Ashtead, Surrey
MVHR installation in Ashtead
Whole-home heat recovery ventilation, designed room by room and airflow-tested at handover. Covering Ashtead and KT18, KT21 and KT22.
- From £4,900 inc VAT per home
- Free survey

For homeowners in Ashtead, MVHR is usually part of a bigger job: new windows, insulation, a loft conversion or an extension.
Customers in Ashtead can get a guide price online in a couple of minutes. It uses South East rates, which is what we would charge for the same job anywhere in Surrey. Surveys for new installations are free on the UK mainland, with a written quote afterwards.
MVHR in Ashtead at a glance
- Town
- Ashtead, Surrey
- Postcode districts
- KT18, KT21 and KT22
- Nearby
- Leatherhead (2 miles), Epsom (2 miles) and Ewell (4 miles)
- Price region
- South East
- Survey
- Free survey (UK mainland)
How we approach MVHR in Ashtead
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.
Radial semi-rigid ducting
One small duct per valve from a manifold. Quieter and easier to balance than branched rigid duct in most homes.
Summer bypass and boost controls
Bypass lets cooler night air in without heat recovery; humidity or switch boost for showers and cooking.
Guide prices in Ashtead
| 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.
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
English building work follows Approved Document F (2021 edition) for ventilation rates, installation and commissioning. It sets extract rates for kitchens, bathrooms and utilities and asks for mechanical ventilation to be commissioned and recorded.
Questions from Ashtead
How do I get a price for MVHR in Ashtead?
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.
Is MVHR worth it in an older house?
It can be, but the payback is best in a home that is fairly airtight. In a draughty house MVHR still gives steady fresh air and condensation control, but a PIV unit or continuous extract fans may solve the same problem for far less. We will tell you which on survey.
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.
What area around Ashtead do you work in?
All of Surrey. Near Ashtead that includes Leatherhead, Epsom, Ewell and Chessington.
Do you cover Ashtead and nearby?
Yes. We cover Ashtead and nearby places including Leatherhead, Epsom, Ewell and Chessington. Send your postcode and we will confirm.
Send us a floor plan or a few photos of the loft and we can give a first price for your Ashtead home before we visit.
MVHR near Ashtead
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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.