Air handling units in Harrow
Air handling unit servicing and repairs in Harrow, 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 Harrow?
Guide price in Harrow: £315–£760 per unit, per visit ex VAT, with a typical job (AHU service with filter change) at £315–£760 plus VAT. Parts and repairs are only done once you approve the price.
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.
Harrow and surrounding areas
In Harrow, commercial premises range from street-level shops and restaurants to offices in converted and modern buildings, many with managing agents and landlord consents to work through.
We work across Harrow's postcode districts, including HA2. We also cover Wealdstone, Brent and Wembley, all within easy reach of Harrow. Service and repair visits in Harrow are booked around your opening hours, with the price agreed before we come.
Included as standard
- Filter changes to the specified grade
- Fan, belt and motor checks
- Damper and actuator checks
- Heat recovery device checks
- Repairs, upgrades and full replacement
Prices in Harrow
Prices below include our regional adjustment for London (28% above the UK guide).
| Item | Guide price (ex VAT) | Inc VAT | Basis |
|---|---|---|---|
| AHU service with filter change | £315–£760 | £378–£912 | per visit |
| Fan / motor replacement | £1,850–£6,350 | £2,220–£7,620 | per fan |
| Full AHU replacement | £19,150–£88,995 | £22,980–£106,794 | per unit |
Ex VAT. Filters are charged at cost for the grade specified.
How a visit in Harrow works
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.
Points to plan for in Harrow
Hygiene
Drip trays and coils must be kept clean to avoid biological growth.
Conservation areas
Historic streets and listed buildings in and around Harrow are more likely to need planning permission for outdoor units on visible elevations. We check with the local planning authority before work is booked.
Energy
Fan upgrades and better controls can cut energy use significantly on older units.
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.
Types of premises we cover in Harrow
- 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 Harrow?
In Harrow, expect about £315–£760 per unit, per visit, plus VAT. A typical job (AHU service with filter change) is £315–£760 plus VAT. Any parts or repairs are priced before we go ahead.
Do you also cover Wealdstone, Brent and Wembley?
Yes. Alongside Harrow, we also cover Wealdstone, Brent and Wembley. Each has its own page with local guide prices.
Which postcodes do you cover in Harrow?
All of them, including HA2. Give us your postcode when you enquire and we will confirm the visit details.
Can you upgrade old AHU fans?
Yes. EC fan upgrades are a common way to cut energy use without replacing the whole unit.
How often should an AHU be serviced?
Typically every three to six months, depending on use and filter loading.
Get a guide price for Harrow
The visit price is agreed before we book. We reply with a guide price or available dates.