MVHR servicing and filter changes in South Glamorgan

A South Glamorgan MVHR service takes one to two hours and ends with measured airflows, not just new filters.

Every job in South Glamorgan gets a written quote before it starts and a commissioning record when it finishes. We cover Whitchurch, Rhiwbina, Cardiff, Barry and Penarth and the villages around them.

MVHR servicing in South Glamorgan at a glance

Area: South Glamorgan, Wales
Towns listed: 6, largest Cardiff
Postcode districts: CF14, CF15, CF10, CF11, CF62 and CF63
Price region: Wales
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. A service puts that right.

Fault finding

Noisy fans, error codes, condensate leaks and boost controls that stopped working.

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 South Glamorgan

MVHR servicing and filter changes guide prices in South Glamorgan
Work	Guide price
MVHR service: filters, unit and heat exchanger clean, airflow check (per visit)	£140–£235 inc VAT
Rebalance and recommission an existing MVHR system (per system)	£235–£425 inc VAT
MVHR or MEV commissioning test, every terminal measured and recorded (per system)	£235–£375 inc VAT

These ranges use our Wales rates. Prices include VAT at 20%. You get a fixed written price before any work is booked.

When to get it looked at

The unit filter warning is showing
Condensation is back on windows that used to stay dry
Bathrooms take longer to clear after a shower

Rules in Wales

Wales has its own Part F ventilation guidance, published by the Welsh Government, and work is checked by building control. Extract rates and commissioning are checked against the Welsh guidance on every job.

How the job runs

Book a visit
Strip and clean
Checks
Measure
Report

Towns we cover in South Glamorgan

Questions about MVHR servicing and filter changes in South Glamorgan

Is the survey free in South Glamorgan?

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 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.

How often should MVHR filters be changed?

Most manufacturers recommend changing MVHR filters every 6 to 12 months, and more often near busy roads or building sites. A full service once a year is a sensible minimum.

Which rules apply to ventilation in South Glamorgan?

In Wales, the Welsh Government's own Approved Document F (2022 edition) applies to ventilation in homes, with a new edition taking effect on 4 March 2027. Rented homes must be fit for human habitation under the Renting Homes (Wales) Act 2016, and workplaces must be ventilated under the Workplace (Health, Safety and Welfare) Regulations 1992.

Which towns in South Glamorgan do you cover?

All of South Glamorgan, including Whitchurch, Rhiwbina, Cardiff, Barry and Penarth. If your town is not listed, send the postcode and we will confirm.

If the system in your South Glamorgan home needs more than a service, we will explain why and price it before doing anything.