Home ventilation, Cornwall
Single-room heat recovery units in Cornwall
Through-wall heat recovery for one problem room, without ducting the whole house, across Cornwall.
- From £625 inc VAT per unit
- Free survey

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.
Our team is based in Great Barr, Birmingham, and we work throughout Cornwall, from Redruth, Falmouth, St Austell, Truro and Camborne. We survey first, free of charge for new installations on the mainland, then send a fixed written quote.
Single-room heat recovery in Cornwall at a glance
- Area
- Cornwall
- Towns listed
- 10, largest Redruth
- Postcode districts
- TR14, TR15, TR3, TR10, PL24 and PL25
- Price region
- South West
- Survey
- Free survey (UK mainland)
How we do it
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 Cornwall
| Work | Guide price |
|---|---|
| Single-room heat recovery unit through an outside wall (per unit) | £625–£1,150 inc VAT |
South West 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 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 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 Cornwall
Questions about single-room heat recovery units in Cornwall
Which rules apply to ventilation in Cornwall?
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.
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 Cornwall do you cover?
All of Cornwall, including Redruth, Falmouth, St Austell, Truro and Camborne. If your town is not listed, send the postcode and we will confirm.
Are prices different in Cornwall?
Our guide prices are adjusted by region. In Cornwall we use South West rates, so single-room heat recovery unit through an outside wall is typically £625 to £1,150 inc VAT per unit.
Other services in Cornwall
Get a guide price in two minutes
Answer a few questions for a price range, or send photos and we will come back to you with a written quote.