Heat recovery ventilation (MVHR) in County Londonderry
A free survey, a clear specification and a fixed price for heat recovery ventilation in County Londonderry.
- Free site survey and fixed written quote
- Equipment, positions and price set out in writing
- Work planned around your opening hours
How much does heat recovery ventilation cost in County Londonderry?
Budget roughly £4,550–£17,950 per unit installed ex VAT in County Londonderry. For a typical job — heat recovery for a 100–200 m² office — expect £6,395–£13,350 plus VAT. Your exact price is fixed in writing once we have surveyed.
Heat recovery ventilation (MVHR) supplies fresh air and extracts stale air through a unit with a heat exchanger, which transfers much of the heat from the outgoing air to the incoming air.
Our coverage in County Londonderry
We cover all of County Londonderry, including Derry, Coleraine, Limavady and Magherafelt. We quote for premises right across County Londonderry, including rural and edge-of-town sites.
Postcode districts we cover include BT28, BT45, BT46, BT47, BT48, BT49, BT51 and BT52. Heat recovery ventilation in County Londonderry is priced from a written specification that lists the equipment, positions, controls and commissioning.
What you get
- Fresh-air rate and unit sizing
- Heat recovery unit with filters and summer bypass
- Supply and extract ductwork and grilles
- Intake and exhaust terminals
- Controls with CO2 or time control
Local guide prices for County Londonderry
These guide prices are adjusted for Northern Ireland, where labour and access costs run about 8% below the UK guide.
| Item | Guide price (ex VAT) | Inc VAT | Basis |
|---|---|---|---|
| Ceiling-void heat recovery unit (small) | £4,550–£8,250 | £5,460–£9,900 | per unit |
| Floor-standing or roof unit (medium) | £8,250–£17,950 | £9,900–£21,540 | per unit |
| Filter change | £85–£225 | £102–£270 | per unit |
| Annual service | £180–£365 | £216–£438 | per unit |
Ex VAT, supply and install including standard ductwork.
How a job in County Londonderry works
Calculate
Fresh-air needs are calculated per room.
Select
A unit is chosen for air flow, efficiency and space.
Install
Unit, ductwork, terminals and controls are fitted. We keep work areas in County Londonderry screened and tidy at the end of each day.
Balance
Supply and extract air flows are balanced and commissioned.
Things to check in County Londonderry
Space
Units need space in the ceiling void or a plant area with access for filter changes.
Conservation areas
Historic streets and listed buildings in and around County Londonderry are more likely to need planning permission for outdoor units on visible elevations. We check with the council's planning service before work is booked.
Summer bypass
A bypass avoids warming incoming air in summer.
Roof and height work
Flat roofs, high walls and atriums need the right access equipment and edge protection. We plan towers, MEWPs or scaffold before the job, not on the day.
Typical premises in County Londonderry
- Schools and education: classroom cooling, ventilation and IT room cooling, installed in the holidays.
- Gyms and leisure: high-capacity cooling and fresh air for gym floors, studios and changing rooms.
- Hotels and hospitality: quiet bedroom units, public-area cooling and heat recovery for hotels.
In Northern Ireland, systems holding 5 tonnes CO2 equivalent of refrigerant or more fall under EU F-gas rules that apply in Northern Ireland, with regular leak checks and records; buildings with more than 12 kW of air conditioning in total also need a periodic energy inspection.
Common questions from businesses in County Londonderry
How much does heat recovery ventilation cost in County Londonderry?
Guide prices in County Londonderry run from about £4,550 to £17,950 per unit installed, plus VAT. A typical job (heat recovery for a 100–200 m² office) costs £6,395–£13,350 plus VAT. We fix the price in writing after a free survey.
Do you also cover County Tyrone, County Antrim and County Armagh?
Yes. Alongside County Londonderry, we also cover County Tyrone, County Antrim and County Armagh. Each has its own page with local guide prices.
Does MVHR cool a building?
Not really. It moderates incoming air temperature and has a summer bypass, but cooling comes from air conditioning.
How often do filters need changing?
Typically every three to six months, depending on the location and filter grade.
Need heat recovery ventilation in County Londonderry?
Free survey and fixed written quote. We reply with a guide price or to book the survey.