Northwood Hills, Greater London
MVHR installation in Northwood Hills
Whole-home heat recovery ventilation, designed room by room and airflow-tested at handover. Covering Northwood Hills and HA4, HA5 and HA6.
- From £5,350 inc VAT per home
- Free survey

We survey Northwood Hills homes for MVHR before quoting, because the duct routes decide the price more than the unit does.
Whether the property is in the middle of Northwood Hills 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 Northwood Hills at a glance
- Town
- Northwood Hills, Greater London
- Postcode districts
- HA4, HA5 and HA6
- Nearby
- Northwood (1 mile), Pinner (1 mile) and Ruislip (2 miles)
- Price region
- London
- Survey
- Free survey (UK mainland)
What the work involves
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. Filters on both sides keep pollen and dust out of the house and keep the exchanger clean.
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 Northwood Hills
| Work | Guide price |
|---|---|
| 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 |
| Whole-home MVHR retrofit, 4 to 5 bedroom house (per home) | £10,750–£16,750 inc VAT |
London rates shown. Prices include VAT at 20%. The fixed price is confirmed in writing after we have seen the job.
Common reasons people call
- 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). For homes, it sets minimum extract rates such as 15 litres a second for a bathroom and 30 or 60 for a kitchen, and expects mechanical systems to be airflow-tested.
Questions from Northwood Hills
What is the price of MVHR in Northwood Hills?
Guide prices for Northwood Hills 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.
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.
Is the survey free in Northwood Hills?
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 Northwood Hills?
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 Northwood Hills home before we visit.
MVHR near Northwood Hills
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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.