Air handling units in Farnham
Air handling unit servicing and repairs in Farnham, with the visit price agreed before we come and a written report after.
- 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 Farnham?
Typical prices in Farnham run from £280 to £685 per unit, per visit before VAT; a typical job (AHU service with filter change) is usually £280–£685 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.
Where we work around Farnham
Farnham has a compact centre of shops, cafés and offices, with business units on its outskirts. Woking is about 20 km away.
We work across Farnham's postcode districts, including CM23, DT11, GU9, HG5 and IP17. We also cover Aldershot, Fleet and Farnborough, all within easy reach of Farnham. For air handling unit servicing and repairs in Farnham, roof and high-level access is planned in advance, so the visit is not wasted waiting for a tower or a key.
What the job covers
- Filter changes to the specified grade
- Fan, belt and motor checks
- Damper and actuator checks
- Heat recovery device checks
- Repairs, upgrades and full replacement
Air handling units prices in Farnham
These guide prices are adjusted for the South East, where labour and access costs run about 15% above the UK guide.
| Item | Guide price (ex VAT) | Inc VAT | Basis |
|---|---|---|---|
| AHU service with filter change | £280–£685 | £336–£822 | per visit |
| Fan / motor replacement | £1,650–£5,695 | £1,980–£6,834 | per fan |
| Full AHU replacement | £17,195–£79,995 | £20,634–£95,994 | per unit |
Ex VAT. Filters are charged at cost for the grade specified.
The visit, step by step
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.
Local points to consider
Filters
Filter grades should match the original design or current guidance for the building.
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.
Replacement logistics
Large AHU replacements need craneage, road closures and careful programming.
Leased premises
If your Farnham premises are leased, the landlord's written consent is usually needed for external units, wall penetrations and roof access. We provide drawings and data sheets for the request.
Typical premises in Farnham
- Warehouses and industrial: cooling for offices, mezzanines, control rooms and temperature-sensitive areas.
Compliance in England: refrigerant work falls under GB F-gas rules, and buildings with more than 12 kW of air conditioning in total need a periodic energy inspection (often called TM44).
Your questions answered
How much does an air handling unit service cost in Farnham?
In Farnham, expect about £280–£685 per unit, per visit, plus VAT. A typical job (AHU service with filter change) is £280–£685 plus VAT. Any parts or repairs are priced before we go ahead.
Do you also cover Aldershot, Fleet and Farnborough?
Yes. Alongside Farnham, we also cover Aldershot, Fleet and Farnborough. Each has its own page with local guide prices.
Which postcodes do you cover in Farnham?
All of them, including CM23, DT11, GU9 and HG5. Give us your postcode when you enquire and we will confirm the visit details.
Do you handle crane lifts?
Yes, we plan craneage, permits and lifting for replacements.
Can you upgrade old AHU fans?
Yes. EC fan upgrades are a common way to cut energy use without replacing the whole unit.
Need air handling unit servicing and repairs in Farnham?
The visit price is agreed before we book. We reply with a guide price or available dates.