’ll help you find out what’s needed.
What’s the average cost of a home charger?We’ll give you a fixed quote based on your setup and needs.
Can I charge using solar?Absolutely. A solar-compatible EV charger lets you power your car with your own energy. It’s one of the greenest upgrades you can make.
Should I choose tethered or untethered?Tethered is great for convenience. Untethered is neater and flexible if you change cars. We’ll help you choose what suits you.
What if I get a different EV later on?We install systems that are compatible with all major EV brands — like Tesla, Nissan Leaf, Kia EV6, and more. If you switch, your charger will still work.
How long does fitting take?Most installs are completed in under a day. We’ll confirm exact timing once we’ve seen your setup.
Let’s Power Up
Installing an EV charger isn’t just another job on your to-do list. It is part of a bigger step toward sustainable living, energy independence, and doing the right thing - for yourself, your family, and the planet.
At GreenR Renewables, we are here to make that step feel easy, well-considered, and totally worthwhile. Whether it is your first EV or your fifth, we’ll help you charge smarter, with a setup that’s clean, reliable, and ready for the future.
Get in touch today to book a free survey, ask a question, or just have a friendly chat about what’s possible.

There’s nothing quite like stepping onto a warm floor first thing in the morning. No cold tiles. No noisy radiators clanking to life. Just a gentle, consistent heat that runs quietly, efficiently, and beautifully out of sight.
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What Is Underfloor Heating, And Why More Homes in Cornwall Are Choosing It
Underfloor heating (or radiant floor heating) works by gently warming the floor surface, spreading heat evenly through the room from the ground up. It means no more cold corners or draughty spaces — just a steady warmth that makes every part of your home more cosy.
Here is why it is such a popular choice:
- Comfort where it counts - consistent heat from floor to ceiling
- More space to enjoy - no bulky radiators in the way
- Better for your bills - lower operating temperatures = lower energy costs
- Cleaner air - less dust circulates around your home
- Future-friendly - works brilliantly with heat pumps and smart controls
- Silent operation - just gentle, invisible warmth
As it runs at low flow temperatures, it uses energy more efficiently than traditional radiators, especially when paired with renewable tech like heat pumps or solar PV.
What is Included in Our Underfloor Heating Service
Whether you’re building new, renovating, or retrofitting an older home, we’ve got a range of underfloor heating options to suit. We install both electric underfloor heating (great for smaller spaces or quick retrofits) and wet underfloor heating systems (also called hydronic underfloor heating) - ideal for whole-home comfort and better long-term efficiency.
Here's how it works:
We Listen First.
You tell us what you want from your heating - whether that is lower bills, cosier rooms, or a cleaner, more open layout. We’ll talk through your plans and what you’d like to achieve, then assess your space and flooring types.
Then we Design the Right System.
That means thoughtful pipe layouts, zoning and controls, and heating that suits your home and habits. We tailor everything to your home, floor buildup, and how you live. From screed systems to dry installation methods, we will design an installation that works for you and your home.
Next, we Install With Care.
From neat pipework to tidy finishes, our team pays attention to the details. Our engineers are tidy, respectful, and experienced. You will get a clean finish and thoughtful touches like room-by-room heating zones. Want to control your heating from your phone? We will make sure it is ready for smart thermostat integration.
Finally, we Commission and Support.
We will test everything and walk you through how it works. Once installed, we commission the system and make sure you are confident using it. We are local (based in Bude), so we are never far away if you need advice or support.
We also take care of the behind-the-scenes work like manifold installation, insulation checks, and guidance on keeping the system running smoothly for years to come.
We know having work done in your home can feel disruptive. So, we aim to make the process clear, comfortable, and as smooth as possible. Whether it is a full new build heating solution, a single-room retrofit, or heating for large open spaces, we bring the same care and commitment to every job.
Extensive Knowledge in the Renewables Sector
"I recently had the pleasure of working with GreenR and was thoroughly impressed by their professionalism and extensive knowledge in the renewables sector. They provided fantastic service at competitive prices, making the entire process seamless and efficient. I will definitely be working with them again in the future."
Luke
Underfloor Heating Servicing & Repairs
If your underfloor heating isn’t warming properly, it is often a sign it needs servicing. We provide thorough underfloor heating servicing that covers thermostats, pumps, manifolds, and flow rates.
Our experienced underfloor heating engineers will get to the root of the issue and restore balance to your system. Whether it is a full underfloor heating repair or simple seasonal underfloor heating maintenance, we will help keep your home evenly warm and running efficiently.
Click to see our servicing and maintenance options
- Underfloor Heating FAQs
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Are there different kinds of underfloor heating?
Yes. We install both electric underfloor heating (quick to install, ideal for smaller areas) and wet underfloor heating (uses warm water – great for whole-home or large spaces).
Can you fit it in older homes?Absolutely. We offer retrofit underfloor heating systems with minimal floor buildup, designed specifically for existing homes.
What flooring works with it?Most do! Tile, wood, vinyl, and even carpet - we’ll tailor the system to suit your chosen finish.
Does it cost more to run?Not usually. It works at lower temperatures, which means you use less energy, especially with renewables like heat pumps.
How long does it take to install?For a single room, maybe a day or two. A full new build might take a few days. We’ll always give you a clear schedule before we start.
Does it need much maintenance?Very little. Our high-performance heating systems are built to last, and we’re always happy to provide guidance if needed.
A Warmer, Smarter Home Starts From the Ground Up
Underfloor heating is more than just a comfort upgrade - it is a long-term investment in how your home feels, functions, and performs.
At GreenR Renewables, we bring together deep technical knowledge, careful installation, and a genuine commitment to helping you get the most from your heating. Whether you’re renovating a family home or designing your dream self-build, we’ll help you create a space that’s warm, efficient, and built to last.
Let’s make your home warmer and smarter, together.
Reach out today for a friendly, no-pressure chat about your project. We will help you explore your options and find a solution that is right for you.

Make the most of your solar power by redirecting surplus energy into hot water, heating, or appliances. Reduce reliance on the grid, cut bills, and maximise your home’s efficiency
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What You Get With Our Renewable Energy Diversion Setup
We offer a full service, not just a box and a bill. We start with your home, your goals, and your existing system. Then we design a solution that makes sense for all three.
Your install typically includes:
A Myenergi Eddi solar diverter unit
Professionally installed, cleanly wired, and built to integrate smoothly with your existing solar PV
Tariff-aware water diverters
Programmable to heat water when grid prices dip
A system review
We’ll check your setup, advise on best placement, and flag any wiring tweaks you might need
Smart app setup
So you can see what’s happening in real time, whether you're checking your energy use or just want the satisfaction of watching free hot water tick up
Load control
Fits your home - immersion heater, towel rails, or even your underfloor loop if needed
Installation by local engineers
Who’ve seen the inside of more Cornish plant rooms than we can count
Optional extras? Absolutely - if they make sense for your setup:
- EV charging that uses spare solar
- Annual performance check-ups
- Solar panel cleaning, if yours are hard to access
- System designs that leave room for batteries later
We’ve fitted systems in homes across Bude, Padstow, Wadebridge, Bodmin and plenty of villages in between. If your place has solar and space for a cylinder, we’ll help you make the most of it.
Here's how the process goes:
We have a quick chat.
It could be a site visit or just a friendly phone call. We learn what you're running and what you’d like to achieve.
We check your system.
A few checks, a bit of planning, and a clear quote.
Installation day.
Most are done in less than a day.
You start using more of your own power.
That simple. You will see it happening, especially on sunny days.
Energy Diversion Testimonials
"Cai and Richard, at GreenR Renewables are amazing! I had a heat pump and solar panels installed with an EDDI. They talked through everything, so that even I could understand the technology and its every day usage. The savings I'm making through the solar instalation is great and how they set it up for the solar to help with the running of the heat pump saves so much money to! It was really nice to work and support a small local company, where you really felt part of the project."
Nicky B
Energy Diversion & Eddi Servicing
If your Eddi or solar diverter isn’t working as expected, it could be wasting valuable solar energy.
We offer targeted Eddi diverter troubleshooting and general energy diversion system checks to get things flowing correctly again. From tuning settings to software updates, we help optimise how surplus energy is directed - whether it is to your hot water tank, EV charger, or battery. A well-maintained diverter means lower bills, and a smarter, more efficient home.
- What People Often Ask
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Is this better than getting a battery?
Different tools, different jobs. A diverter is cheaper, simpler, and brilliant for hot water. If you’re heating a tank daily, it’ll pay for itself quickly.
Can I still export to the grid?Yes. It only diverts what's left over after the rest of your house has taken its share.
Does it need an app?Not at all. But if you’re the curious type, the app gives you a great window into what’s going on.
Will it work with my existing PV?Almost certainly - we’ll double-check in our initial assessment, but Eddi works with most modern setups.
Can I use it for more than hot water?Absolutely. We can set it to feed towel rails, underfloor heating, or other resistive loads - it’s all about how your home is wired.
Will it work with my heat pump setup?Almost certainly – especially if you’ve got a hot water cylinder or buffer tank. We’ll assess it as part of the quote.
Can I programme it to use off-peak electricity too?Yes – especially with tariff-aware diverters, which we can configure for Agile-style or Economy 7 pricing.
Ready to Use More of Your Solar Energy?
We would love to help.
No hard sell. Just straight advice from engineers who care about doing things properly. You will get a system that saves you money and adds value to your home.

Keep it running. We offer honest reliable servicing for everything we install, plus sensible upgrades when the time's right. No pressure. No pushy sales. Just support that supports you.
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What We Cover
Heat Pump Servicing (Air Source & Ground Source)
We check flow rates, refrigerant levels, controls, filters and performance. If your system’s struggling to heat efficiently, we’ll spot it, and fix it.
✔ Full system diagnostics
✔ Flow rates and pressures
✔ Filter and strainer cleaning
✔ Control optimisationSolar PV Checks
We assess panel condition, inverter output and generation performance. A drop in solar yield often points to a fault we can catch early.
✔ Inverter checks and output testing
✔ Panel inspection (debris, corrosion, wear)
✔ Isolation switch function testing
✔ Generation data reportMVHR System Maintenance
Filters, air balance and fan performance all matter here. We help stop stale air, noise or inefficiency in its tracks - often with just a small adjustment.
✔ Ventilation balance and airflow tests
✔ Filter cleaning/replacement
✔ Heat exchanger and ducting check
✔ User control review and guidanceHome Battery Storage Health Checks
Charging and discharging cycles, firmware, safety checks - your battery deserves the same attention as your panels and pump.
✔ Charge/discharge cycle review
✔ Firmware updates
✔ Safety checks on wiring and housing
✔ Performance efficiency reportEV Charging Points
We test functionality, fault indicators and connectivity — whether it is a charger at home or multiple units on a shared development.
✔ Load testing and fault diagnostics
✔ RCD and isolation safety tests
✔ Smart charge settings support
✔ Cable condition and software updatesUnderfloor Heating
Flow calibration, control testing and manifold inspection all help keep your home evenly warm without excess energy use.
✔ Circuit performance and heat distribution
✔ Thermostat and sensor review
✔ Pump and manifold inspection
✔ Flow rate calibrationSolar Diversion Devices
If your diverter isn’t sending energy where it should, we’ll optimise it. Small changes can mean better savings and smarter usage.
✔ Real-time performance and calibration
✔ Firmware updates
✔ Grid-tied settings review
✔ Solar-to-load balancing adviceWhat Often Goes Wrong (and How we Help)
Even the best systems need attention now and then. Common issues we are called out for include:
- Unclear servicing schedules — “Am I supposed to get this checked every year?”
- Systems underperforming — higher bills, poor heating, low solar output
- Warranty worries — not sure what needs doing to keep them valid
- Confusion after a build — unclear documentation or no proper handover
- Juggling contractors — different systems, different companies, no joined-up care
- Minor issues becoming big ones — blocked filters, diverter faults, inefficient controls
- We make maintenance easy to manage — combined visits, clear reports, and a service that feels built around you.
Designed Around You
Whether you have just finished building or have lived in your home for years, you want the same things: reliability, low bills, and the confidence that your systems are doing their job.
Here is how we help:
Bundled servicing
Save time and money by booking one visit to look after all your systems - from heat pumps to solar, MVHR to EV.
Engineers who care
No rushing, no guesswork. Our team takes pride in what we do, and we take the time to explain what we’ve found, in plain language.
Performance-first approach
We don’t just maintain. We tune, tweak and improve, so you get the most out of your tech, not just keep it ticking over.
Certified and trusted
We are MCS-certified, NICEIC approved, and part of the Heat Geek network. Our advice is honest, compliant and backed by experience.
Ongoing support
We offer annual plans with reminders, digital records, and priority callouts. No forgotten checks. No chasing paperwork.
Optional extras include:
- Post-installation audits
- Smart control setup or refresher
- Remote monitoring advice
- Seasonal performance tuning
- Filter packs or maintenance guides
Feedback From Local Homeowners
“GreenR were the first company that looked at our whole system, not just the pump or the solar. It’s working better now than it did when it was first installed.”
Ben & Sarah, near Bude
- Servicing + Maintenance FAQs
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Do I need to service everything every year?
In most cases, yes - especially for heat pumps, MVHR and EV chargers. Solar and batteries may only need attention every 1–2 years, depending on usage and age.
Can you take over systems installed by someone else?Yes. We’re happy to assess and support systems we didn’t install - it’s something we do often.
What if I have an issue between services?We offer repair visits and emergency support for regular customers. If something’s not right, just get in touch.
Will you combine servicing for all my systems?Absolutely. It’s what we do best. It saves you time and gives us a fuller picture of your system’s overall health.
Do I need to be home?Yes, ideally. It helps if you can walk us through your controls, any issues you’ve noticed, and access the units we’re servicing.
Let’s Keep Things Running as They Should
Your renewable systems are built to last, but they still need care. Regular check-ups can stop faults before they start, improve efficiency, and give you confidence when it matters most.
Whether you are managing a new self-build or just want to stay ahead of maintenance in your existing home, we are here to help.
✔ One local engineer for all your systems
✔ Certified service with a personal touch
✔ Clear reporting, practical advice, and no pressure
Book a visit today or get in touch to talk things through.

From rewires, inspections and consumer units to boiler servicing and gas safety checks, we provide the full range of electrical and gas services. Whether it’s a small repair or a large installation, you can rely on us for safe, professional work every time
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Gas and Electrical Services Tailored to Low-Energy Homes
Serving Cornwall homeowners from Bude to Boscastle, Wadebridge to Padstow and beyond.
We design and deliver the sort of technical work that many tradespeople steer clear of - because when it comes to renewables, it is not just about “getting it working.” It is about getting it right.
Here is what we offer, and how it all connects.
Electrical Installations with Renewables in Mind
We are specialist renewable energy electricians in Cornwall that homeowners trust. Every install is certified and carefully planned.
Our consumer units are designed with renewable energy systems in mind; neat, labelled work you can understand at a glance.
We regularly carry out:
- Upgrades to accommodate air source heat pumps
- Safe integration of solar PV wiring and battery systems
- EV charger installations (Tesla and more)
- MyEnergi Eddi diverter wiring for solar hot water
- Smart heating controls and zoning circuits
- MVHR wiring for mechanical ventilation
- Full electrical schematics, testing, and Part P sign-off
Every detail is planned with longevity and serviceability in mind, so your system works as beautifully as it looks.
Specialist Gas Engineering With a Low-Carbon Focus
If you are keeping a gas boiler for now, we will make sure it works safely alongside your renewables. If you are ditching gas entirely, we will take care of that too.
We also support step-by-step decarbonisation. If you are planning to switch to a heat pump in future but keeping your boiler for now, we will set up your system so that changeover is simple, safe, and smooth when the time comes. From optimised pipe layouts to hybrid-ready controls, we design for today and tomorrow, so you are not paying twice to undo rushed or incompatible work.
As gas engineers for hybrid heating systems, we know the difference between a temporary setup and a well-planned, phased transition.
Typical work includes:
- Capping and safely decommissioning gas appliances
- Rerouting pipework for low-temperature UFH setups
- Supporting hybrid heat pump and boiler systems
- Ensuring Gas Safe compliance across all work
We know how these systems behave in the real world and how to prepare for what’s next.
Designed Around You — and Your Home
Whether you live in a stone-built cottage or a timber-framed self-build, we tailor our approach to suit the building, your goals, and how you want to live.
Here’s how we usually work:
Design & Planning
We look at your whole setup — not just the bit we are wiring. That includes load checks, routing plans, and smart layout decisions based on how you’ll actually use the system.
Preparation
We carry out any disconnections, pipe rerouting, or inspections before install day, so the main work runs smoothly.
Installation
Work is carried out by qualified electricians and Gas Safe engineers. Everything is tested, documented, and explained.
Commissioning & Handover
You will get a complete walkthrough, certification pack, and help setting up your apps or controls. If something is not clear, we are just down (or up) the road.
Local Stories From Local Homes
“They didn’t just wire the system — they made it make sense. Our solar, battery, heat pump, and Eddi now work as one. Honestly, it’s a relief.”
– Emma & Dave, near Boscastle
- Questions We Often Hear
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Can’t my usual electrician do this?
Maybe - but unless they’ve worked with batteries, diverters, or heat pumps, chances are they’ll miss key steps or delay your sign-off. We’ve seen it too many times. We do everything in-house, from start to finish.
Is electrical work included in your solar or heat pump quotes?Yes, all essential electrical and gas works are included. Optional extras (like EV circuits or diverters) are priced clearly.
Will I lose power during the work?Briefly, yes - but we’ll let you know ahead of time and keep disruption to a minimum.
Do you work in remote or rural areas?Absolutely. We’ve installed systems in off-grid cabins and farms across Cornwall. We know how to handle limited grid supply and get creative when we need to.
Can I just book you for electrical upgrades?Yes. We offer standalone works too — from solar PV retrofits to underfloor heating controls and wiring.
Let’s Make It Work — Properly
If you are looking for a renewable energy electrician or gas engineer in Cornwall who will treat your home like it is their own, you have found us.
We don’t cut corners. We don’t blame “the other trades.” And we don’t disappear once the invoice has been paid.
You will get:
- Clean, certified, renewable-specific workmanship
- Smart system design with human logic
- Local support from a real team you can call
- Pride in the details - from cable runs and ductwork to control apps
Book Your Free Consultation
Let’s get your system designed, installed, and working the way it should.