Chelsfield, Kent
MVHR installation in Chelsfield
Whole-home heat recovery ventilation, designed room by room and airflow-tested at handover. Covering Chelsfield and BR5, BR6 and BR8.
- From £4,900 inc VAT per home
- Free survey

We survey Chelsfield homes for MVHR before quoting, because the duct routes decide the price more than the unit does.
Chelsfield is about 120 miles from our base in Great Barr, Birmingham. We book Chelsfield visits by appointment and confirm the date in writing. We survey first, free of charge for new installations on the mainland, then send a fixed written quote.
MVHR in Chelsfield at a glance
- Town
- Chelsfield, Kent
- Postcode districts
- BR5, BR6 and BR8
- Nearby
- Orpington (2 miles), Swanley (3 miles) and Bickley (5 miles)
- Price region
- South East
- Survey
- Free survey (UK mainland)
MVHR for Chelsfield homes
A single unit, usually in the loft, a utility cupboard or a garage, runs all the time at a low, quiet speed. Insulated ducts carry extract air from the wet rooms and supply air to the habitable rooms.
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 Chelsfield
| Work | Guide price |
|---|---|
| Whole-home MVHR retrofit, 1 to 2 bedroom flat (per home) | £4,900–£7,650 inc VAT |
| 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 |
These ranges use our South East rates. Prices include VAT at 20%. You get a fixed written price before any work is booked.
Common reasons people call
- 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). 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 Chelsfield
Is the survey free in Chelsfield?
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 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.
How do I get a price for MVHR in Chelsfield?
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.
What area around Chelsfield do you work in?
All of Kent. Near Chelsfield that includes Orpington, Swanley, Bickley and Chislehurst.
Book a free survey in Chelsfield and we will tell you honestly whether MVHR or something simpler suits the house.
MVHR near Chelsfield
More services in Chelsfield
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.