Air handling units in County Durham
Air handling unit servicing and repairs in County Durham, booked around your opening hours and priced up front.
- Visit price agreed before we book
- Written report after every visit
- F-gas records updated where required
How much does an air handling unit service cost in County Durham?
In County Durham, expect around £230–£560 per unit, per visit, plus VAT. A typical job (AHU service with filter change) is £230–£560 plus VAT. Nothing beyond the agreed visit goes ahead without your say-so.
An air handling unit (AHU) is a large central unit that filters, heats, cools and moves air through a building's ductwork, often with heat recovery.
County Durham and surrounding areas
We cover all of County Durham, including Darlington, Hartlepool, Stockton-on-Tees, Durham and Chester-le-Street. We quote for premises right across County Durham, including rural and edge-of-town sites.
Postcode districts we cover include DH1, DH7, DL1, DL12, DL17, TS16, TS23 and TS29. If a system in County Durham is old and keeps failing, we will tell you honestly whether repair or replacement makes more sense.
What we do
- Filter changes to the specified grade
- Fan, belt and motor checks
- Coil and drip tray cleaning
- Damper and actuator checks
- Repairs, upgrades and full replacement
Air handling units prices in County Durham
Prices below include our regional adjustment for the North East (6% below the UK guide).
| Item | Guide price (ex VAT) | Inc VAT | Basis |
|---|---|---|---|
| AHU service with filter change | £230–£560 | £276–£672 | per visit |
| Fan / motor replacement | £1,350–£4,650 | £1,620–£5,580 | per fan |
| Full AHU replacement | £14,050–£65,500 | £16,860–£78,600 | per unit |
Ex VAT. Filters are charged at cost for the grade specified.
What happens on a visit in County Durham
Inspect
We record the AHU type, condition, filter grades and controls.
Service
Filters are changed and components cleaned and checked.
Report
Readings and recommendations are reported.
Upgrade or replace
Where needed, we quote for fan upgrades or replacement.
Before you book in County Durham
Hygiene
Drip trays and coils must be kept clean to avoid biological growth.
Shared buildings
In multi-let buildings, roof space, risers and plant areas are often controlled by a managing agent. We work to their permits and method-statement requirements.
Replacement logistics
Large AHU replacements need craneage, road closures and careful programming.
Neighbours and noise
Outdoor units near flats — common above shops — need careful siting so noise at neighbours' windows stays low. We choose positions and quieter units with that in mind.
Typical premises in County Durham
- Warehouses and industrial: cooling for offices, mezzanines, control rooms and temperature-sensitive areas.
In England, systems holding 5 tonnes CO2 equivalent of refrigerant or more fall under GB F-gas rules, with regular leak checks and records; buildings with more than 12 kW of air conditioning in total also need a periodic energy inspection.
Your questions answered
How much does an air handling unit service cost in County Durham?
In County Durham, expect about £230–£560 per unit, per visit, plus VAT. A typical job (AHU service with filter change) is £230–£560 plus VAT. Any parts or repairs are priced before we go ahead.
Do you also cover Tyne and Wear, Northumberland and North Yorkshire?
Yes. Alongside County Durham, we also cover Tyne and Wear, Northumberland and North Yorkshire. Each has its own page with local guide prices.
How often should an AHU be serviced?
Typically every three to six months, depending on use and filter loading.
Can you upgrade old AHU fans?
Yes. EC fan upgrades are a common way to cut energy use without replacing the whole unit.
Get a guide price for County Durham
The visit price is agreed before we book. We reply with a guide price or available dates.