MVHR servicing and filter changes in Thornbury

Many Thornbury new builds have MVHR in the loft that nobody told the owners how to look after.

For MVHR servicing and filter changes in Thornbury, send us the postcode, a few photos and a rough idea of the rooms involved. We will tell you what we would fit and roughly what it costs before arranging a visit.

MVHR servicing in Thornbury at a glance

Town: Thornbury, Gloucestershire
Postcode districts: BS32, BS35 and GL12
Nearby: Stoke Gifford (6 miles), Yate (6 miles) and Mangotsfield (8 miles)
Price region: South West
Survey: Charged visit, price agreed first

How we approach MVHR servicing in Thornbury

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.

Annual service

Filters, exchanger and fan clean, drain check, controls and boost checked, airflow spot-checked at the valves.

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.

Guide prices in Thornbury

MVHR servicing and filter changes guide prices in Thornbury
Work	Guide price
MVHR service: filters, unit and heat exchanger clean, airflow check (per visit)	£150–£255 inc VAT
Rebalance and recommission an existing MVHR system (per system)	£255–£465 inc VAT
MVHR or MEV commissioning test, every terminal measured and recorded (per system)	£255–£410 inc VAT

South West rates shown. Prices include VAT at 20%. The fixed price is confirmed in writing after we have seen the job.

Common reasons people call

You have moved into a new build and nobody has serviced it
Water dripping from the unit or ducts
The unit filter warning is showing

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 Thornbury

What is the price of an MVHR service in Thornbury?

Guide prices for Thornbury use South West rates: MVHR service: filters, unit and heat exchanger clean, airflow check is typically £150 to £255 inc VAT per visit. We confirm a fixed price in writing before any work starts.

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.

Is the survey free in Thornbury?

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.

How do I get a price for an MVHR service in Thornbury?

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.

We can also set up a yearly reminder so your Thornbury system is never left running on clogged filters.