Corsham, Wiltshire
MVHR installation in Corsham
Whole-home heat recovery ventilation, designed room by room and airflow-tested at handover. Covering Corsham and SN12, SN13 and SN14.
- From £4,625 inc VAT per home
- Free survey

MVHR often makes sense in Corsham homes that have recently been insulated, re-windowed or made more airtight.
Customers in Corsham can get a guide price online in a couple of minutes. It uses South West rates, which is what we would charge for the same job anywhere in Wiltshire. Surveys for new installations are free on the UK mainland, with a written quote afterwards.
MVHR in Corsham at a glance
- Town
- Corsham, Wiltshire
- Postcode districts
- SN12, SN13 and SN14
- Nearby
- Neston (2 miles), Chippenham (3 miles) and Melksham (5 miles)
- Price region
- South West
- Survey
- Free survey (UK mainland)
How we approach MVHR in Corsham
Insulated ducts carry extract air from the wet rooms and supply air to the habitable rooms. Inside the unit the two airflows pass each other across a heat exchanger without mixing, so the incoming fresh air picks up heat from the outgoing air.
Radial semi-rigid ducting
One small duct per valve from a manifold. Quieter and easier to balance than branched rigid duct in most homes.
Summer bypass and boost controls
Bypass lets cooler night air in without heat recovery; humidity or switch boost for showers and cooking.
Guide prices in Corsham
| Work | Guide price |
|---|---|
| Whole-home MVHR retrofit, 3 bedroom house (per home) | £6,700–£9,850 inc VAT |
| Whole-home MVHR retrofit, 4 to 5 bedroom house (per home) | £9,300–£14,500 inc VAT |
| MVHR in a new build or full renovation (fitted at first fix), 3 to 4 bedrooms (per home) | £5,150–£8,250 inc VAT |
Guide prices using South West rates. Prices include VAT at 20%. A guide price is not a quote: we confirm a fixed price in writing first.
When to get it looked at
- You are insulating, re-windowing or making the house more airtight
- A new build or extension where the SAP or building control needs a ventilation system
- Stale air or cooking smells that hang around
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 Corsham
What is the price of MVHR in Corsham?
Guide prices for Corsham use South West rates: whole-home MVHR retrofit, 1 to 2 bedroom flat is typically £4,625 to £7,250 inc VAT per home. We confirm a fixed price in writing before any work starts.
How noisy is MVHR?
Correctly sized and balanced MVHR is very quiet on normal speed; most people stop noticing it within days. Noise problems usually come from undersized ducts or a unit running flat out, which is why we design the rates first.
Do I keep my trickle vents with MVHR?
No. Under Approved Document F, background ventilators should not be installed with a whole-home MVHR system, so we advise closing or removing them once the system is commissioned.
Is the survey free in Corsham?
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 Corsham?
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 Corsham home before we visit.
MVHR near Corsham
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Answer a few questions for a price range, or send photos and we will come back to you with a written quote.