Air handling units in Dorset
Air handling unit servicing and repairs in Dorset, 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 Dorset?
Typical prices in Dorset run from £255 to £620 per unit, per visit before VAT; a typical job (AHU service with filter change) is usually £255–£620 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.
Dorset and surrounding areas
We cover all of Dorset, including Bournemouth, Poole, Weymouth and Christchurch. Each town below has its own page with local guide prices.
Postcode districts we cover include BA22, BH5, BH11, BH17, BH23, DT4, DT10 and TA20. Service and repair visits in Dorset are booked around your opening hours, with the price agreed before we come.
What is included
- Filter changes to the specified grade
- Fan, belt and motor checks
- Coil and drip tray cleaning
- Heat recovery device checks
- Repairs, upgrades and full replacement
Local guide prices for Dorset
Prices below include our regional adjustment for the South West (4% above the UK guide).
| Item | Guide price (ex VAT) | Inc VAT | Basis |
|---|---|---|---|
| AHU service with filter change | £255–£620 | £306–£744 | per visit |
| Fan / motor replacement | £1,500–£5,150 | £1,800–£6,180 | per fan |
| Full AHU replacement | £15,550–£72,500 | £18,660–£87,000 | per unit |
Ex VAT. Filters are charged at cost for the grade specified.
How a visit in Dorset 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 Dorset
Replacement logistics
Large AHU replacements need craneage, road closures and careful programming.
Leased premises
If your Dorset 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.
Filters
Filter grades should match the original design or current guidance for the building.
Access and parking
Town-centre jobs in Dorset 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.
Types of premises we cover in Dorset
- 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).
Questions about air handling units in Dorset
How much does an air handling unit service cost in Dorset?
In Dorset, expect about £255–£620 per unit, per visit, plus VAT. A typical job (AHU service with filter change) is £255–£620 plus VAT. Any parts or repairs are priced before we go ahead.
Do you also cover the Isle of Wight, Hampshire and Wiltshire?
Yes. Alongside Dorset, we also cover the Isle of Wight, Hampshire and Wiltshire. Each has its own page with local guide prices.
How long do air handling units last?
Commonly 20 years or more with good maintenance, though fans and controls may need replacing sooner.
Can you upgrade old AHU fans?
Yes. EC fan upgrades are a common way to cut energy use without replacing the whole unit.
Talk to us about your premises in Dorset
The visit price is agreed before we book. We reply with a guide price or available dates.