Commercial ventilation, County Londonderry
Commercial heat recovery units in County Londonderry
Plate and rotary heat recovery units that cut the cost of fresh air, across County Londonderry.
- From £6,400 + VAT per unit
- By arrangement

A commercial heat recovery unit supplies fresh air and extracts stale air through a heat exchanger, so the energy already spent heating or cooling the building is passed to the incoming air instead of being thrown away. It is the standard way to ventilate offices, schools, gyms and clinics efficiently.
Our team is based in Great Barr, Birmingham, and we work throughout County Londonderry, from Derry, Coleraine and Limavady. Visits here are by arrangement: we quote travel separately and in writing before you commit.
Commercial heat recovery in County Londonderry at a glance
- Area
- County Londonderry, Northern Ireland
- Towns listed
- 3, largest Derry
- Postcode districts
- BT49, BT47, BT48, BT52 and BT55
- Price region
- Northern Ireland
- Survey
- By arrangement, travel quoted first
What commercial heat recovery units involves
Units use plate exchangers (no mixing of air streams) or rotary wheels (higher efficiency, small transfer of moisture). The right choice depends on the use: a gym or swimming area has very different moisture loads to an office. We size units to the building's occupancy and fresh-air needs, plan the duct connections and controls, and commission the system so the design airflows are actually achieved.
Ceiling-void units
Compact horizontal units for offices and shops.
Floor or roof units
Larger units for schools, gyms and halls.
Demand control
CO2-led control for variable occupancy.
Guide prices in County Londonderry
| Work | Guide price |
|---|---|
| Commercial heat recovery unit, supplied, installed and commissioned (per unit) | £6,400–£22,950 + VAT |
| Small office or shop: heat recovery unit, ductwork and controls (up to about 150 m²) (per system) | £7,300–£15,600 + VAT |
Guide prices using Northern Ireland rates. Prices exclude VAT. A guide price is not a quote: we confirm a fixed price in writing first. Travel is quoted separately for this area.
Common reasons people call
- Opening windows to get fresh air in winter
- High heating bills in well-occupied buildings
- Extract-only systems pulling in cold air
Rules in Northern Ireland
In Northern Ireland, ventilation is covered by the Building Regulations (Northern Ireland) and Technical Booklet K. Northern Ireland has its own Workplace (Health, Safety and Welfare) Regulations (Northern Ireland) 1993 with the same duty to ventilate.
How the job runs
- Survey
- Select
- Install
- Commission
- Hand over
Towns we cover in County Londonderry
Questions about commercial heat recovery units in County Londonderry
Which towns in County Londonderry do you cover?
All of County Londonderry, including Derry, Coleraine and Limavady. If your town is not listed, send the postcode and we will confirm.
Can heat recovery be added to an existing system?
Sometimes. Extract-only systems can often be upgraded to balanced supply and extract with a heat recovery unit.
Will it reduce heating bills?
Recovering heat from extract air usually reduces the heating needed for fresh air, especially in busy buildings with long operating hours.
Are prices different in County Londonderry?
Our guide prices are adjusted by region. In County Londonderry we use Northern Ireland rates, so commercial heat recovery unit, supplied, installed and commissioned is typically £6,400 to £22,950 + VAT per unit.
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.
Other services in County Londonderry
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Answer a few questions for a price range, or send photos and we will come back to you with a written quote.