Commercial ventilation, West Glamorgan
Air handling units (AHU) in West Glamorgan
AHU replacement, EC fan upgrades, controls and planned servicing, across West Glamorgan.
- From £9,450 + VAT per unit
- Free survey
An air handling unit (AHU) is the central plant that filters, moves and often heats, cools or recovers heat from the air for a building's ventilation system. We replace ageing units, upgrade fans and controls, and service AHUs so they keep delivering their design airflows.
West Glamorgan has every kind of building, from old terraces to new estates and business parks, and every job is designed around the building in front of us, not a standard kit.
Air handling units in West Glamorgan at a glance
- Area
- West Glamorgan, Wales
- Towns listed
- 6, largest Swansea
- Postcode districts
- SA8, SA9, SA1, SA2, SA7 and SA10
- Price region
- Wales
- Survey
- Free survey (UK mainland)
What the work involves
New units must meet current ecodesign rules for fan efficiency and heat recovery. Replacements often involve crane lifts, roof work and out-of-hours changeovers. We plan the lift, temporary arrangements and isolations with you so the building can keep working.
EC fan retrofit
Belt-driven fans replaced with direct-drive EC fans.
Controls upgrade
New controls, sensors and BMS integration.
Planned servicing
Filters, belts, coils, drains and controls on a schedule.
Guide prices in West Glamorgan
| Work | Guide price |
|---|---|
| Air handling unit replacement, small to medium unit, like-for-like position (per unit) | £9,450–£33,200 + VAT |
| Air handling unit service: filters, belts or EC fan check, coils, controls (per unit per visit) | £185–£375 + VAT |
These ranges use our Wales rates. Prices exclude VAT. You get a fixed written price before any work is booked.
Common reasons people call
- Filters that are never changed
- Corroded casings or leaking drain trays
- Rooms that no longer get enough air
Rules in Wales
Wales has its own Part F ventilation guidance, published by the Welsh Government, and work is checked by building control. Employers in Wales also have the Workplace Regulations 1992 duty to ventilate enclosed workplaces.
How the job runs
- Survey
- Options
- Plan
- Install
- Commission
Towns we cover in West Glamorgan
Questions about air handling units (AHU) in West Glamorgan
Which rules apply to ventilation in West Glamorgan?
In Wales, the Welsh Government's own Approved Document F (2022 edition) applies to ventilation in homes, with a new edition taking effect on 4 March 2027. Rented homes must be fit for human habitation under the Renting Homes (Wales) Act 2016, and workplaces must be ventilated under the Workplace (Health, Safety and Welfare) Regulations 1992.
Is it worth replacing belt-driven fans with EC fans?
Often yes. EC fans are usually more efficient, quieter and need no belt changes, and the retrofit can cost much less than a new unit.
Can you work out of hours?
Yes. Changeovers and crane lifts are often done at weekends or evenings to avoid disruption.
Which towns in West Glamorgan do you cover?
All of West Glamorgan, including Clydach, Ystalyfera, Swansea, Neath and Briton Ferry. If your town is not listed, send the postcode and we will confirm.
Are prices different in West Glamorgan?
Our guide prices are adjusted by region. In West Glamorgan we use Wales rates, so air handling unit replacement, small to medium unit, like-for-like position is typically £9,450 to £33,200 + VAT per unit.
Other services in West Glamorgan
Get a guide price in two minutes
Answer a few questions for a price range, or send photos and we will come back to you with a written quote.