MVHR installation in Gwent

MVHR in Gwent works the same way as anywhere else: a quiet unit, a duct to every room and a proper airflow test at the end.

Every job in Gwent gets a written quote before it starts and a commissioning record when it finishes. We cover Risca, Gelligaer, Blackwood, Newport and Cwmbran and the villages around them.

MVHR in Gwent at a glance

Area: Gwent, Wales
Towns listed: 17, largest Newport
Postcode districts: NP4, NP20, NP4, NP13, NP13 and NP22
Price region: Wales
Survey: Free survey (UK mainland)

How we do it

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. Filters on both sides keep pollen and dust out of the house and keep the exchanger clean. MVHR works best in a home that is reasonably airtight: a new build, a deep retrofit with insulation and new windows, or a renovation where ceilings are coming down anyway.

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.

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.

Guide prices in Gwent

MVHR installation guide prices in Gwent
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

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

A new build or extension where the SAP or building control needs a ventilation system
Stale air or cooking smells that hang around
Pollen or traffic pollution you want filtered out

Rules in Wales

In Wales, ventilation follows the Welsh Approved Document F rather than the English version, with building control checking notifiable work. We design to the Welsh rates and commission mechanical systems so the results can be recorded.

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 Gwent

Questions about MVHR installation in Gwent

Are prices different in Gwent?

Our guide prices are adjusted by region. In Gwent we use Wales rates, so whole-home MVHR retrofit, 1 to 2 bedroom flat is typically £4,225 to £6,600 inc VAT per home.

Is MVHR worth it in an older house?

It can be, but the payback is best in a home that is fairly airtight. In a draughty house MVHR still gives steady fresh air and condensation control, but a PIV unit or continuous extract fans may solve the same problem for far less. We will tell you which on survey.

How noisy is MVHR?

Correctly sized and balanced MVHR is very quiet on normal speed; most people stop noticing it within days. Noise problems usually come from undersized ducts or a unit running flat out, which is why we design the rates first.

Is the survey free in Gwent?

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.

Which rules apply to ventilation in Gwent?

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.

Book a free survey in Gwent and we will tell you honestly whether MVHR or something simpler suits the house.