Home ventilation, County Londonderry
Single-room heat recovery units in County Londonderry
Through-wall heat recovery for one problem room, without ducting the whole house, across County Londonderry.
- From £550 inc VAT per unit
- By arrangement
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.
County Londonderry has every kind of building, from old terraces to new estates and business parks, and every job is designed around the building in front of us, not a standard kit.
Single-room heat recovery in County Londonderry at a glance
- Area
- County Londonderry, Northern Ireland
- Towns listed
- 3, largest Derry
- Postcode districts
- BT55, BT49, BT47, BT48 and BT52
- Price region
- Northern Ireland
- Survey
- By arrangement, travel quoted first
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.
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 County Londonderry
| Work | Guide price |
|---|---|
| Single-room heat recovery unit through an outside wall (per unit) | £550–£1,000 inc VAT |
These ranges use our Northern Ireland rates. Prices include VAT at 20%. You get a fixed written price before any work is booked. Travel is quoted separately for this area.
Signs it is time to call us
- Whole-home MVHR is not practical or affordable
- A room with only one outside wall
- Mould in one bedroom that comes back every winter
Rules in Northern Ireland
Northern Ireland has its own building regulations, with ventilation guidance in Technical Booklet K. Extract rates follow the Northern Ireland guidance and are measured at handover.
How the job runs
- Survey
- Quote
- Core and fit
- Wire and set up
- Hand over
Towns we cover in County Londonderry
Questions about single-room heat recovery units in County Londonderry
Is the survey free in County Londonderry?
Visits here are by arrangement. Because of the ferry or long travel involved, we quote travel separately and in writing before you commit, and we can often combine visits to keep the cost down.
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.
How noisy are they?
On low speed most units are quiet enough for bedrooms; sound-reduced models are available. Boost speed is more noticeable.
Which rules apply to ventilation in County Londonderry?
In Northern Ireland, ventilation is covered by Technical Booklet K of the Building Regulations (Northern Ireland). Workplaces must be ventilated under the Workplace (Health, Safety and Welfare) Regulations (Northern Ireland) 1993.
Which towns in County Londonderry do you cover?
All of County Londonderry, including Coleraine, Limavady and Derry. If your town is not listed, send the postcode and we will confirm.
Other services in County Londonderry
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.