Air handling units in St Albans
Air handling unit servicing and repairs in St Albans, 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 St Albans?
Typical prices in St Albans run from £265 to £645 per unit, per visit before VAT; a typical job (AHU service with filter change) is usually £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.
Covering St Albans and nearby
St Albans is a large town in Hertfordshire, with a busy centre, retail parks and industrial estates on its edges. Watford is about 11 km away.
We cover every St Albans postcode, including AL1 and AL3. We also cover Harpenden, Hatfield and Hemel Hempstead, all within easy reach of St Albans. Businesses across Hertfordshire can combine servicing with any F-gas leak checks their systems need, which saves a separate attendance.
What is included
- Fan, belt and motor checks
- Coil and drip tray cleaning
- Damper and actuator checks
- Heat recovery device checks
- Repairs, upgrades and full replacement
Local guide prices for St Albans
These guide prices are adjusted for the East of England, where labour and access costs run about 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.
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.
Points to plan for in St Albans
Energy
Fan upgrades and better controls can cut energy use significantly on older units.
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.
Hygiene
Drip trays and coils must be kept clean to avoid biological growth.
Working hours
Most St Albans businesses prefer noisy work outside trading hours. Early starts, evenings and weekends can be arranged and are priced up front.
Types of premises we cover in St Albans
- 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 St Albans
How much does an air handling unit service cost in St Albans?
In St Albans, 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 Harpenden, Hatfield and Hemel Hempstead?
Yes. Alongside St Albans, we also cover Harpenden, Hatfield and Hemel Hempstead. Each has its own page with local guide prices.
Which postcodes do you cover in St Albans?
All of them, including AL1 and AL3. 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 long do air handling units last?
Commonly 20 years or more with good maintenance, though fans and controls may need replacing sooner.
Get a guide price for St Albans
The visit price is agreed before we book. We reply with a guide price or available dates.