A comfortable home shouldn’t come at the cost of stale air or rising energy bills. As homes get better at holding in heat, they also tend to hold onto moisture, smells, and airborne pollutants too. And that’s where a lot of modern homes fall short.

A well-designed Mechanical Ventilation with Heat Recovery (MVHR) system changes all that.

It quietly removes stale air from your home and brings in a constant flow of fresh, filtered air.  This smart system gently replaces stale indoor air with fresh, filtered air, while cleverly recovering warmth from the outgoing air to reduce heat loss. In fact, it recovers up to 90% of that heat, helping your heat pump or other low-carbon systems run more efficiently.

  • At GreenR Renewables, we don’t just install MVHR systems, we engineer them to work beautifully in your home.  Whether you’re retrofitting an older property or building to Passive House standards, MVHR is a powerful ally in creating a healthier, warmer, more energy-efficient home.

    What Is MVHR?

    ... and what does MVHR stand for?

    MVHR stands for Mechanical Ventilation with Heat Recovery — a whole-house system that:

    • It pulls stale, humid air out of rooms like kitchens and bathrooms
    • It captures the heat from that outgoing air using a heat exchanger
    • It draws in fresh air from outside, filters it, and warms it up
    • Then it gently distributes that warm, clean air around your home

    The result?

    A balanced ventilation system that keeps you warm in winter, cool in summer, and breathing easier all year round. It s a smart, whole-house ventilation system and an energy-saving alternative to traditional extractor fans or trickle vents - ideal for airtight, energy-conscious homes.

    Who Is MVHR For?

    MVHR helps solve all of these by providing fresh air circulation, humidity control, and improved indoor air quality (IAQ) - all without cracking a window.

    • Self-builders creating eco-conscious homes from scratch
    • Architects and designers who want reliable, high-performance systems
    • Health-conscious families dealing with allergies, asthma, or damp
    • Retirees downsizing into warm, easy-to-run homes
    • Renovators improving the comfort and efficiency of older properties
    • Developers building future-proof, low-carbon homes
    • And anyone who values clean air, comfort, and lower energy bills

    We are based in Cornwall and know the region’s homes, builders, and challenges well — from coastal breezes to thick granite walls.

    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.

    Installation

    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.

    Installation

    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.

    Installation

    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.

    Installation

    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.

    Why Choose GreenR Renewables?

    We are not a big, faceless company. We are local, qualified, and care deeply about getting your home working the way it should.

    Engineering-Led Expertise

    We size systems based on real-world performance, not guesswork.

    Craftsmanship You Can Trust

    Tidy installs, quality components, and local pride in every detail.

    Certified & Connected

    MCS certified, Heat Geek approved, and familiar with SAP, Passive House, and Part F compliance.

    Local Knowledge

    Our team are local ventilation experts who understand Cornish properties

    Holistic System Thinking

    We integrate MVHR into your full home energy strategy — not as an afterthought.

    From eco homes in Bude to low-energy new builds in Wadebridge, we are proud to bring fresh air and future-ready solutions to homes across Cornwall.

    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
  • 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.

Services

We take full responsibility for the performance of your system - from the first design to the final fix. No outsourcing. No shortcuts. Just beautifully engineered renewables that do exactly what you need them to. Expertly engineered and installed for lasting reliability, high efficiency and technical precision - right down to the smallest detail.

Heat Pumps

Heat Pumps

Expertly engineered heat pumps for comfort, efficiency and low-carbon living

Read More
Solar PV

Solar PV

Tailored solar systems for ecofriendly solutions, lower bills and energy independence

Read More
Home Battery Storage

Home Battery Storage

Smart home batteries to store surplus solar power, maximise on savings and enjoy reliable back up during outages

Read More
EV Chargers

EV Chargers

Reliable EV Charging to maximise off-peak charging at home, integrated seamlessly with your renewable systems

Read More
MVHR Ventilation

MVHR Ventilation

Improving fresh air quality and removing waste - mechanical ventilation that works beautifully

Read More
Underfloor Heating

Underfloor Heating

Invisible warmth beneath your feet, designed for enhanced comfort, even heat distribution and efficiency

Read More
Energy Diversion

Energy Diversion

Maximise your solar — divert excess energy, reduce grid reliance

Read More
Servicing & Maintenance

Servicing & Maintenance

Expert care for reliable renewable systems and long-term optimal performance

Read More
Gas & Electrical Works

Gas & Electrical Works

Certified Gas Safe and NICEIC electrical engineers, offering support and compliant renewables

Read More

Proudly Local, Widely Trusted, Fully Certified

We are proud to hold industry-recognised accreditations - not just for show, but because they mean something for you. We are part of the Cornish community and take pride in being the engineers that local homeowners recommend. From our qualifications to the products we use, everything is chosen for performance, longevity, and peace of mind.


image 374x240 Heat Geek Logo Colour with tagline  image 240x270image 401x240image 533x240Tesla300x


  • MCS Certified Installer - The industry benchmark for renewable installations
  • Heat Geek Verified - High-performance system design & installation
  • RECC Member- High consumer protection standards
  • NICEIC Registered Electrician - Certified safe electrical installation & maintenance
  • Gas Safe Register - Licensed and legally permitted to undertake gas work (942985)
  • SolarEdge-Certified Installer - Expert installation of premium solar technology
  • Vaillant Renewable Partner - Expert product knowledge & technical heating advice
  • OZEV Approved EV Chargepoint Installer - Access to government grant schemes
  • Building Compliance - Fully Compliant with Part P & Building Control Regulations
  • Based in Cornwall - We are truly local (Bude) and not just covering the area

Local Experts, Proudly Serving Cornwall 

Bodmin  |  Launceston  |  Camelford  |  Boscastle  |  Padstow  |  Wadebridge  |  Bude  |  Bideford