Carshalton, Greater London
MVHR installation in Carshalton
Whole-home heat recovery ventilation, designed room by room and airflow-tested at handover. Covering Carshalton and SM1, SM5 and SM6.
- From £5,350 inc VAT per home
- Free survey
We survey Carshalton 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 Carshalton 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 Carshalton at a glance
- Town
- Carshalton, Greater London
- Postcode districts
- SM1, SM5 and SM6
- Nearby
- Wallington (1 mile), St Helier (1 mile) and Sutton (2 miles)
- Price region
- London
- Survey
- Free survey (UK mainland)
How we approach MVHR in Carshalton
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.
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 Carshalton
| 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
- 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 Carshalton
How do I get a price for MVHR in Carshalton?
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.
How much does MVHR cost to install?
A typical retrofit costs £6,450 to £9,450 including VAT for a three-bedroom house, and £4,950 to £7,950 when it goes in during a new build or full renovation. Flats start lower and large detached homes cost more because of the duct runs. We give a fixed price after the survey.
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.
What area around Carshalton do you work in?
All of Greater London. Near Carshalton that includes Wallington, St Helier, Sutton and Belmont.
Do you cover Carshalton and nearby?
Yes. We cover Carshalton and nearby places including Wallington, St Helier, Sutton and Belmont. Send your postcode and we will confirm.
Ask for a Carshalton survey slot and we will bring a room-by-room design and a fixed quote.
MVHR near Carshalton
More services in Carshalton
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.