Croxley Green, Hertfordshire
MVHR installation in Croxley Green
Whole-home heat recovery ventilation, designed room by room and airflow-tested at handover. Covering Croxley Green and HA6, WD3 and WD18.
- From £4,675 inc VAT per home
- Free survey

We survey Croxley Green homes for MVHR before quoting, because the duct routes decide the price more than the unit does.
Work in Croxley Green follows the rules for England and finishes with a written record of what was fitted and how it was set up.
MVHR in Croxley Green at a glance
- Town
- Croxley Green, Hertfordshire
- Postcode districts
- HA6, WD3 and WD18
- Nearby
- Batchworth (1 mile), Rickmansworth (1 mile) and Northwood (2 miles)
- Price region
- East of England
- Survey
- Free survey (UK mainland)
How we approach MVHR in Croxley Green
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. 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.
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 Croxley Green
| Work | Guide price |
|---|---|
| Whole-home MVHR retrofit, 1 to 2 bedroom flat (per home) | £4,675–£7,300 inc VAT |
| Whole-home MVHR retrofit, 3 bedroom house (per home) | £6,750–£9,900 inc VAT |
| Whole-home MVHR retrofit, 4 to 5 bedroom house (per home) | £9,400–£14,650 inc VAT |
These ranges use our East of England rates. Prices include VAT at 20%. You get a fixed written price before any work is booked.
Common reasons people call
- Condensation on windows every morning in winter
- Mould coming back in bedrooms or bathrooms after cleaning
- You are insulating, re-windowing or making the house more airtight
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 Croxley Green
What area around Croxley Green do you work in?
All of Hertfordshire. Near Croxley Green that includes Batchworth, Rickmansworth, Northwood and West Watford.
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.
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.
Do you cover Croxley Green and nearby?
Yes. We cover Croxley Green and nearby places including Batchworth, Rickmansworth, Northwood and West Watford. Send your postcode and we will confirm.
What is the price of MVHR in Croxley Green?
Guide prices for Croxley Green use East of England rates: whole-home MVHR retrofit, 1 to 2 bedroom flat is typically £4,675 to £7,300 inc VAT per home. We confirm a fixed price in writing before any work starts.
Send us a floor plan or a few photos of the loft and we can give a first price for your Croxley Green home before we visit.
MVHR near Croxley Green
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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.