Air handling units in Chelmsford
Air handling unit servicing and repairs in Chelmsford, 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 Chelmsford?
In Chelmsford, expect around £265–£645 per unit, per visit, plus VAT. A typical job (AHU service with filter change) is £265–£645 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.
Chelmsford and surrounding areas
Chelmsford is a large town in Essex, with a busy centre, retail parks and industrial estates on its edges. Basildon is about 19 km away.
We work across Chelmsford's postcode districts, including CM1 and CM99. We also cover Billericay, Witham and Maldon, all within easy reach of Chelmsford. If a system in Chelmsford is old and keeps failing, we will tell you honestly whether repair or replacement makes more sense.
What the job covers
- Fan, belt and motor checks
- Coil and drip tray cleaning
- Damper and actuator checks
- Heat recovery device checks
- Repairs, upgrades and full replacement
Air handling units prices in Chelmsford
Prices below include our regional adjustment for the East of England (8% above the UK guide).
| Item | Guide price (ex VAT) | Inc VAT | Basis |
|---|---|---|---|
| AHU service with filter change | £265–£645 | £318–£774 | per visit |
| Fan / motor replacement | £1,550–£5,350 | £1,860–£6,420 | per fan |
| Full AHU replacement | £16,150–£74,995 | £19,380–£89,994 | per unit |
Ex VAT. Filters are charged at cost for the grade specified.
How a visit in Chelmsford 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.
What to think about in Chelmsford
Replacement logistics
Large AHU replacements need craneage, road closures and careful programming.
Access and parking
Town-centre jobs in Chelmsford often come down to access — loading restrictions, parking for the van and getting equipment onto a roof. We check this at survey and plan deliveries around it.
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 Chelmsford
- Warehouses and industrial: cooling for offices, mezzanines, control rooms and temperature-sensitive areas.
Two rules matter for most businesses in England: GB F-gas rules (leak checks from 5 tonnes CO2e) and the periodic energy inspection for more than 12 kW of air conditioning.
Common questions from businesses in Chelmsford
How much does an air handling unit service cost in Chelmsford?
In Chelmsford, expect about £265–£645 per unit, per visit, plus VAT. A typical job (AHU service with filter change) is £265–£645 plus VAT. Any parts or repairs are priced before we go ahead.
Do you also cover Billericay, Witham and Maldon?
Yes. Alongside Chelmsford, we also cover Billericay, Witham and Maldon. Each has its own page with local guide prices.
Which postcodes do you cover in Chelmsford?
All of them, including CM1 and CM99. 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.
How often should an AHU be serviced?
Typically every three to six months, depending on use and filter loading.
Get a guide price for Chelmsford
The visit price is agreed before we book. We reply with a guide price or available dates.