Single-room heat recovery units in West Sussex

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.

Every job in West Sussex gets a written quote before it starts and a commissioning record when it finishes. We cover Crawley, Worthing, Bognor Regis, Littlehampton and Horsham and the villages around them.

Single-room heat recovery in West Sussex at a glance

Area: West Sussex
Towns listed: 16, largest Crawley
Postcode districts: RH7, RH18, BN15, BN42, BN14 and BN15
Price region: South East
Survey: Free survey (UK mainland)

What single-room heat recovery units involves

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. They are popular in flats, in north-facing bedrooms where mould keeps coming back, and in rooms with no route for ducting.

Kitchen-diner

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

Sound-reduced versions

Quieter units for bedrooms.

Single problem room

One unit in the bedroom or kitchen that suffers most.

Guide prices in West Sussex

Single-room heat recovery units guide prices in West Sussex
Work	Guide price
Single-room heat recovery unit through an outside wall (per unit)	£650–£1,200 inc VAT

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

When to get it looked at

A flat with no loft and no ceiling void for ducts
Windows that cannot be left open for security or noise
You want fresh air without cold draughts

Rules in England

In England, ventilation is covered by Part F of the Building Regulations and its guidance, Approved Document F (2021 edition). For homes, it sets minimum extract rates such as 15 litres a second for a bathroom and 30 or 60 for a kitchen, and expects mechanical systems to be airflow-tested.

How the job runs

Survey
Quote
Core and fit
Wire and set up
Hand over

Towns we cover in West Sussex

Questions about single-room heat recovery units in West Sussex

Are prices different in West Sussex?

Our guide prices are adjusted by region. In West Sussex we use South East rates, so single-room heat recovery unit through an outside wall is typically £650 to £1,200 inc VAT per unit.

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.

Do single-room heat recovery units work?

They work well in a room with a condensation problem, supplying fresh air and recovering much of the heat. They are not as efficient as whole-home MVHR but need no ducting.

Is the survey free in West Sussex?

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 West Sussex?

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.