MVHR installation in West Glamorgan

If you are making a West Glamorgan house warmer and tighter, MVHR keeps the air fresh without throwing the heat away.

West Glamorgan has every kind of building, from old terraces to new estates and business parks, and every job is designed around the building in front of us, not a standard kit.

MVHR in West Glamorgan at a glance

Area: West Glamorgan, Wales
Towns listed: 6, largest Swansea
Postcode districts: SA10, SA7, SA11, SA2, SA4 and SA6
Price region: Wales
Survey: Free survey (UK mainland)

What MVHR installation involves

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. Inside the unit the two airflows pass each other across a heat exchanger without mixing, so the incoming fresh air picks up heat from the outgoing air.

Summer bypass and boost controls

Bypass lets cooler night air in without heat recovery; humidity or switch boost for showers and cooking.

Retrofit in an occupied home

Ducts routed through the loft and down through cupboards or boxed corners. Most semis are done in 3 to 5 days.

New build or full renovation

Ducts go in at first fix before plasterboard, which is the cheapest and neatest time to fit MVHR.

Guide prices in West Glamorgan

MVHR installation guide prices in West Glamorgan
Work	Guide price
Whole-home MVHR retrofit, 1 to 2 bedroom flat (per home)	£4,225–£6,600 inc VAT
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

Guide prices using Wales rates. Prices include VAT at 20%. A guide price is not a quote: we confirm a fixed price in writing first.

Signs it is time to call us

You are insulating, re-windowing or making the house more airtight
A new build or extension where the SAP or building control needs a ventilation system
Stale air or cooking smells that hang around

Rules in Wales

In Wales, ventilation follows the Welsh Approved Document F rather than the English version, with building control checking notifiable work. Extract rates and commissioning are checked against the Welsh guidance on every job.

How the job runs

Survey and room schedule
Design and airflow rates
First fix
Second fix and valves
Commission and hand over

Towns we cover in West Glamorgan

Questions about MVHR installation in West Glamorgan

Is the survey free in West Glamorgan?

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 often does MVHR need servicing?

Filters usually need changing every 6 to 12 months, and a full service with a clean and airflow check once a year keeps the system efficient. Clogged filters are the most common reason MVHR stops working properly.

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.

Which rules apply to ventilation in West 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 West Glamorgan do you cover?

All of West Glamorgan, including Gorseinon, Clydach, Ystalyfera, Swansea and Neath. If your town is not listed, send the postcode and we will confirm.

Every MVHR job in West Glamorgan finishes with a measured commissioning sheet, so you know the system does what it should.