Carshalton, Greater London
MVHR servicing and filter changes in Carshalton
Annual service, filters, heat exchanger clean and a measured airflow check for existing MVHR. Covering Carshalton and SM1, SM5 and SM6.
- From £175 inc VAT per visit
- Charged visit, price agreed first

A Carshalton MVHR service takes one to two hours and ends with measured airflows, not just new filters.
Work in Carshalton follows the rules for England and finishes with a written record of what was fitted and how it was set up.
MVHR servicing 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
- Charged visit, price agreed first
How we approach MVHR servicing in Carshalton
A service puts that right. We work on most makes of MVHR unit and can supply filters for future changes, so you can do the in-between swaps yourself if you would rather.
Rebalance and recommission
Every valve measured and set again to the design rates, with a new commissioning sheet. Useful after building work or if rooms feel stuffy.
Filter supply
The right filters for your unit, ready to change yourself between visits.
Guide prices in Carshalton
| Work | Guide price |
|---|---|
| MVHR service: filters, unit and heat exchanger clean, airflow check (per visit) | £175–£295 inc VAT |
| Rebalance and recommission an existing MVHR system (per system) | £295–£525 inc VAT |
| MVHR or MEV commissioning test, every terminal measured and recorded (per system) | £295–£475 inc VAT |
London rates shown. Prices include VAT at 20%. The fixed price is confirmed in writing after we have seen the job.
When to get it looked at
- Water dripping from the unit or ducts
- The unit filter warning is showing
- Condensation is back on windows that used to stay dry
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
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.
Do I need to be at home for the service?
Someone needs to let us in and be there when we measure the valves, which means visiting every room. A service usually takes one to two hours.
My new build MVHR has never been serviced. Is that a problem?
It is very common and usually fixable. Builders often hand over without explaining filter changes, so the first service often finds filters that are badly blocked. We clean everything and reset the airflows.
What is the price of an MVHR service in Carshalton?
Guide prices for Carshalton use London rates: MVHR service: filters, unit and heat exchanger clean, airflow check is typically £175 to £295 inc VAT per visit. We confirm a fixed price in writing before any work starts.
Is the survey free in Carshalton?
This is a charged visit because it is servicing, testing or repair work. We tell you the cost before booking. Surveys for new installations on the UK mainland are free.
Book an MVHR service in Carshalton and tell us the make of unit if you know it.
MVHR servicing 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.