Single-room heat recovery units in Dorset

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 Dorset, send the postcode and a few photos and we will tell you what we would recommend. Towns we cover include Canford Heath, Bournemouth, Poole, Weymouth and Christchurch.

Single-room heat recovery in Dorset at a glance

Area: Dorset
Towns listed: 14, largest Bournemouth
Postcode districts: BH19, BH15, BH17, BH1, BH2 and BH14
Price region: South West
Survey: Free survey (UK mainland)

What single-room heat recovery units involves

Either way, the room gets fresh air without the heat loss of an open window. They are popular in flats, in north-facing bedrooms where mould keeps coming back, and in rooms with no route for ducting. Two alternating units can work as a pair across a flat.

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.

Kitchen-diner

A higher-rated unit sized for cooking moisture alongside an extract hood.

Guide prices in Dorset

Single-room heat recovery units guide prices in Dorset
Work	Guide price
Single-room heat recovery unit through an outside wall (per unit)	£625–£1,150 inc VAT

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

Common reasons people call

Windows that cannot be left open for security or noise
You want fresh air without cold draughts
Whole-home MVHR is not practical or affordable

Rules in England

English building work follows Approved Document F (2021 edition) for ventilation rates, installation and commissioning. It sets extract rates for kitchens, bathrooms and utilities and asks for mechanical ventilation to be commissioned and recorded.

How the job runs

Survey
Quote
Core and fit
Wire and set up
Hand over

Towns we cover in Dorset

Questions about single-room heat recovery units in Dorset

Is the survey free in Dorset?

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.

Will it work through a cavity wall?

Yes. The sleeve passes through both leaves and the cavity is sealed around it.

How much does a single-room heat recovery unit cost?

A single-room heat recovery unit usually costs £595 to £1,095 including VAT supplied and fitted, depending on the model and the wall.

Which rules apply to ventilation in Dorset?

In England, ventilation in new and altered homes is covered by Approved Document F of the Building Regulations. Landlords also have duties under the Housing Health and Safety Rating System, and workplaces must be ventilated under the Workplace (Health, Safety and Welfare) Regulations 1992.

Which towns in Dorset do you cover?

All of Dorset, including Canford Heath, Bournemouth, Poole, Weymouth and Christchurch. If your town is not listed, send the postcode and we will confirm.