Harrow Weald, Greater London
MVHR installation in Harrow Weald
Whole-home heat recovery ventilation, designed room by room and airflow-tested at handover. Covering Harrow Weald and HA1, HA3 and HA7.
- From £5,350 inc VAT per home
- Free survey

MVHR often makes sense in Harrow Weald homes that have recently been insulated, re-windowed or made more airtight.
Customers in Harrow Weald can get a guide price online in a couple of minutes. It uses London rates, which is what we would charge for the same job anywhere in Greater London. Surveys for new installations are free on the UK mainland, with a written quote afterwards.
MVHR in Harrow Weald at a glance
- Town
- Harrow Weald, Greater London
- Postcode districts
- HA1, HA3 and HA7
- Nearby
- Wealdstone (1 mile), Headstone (1 mile) and Harrow (2 miles)
- Price region
- London
- Survey
- Free survey (UK mainland)
What the work involves
In a draughty older house it still ventilates well, but less of the heat-recovery benefit is felt because warm air escapes through gaps instead of the unit. We check this on survey and tell you plainly if a simpler system would do the job for less.
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 Harrow Weald
| Work | Guide price |
|---|---|
| MVHR in a new build or full renovation (fitted at first fix), 3 to 4 bedrooms (per home) | £5,950–£9,550 inc VAT |
| Whole-home MVHR retrofit, 1 to 2 bedroom flat (per home) | £5,350–£8,350 inc VAT |
| Whole-home MVHR retrofit, 3 bedroom house (per home) | £7,750–£11,350 inc VAT |
Guide prices using London 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
- Stale air or cooking smells that hang around
- Pollen or traffic pollution you want filtered out
- Condensation on windows every morning in winter
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 Harrow Weald
Do you cover Harrow Weald and nearby?
Yes. We cover Harrow Weald and nearby places including Wealdstone, Headstone, Harrow and Pinner. Send your postcode and we will confirm.
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.
How often does MVHR need servicing?
Filters usually need changing every 6 to 12 months, and a full service with a clean and airflow check once a year keeps the system efficient. Clogged filters are the most common reason MVHR stops working properly.
What is the price of MVHR in Harrow Weald?
Guide prices for Harrow Weald 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.
Is the survey free in Harrow Weald?
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.
Send us a floor plan or a few photos of the loft and we can give a first price for your Harrow Weald home before we visit.
MVHR near Harrow Weald
More services in Harrow Weald
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.