Barnes, Greater London
MVHR installation in Barnes
Whole-home heat recovery ventilation, designed room by room and airflow-tested at handover. Covering Barnes and SW13, SW14 and W4.
- From £5,350 inc VAT per home
- Free survey

We survey Barnes homes for MVHR before quoting, because the duct routes decide the price more than the unit does.
For MVHR installation in Barnes, send us the postcode, a few photos and a rough idea of the rooms involved. We will tell you what we would fit and roughly what it costs before arranging a visit.
MVHR in Barnes at a glance
- Town
- Barnes, Greater London
- Postcode districts
- SW13, SW14 and W4
- Nearby
- Mortlake (1 mile), East Sheen (1 mile) and Chiswick (1 mile)
- Price region
- London
- Survey
- Free survey (UK mainland)
MVHR for Barnes homes
A single unit, usually in the loft, a utility cupboard or a garage, runs all the time at a low, quiet speed. Insulated ducts carry extract air from the wet rooms and supply air to the habitable rooms.
New build or full renovation
Ducts go in at first fix before plasterboard, which is the cheapest and neatest time to fit MVHR.
Radial semi-rigid ducting
One small duct per valve from a manifold. Quieter and easier to balance than branched rigid duct in most homes.
Guide prices in Barnes
| Work | Guide price |
|---|---|
| Whole-home MVHR retrofit, 3 bedroom house (per home) | £7,750–£11,350 inc VAT |
| Whole-home MVHR retrofit, 4 to 5 bedroom house (per home) | £10,750–£16,750 inc VAT |
| MVHR in a new build or full renovation (fitted at first fix), 3 to 4 bedrooms (per home) | £5,950–£9,550 inc VAT |
These ranges use our London rates. Prices include VAT at 20%. You get a fixed written price before any work is booked.
Common reasons people call
- A new build or extension where the SAP or building control needs a ventilation system
- Stale air or cooking smells that hang around
- Pollen or traffic pollution you want filtered out
Rules that apply in England
In England, ventilation is covered by Part F of the Building Regulations and its guidance, Approved Document F (2021 edition). It sets extract rates for kitchens, bathrooms and utilities and asks for mechanical ventilation to be commissioned and recorded.
Questions from Barnes
What is the price of MVHR in Barnes?
Guide prices for Barnes use London rates: whole-home MVHR retrofit, 1 to 2 bedroom flat is typically £5,350 to £8,350 inc VAT per home. We confirm a fixed price in writing before any work starts.
Can MVHR cool the house in summer?
MVHR is not air conditioning, but a summer bypass lets cooler night air in without warming it, which helps take the edge off hot rooms. For real cooling you would need a separate system.
How much does MVHR cost to install?
A typical retrofit costs £6,450 to £9,450 including VAT for a three-bedroom house, and £4,950 to £7,950 when it goes in during a new build or full renovation. Flats start lower and large detached homes cost more because of the duct runs. We give a fixed price after the survey.
Is the survey free in Barnes?
For new installations on the UK mainland, yes. The survey is free and the quote that follows is fixed and in writing. Servicing, testing and repair visits are charged, and we confirm the cost before booking.
How do I get a price for MVHR in Barnes?
Use the guide price tool, the form on this page, live chat, WhatsApp or call 0800 088 6341. A postcode and a couple of photos help us give you a useful answer first time.
Send us a floor plan or a few photos of the loft and we can give a first price for your Barnes home before we visit.
MVHR near Barnes
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Get a guide price in two minutes
Answer a few questions for a price range, or send photos and we will come back to you with a written quote.