Air handling units (AHU) in Mid Glamorgan

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.

Mid 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 Mid Glamorgan at a glance

Area: Mid Glamorgan, Wales
Towns listed: 14, largest Rhondda
Postcode districts: CF32, CF40, CF41, CF39, CF40 and CF31
Price region: Wales
Survey: Free survey (UK mainland)

How we do it

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.

Controls upgrade

New controls, sensors and BMS integration.

Planned servicing

Filters, belts, coils, drains and controls on a schedule.

Like-for-like replacement

New unit in the same position, connected to existing ductwork.

Guide prices in Mid Glamorgan

Air handling units (AHU) guide prices in Mid 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.

Common reasons people call

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 Mid Glamorgan

Questions about air handling units (AHU) in Mid Glamorgan

Is the survey free in Mid 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.

Can you work out of hours?

Yes. Changeovers and crane lifts are often done at weekends or evenings to avoid disruption.

What does an AHU service cost?

A service visit typically costs £195 to £395 per unit excluding VAT, depending on size and access.

Which rules apply to ventilation in Mid 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.

Which towns in Mid Glamorgan do you cover?

All of Mid Glamorgan, including Maesteg, Rhondda, Tonypandy, Bridgend and Merthyr Tydfil. If your town is not listed, send the postcode and we will confirm.