Guildford, Surrey
MVHR servicing and filter changes in Guildford
Annual service, filters, heat exchanger clean and a measured airflow check for existing MVHR. Covering Guildford and GU1, GU2 and GU4.
- From £160 inc VAT per visit
- Charged visit, price agreed first

Many Guildford new builds have MVHR in the loft that nobody told the owners how to look after.
We cover Guildford and the surrounding GU1, GU2 and GU4 postcodes as part of our work across Surrey. Visits for this work are charged, with the price agreed before we arrive.
MVHR servicing in Guildford at a glance
- Town
- Guildford, Surrey
- Postcode districts
- GU1, GU2 and GU4
- Nearby
- Godalming (4 miles), Woking (6 miles) and Cranleigh (8 miles)
- Price region
- South East
- Survey
- Charged visit, price agreed first
What the work involves
Over a year or two the filters clog, the fans work harder, airflow at the valves drops and the house slowly goes back to condensation and stale air. It is common for a system to go years without a filter change after the builder hands over.
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 Guildford
| Work | Guide price |
|---|---|
| MVHR service: filters, unit and heat exchanger clean, airflow check (per visit) | £160–£270 inc VAT |
| Rebalance and recommission an existing MVHR system (per system) | £270–£490 inc VAT |
| MVHR or MEV commissioning test, every terminal measured and recorded (per system) | £270–£435 inc VAT |
Guide prices using South East rates. Prices include VAT at 20%. A guide price is not a quote: we confirm a fixed price in writing first.
Common reasons people call
- Condensation is back on windows that used to stay dry
- Bathrooms take longer to clear after a shower
- The unit is louder than it used to be
Rules that apply in England
English building work follows Approved Document F (2021 edition) for ventilation rates, installation and commissioning. 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 Guildford
Do you cover Guildford and nearby?
Yes. We cover Guildford and nearby places including Godalming, Woking, Cranleigh and Aldershot. Send your postcode and we will confirm.
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.
How much does an MVHR service cost?
An MVHR service usually costs £145 to £245 including VAT, depending on the unit and how easy it is to reach. Filters are included for most common units; rebalancing every valve is priced separately at £245 to £445.
What is the price of an MVHR service in Guildford?
Guide prices for Guildford use South East rates: MVHR service: filters, unit and heat exchanger clean, airflow check is typically £160 to £270 inc VAT per visit. We confirm a fixed price in writing before any work starts.
Is the survey free in Guildford?
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.
Send a photo of your unit label and we will confirm the price for your Guildford visit.
MVHR servicing near Guildford
More services in Guildford
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Answer a few questions for a price range, or send photos and we will come back to you with a written quote.