Single-room heat recovery units in Gwent

A single-room heat recovery unit is a compact through-wall fan that supplies and extracts air for one room while recovering much of the heat from the outgoing air. It is the answer when one bedroom, kitchen or flat has a condensation problem but whole-home ducting is not practical.

If you are anywhere in Gwent, send the postcode and a few photos and we will tell you what we would recommend. Towns we cover include Caerphilly, Risca, Gelligaer, Blackwood and Newport.

Single-room heat recovery in Gwent at a glance

Area: Gwent, Wales
Towns listed: 17, largest Newport
Postcode districts: NP16, NP26, NP4, NP13, CF82 and NP11
Price region: Wales
Survey: Free survey (UK mainland)

What the work involves

Units fit into a cored hole in an outside wall. Some alternate direction every minute or so, storing heat in a ceramic core; others run supply and extract side by side through a small exchanger. Either way, the room gets fresh air without the heat loss of an open window.

Sound-reduced versions

Quieter units for bedrooms.

Single problem room

One unit in the bedroom or kitchen that suffers most.

Paired units in a flat

Two alternating units working together across living spaces.

Guide prices in Gwent

Single-room heat recovery units guide prices in Gwent
Work	Guide price
Single-room heat recovery unit through an outside wall (per unit)	£575–£1,050 inc VAT

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

Signs it is time to call us

A room with only one outside wall
Mould in one bedroom that comes back every winter
A flat with no loft and no ceiling void for ducts

Rules in Wales

Wales has its own Part F ventilation guidance, published by the Welsh Government, and work is checked by building control. We design to the Welsh rates and commission mechanical systems so the results can be recorded.

How the job runs

Survey
Quote
Core and fit
Wire and set up
Hand over

Towns we cover in Gwent

Questions about single-room heat recovery units in Gwent

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.

How noisy are they?

On low speed most units are quiet enough for bedrooms; sound-reduced models are available. Boost speed is more noticeable.

Can one unit do a whole flat?

One unit treats one room well. For a whole flat, two paired units or a wall-mounted PIV unit with good extract fans is usually better.

Which towns in Gwent do you cover?

All of Gwent, including Caerphilly, Risca, Gelligaer, Blackwood and Newport. If your town is not listed, send the postcode and we will confirm.

Are prices different in Gwent?

Our guide prices are adjusted by region. In Gwent we use Wales rates, so single-room heat recovery unit through an outside wall is typically £575 to £1,050 inc VAT per unit.