Commercial ventilation, South Glamorgan
Air handling units (AHU) in South Glamorgan
AHU replacement, EC fan upgrades, controls and planned servicing, across South 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.
Our team is based in Great Barr, Birmingham, and we work throughout South Glamorgan, from Rhiwbina, Cardiff, Barry, Penarth and Llantwit Major. We survey first, free of charge for new installations on the mainland, then send a fixed written quote.
Air handling units in South Glamorgan at a glance
- Area
- South Glamorgan, Wales
- Towns listed
- 6, largest Cardiff
- Postcode districts
- CF15, CF10, CF11, CF62, CF63 and CF10
- Price region
- Wales
- Survey
- Free survey (UK mainland)
How we do it
Replacing the fan section with EC fans, or the whole unit with a modern heat recovery AHU, can cut running costs and noise while restoring airflow. 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.
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 South 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 |
Wales rates shown. Prices exclude VAT. The fixed price is confirmed in writing after we have seen the job.
When to get it looked at
- Noisy plant rooms or rooftop units
- Filters that are never changed
- Corroded casings or leaking drain trays
Rules in Wales
In Wales, ventilation follows the Welsh Approved Document F rather than the English version, with building control checking notifiable work. 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 South Glamorgan
Questions about air handling units (AHU) in South Glamorgan
Which towns in South Glamorgan do you cover?
All of South Glamorgan, including Rhiwbina, Cardiff, Barry, Penarth and Llantwit Major. If your town is not listed, send the postcode and we will confirm.
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.
Are prices different in South Glamorgan?
Our guide prices are adjusted by region. In South 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.
Is the survey free in South Glamorgan?
For new installations on the UK mainland, yes. The survey is free and the quote that follows is fixed and in writing. Servicing, testing and repair visits are charged, and we confirm the cost before booking.
Other services in South 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.