Farnham, Surrey
MVHR installation in Farnham
Whole-home heat recovery ventilation, designed room by room and airflow-tested at handover. Covering Farnham and GU9, GU10 and GU11.
- From £4,900 inc VAT per home
- Free survey

MVHR often makes sense in Farnham homes that have recently been insulated, re-windowed or made more airtight.
Whether the property is in the middle of Farnham or one of the villages around it, the process is the same: a look at the building, a written price, then fitting and testing on the agreed day.
MVHR in Farnham at a glance
- Town
- Farnham, Surrey
- Postcode districts
- GU9, GU10 and GU11
- Nearby
- Hale (1 mile), Aldershot (3 miles) and Fleet (5 miles)
- Price region
- South East
- Survey
- Free survey (UK mainland)
MVHR for Farnham homes
Filters on both sides keep pollen and dust out of the house and keep the exchanger clean. MVHR works best in a home that is reasonably airtight: a new build, a deep retrofit with insulation and new windows, or a renovation where ceilings are coming down anyway.
Retrofit in an occupied home
Ducts routed through the loft and down through cupboards or boxed corners. Most semis are done in 3 to 5 days.
New build or full renovation
Ducts go in at first fix before plasterboard, which is the cheapest and neatest time to fit MVHR.
Guide prices in Farnham
| Work | Guide price |
|---|---|
| Whole-home MVHR retrofit, 3 bedroom house (per home) | £7,100–£10,400 inc VAT |
| Whole-home MVHR retrofit, 4 to 5 bedroom house (per home) | £9,850–£15,350 inc VAT |
| MVHR in a new build or full renovation (fitted at first fix), 3 to 4 bedrooms (per home) | £5,450–£8,750 inc VAT |
South East rates shown. Prices include VAT at 20%. The fixed price is confirmed in writing after we have seen the job.
When to get it looked at
- Mould coming back in bedrooms or bathrooms after cleaning
- 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
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 Farnham
How do I get a price for MVHR in Farnham?
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.
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.
What area around Farnham do you work in?
All of Surrey. Near Farnham that includes Hale, Aldershot, Fleet and Farnborough.
Do you cover Farnham and nearby?
Yes. We cover Farnham and nearby places including Hale, Aldershot, Fleet and Farnborough. Send your postcode and we will confirm.
Every MVHR job in Farnham finishes with a measured commissioning sheet, so you know the system does what it should.
MVHR near Farnham
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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.