Cardiff, South Glamorgan
MVHR installation in Cardiff
Whole-home heat recovery ventilation, designed room by room and airflow-tested at handover. Covering Cardiff and CF10, CF11 and CF24.
- From £4,225 inc VAT per home
- Free survey

We survey Cardiff homes for MVHR before quoting, because the duct routes decide the price more than the unit does.
For MVHR installation in Cardiff, 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 in Cardiff at a glance
- Town
- Cardiff, South Glamorgan
- Postcode districts
- CF10, CF11 and CF24
- Nearby
- Whitchurch (3 miles), Penarth (3 miles) and Rhiwbina (4 miles)
- Price region
- Wales
- Survey
- Free survey (UK mainland)
MVHR for Cardiff homes
A single unit, usually in the loft, a utility cupboard or a garage, runs all the time at a low, quiet speed. Insulated ducts carry extract air from the wet rooms and supply air to the habitable rooms.
Radial semi-rigid ducting
One small duct per valve from a manifold. Quieter and easier to balance than branched rigid duct in most homes.
Summer bypass and boost controls
Bypass lets cooler night air in without heat recovery; humidity or switch boost for showers and cooking.
Guide prices in Cardiff
| Work | Guide price |
|---|---|
| Whole-home MVHR retrofit, 3 bedroom house (per home) | £6,150–£9,000 inc VAT |
| Whole-home MVHR retrofit, 4 to 5 bedroom house (per home) | £8,500–£13,250 inc VAT |
| MVHR in a new build or full renovation (fitted at first fix), 3 to 4 bedrooms (per home) | £4,700–£7,550 inc VAT |
Wales rates shown. Prices include VAT at 20%. The fixed price is confirmed in writing after we have seen the job.
Common reasons people call
- Pollen or traffic pollution you want filtered out
- Condensation on windows every morning in winter
- Mould coming back in bedrooms or bathrooms after cleaning
Rules that apply 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.
Questions from Cardiff
What is the price of MVHR in Cardiff?
Guide prices for Cardiff use Wales rates: whole-home MVHR retrofit, 1 to 2 bedroom flat is typically £4,225 to £6,600 inc VAT per home. We confirm a fixed price in writing before any work starts.
Can MVHR cool the house in summer?
MVHR is not air conditioning, but a summer bypass lets cooler night air in without warming it, which helps take the edge off hot rooms. For real cooling you would need a separate system.
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 the survey free in Cardiff?
For new installations on the UK mainland, yes. The survey is free and the quote that follows is fixed and in writing. Servicing, testing and repair visits are charged, and we confirm the cost before booking.
How do I get a price for MVHR in Cardiff?
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.
Send us a floor plan or a few photos of the loft and we can give a first price for your Cardiff home before we visit.
MVHR near Cardiff
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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.