Commercial ventilation, Clwyd
Air handling units (AHU) in Clwyd
AHU replacement, EC fan upgrades, controls and planned servicing, across Clwyd.
- 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 Clwyd, from Colwyn Bay, Flint, Rhyl, Hawarden and Rhosllannerchrugog. We survey first, free of charge for new installations on the mainland, then send a fixed written quote.
Air handling units in Clwyd at a glance
- Area
- Clwyd, Wales
- Towns listed
- 13, largest Wrexham
- Postcode districts
- LL12, CH5, CH7, CH4, CH5 and LL28
- 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 Clwyd
| 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
- Filters that are never changed
- Corroded casings or leaking drain trays
- Rooms that no longer get enough air
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 Clwyd
- Wrexham
- Buckley
- Deeside
- Colwyn Bay
- Flint
- Rhyl
- Hawarden
- Rhosllannerchrugog
- Prestatyn
- Brymbo
- Llandudno
- Abergele
- Mold
Questions about air handling units (AHU) in Clwyd
Which rules apply to ventilation in Clwyd?
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.
What does an AHU service cost?
A service visit typically costs £195 to £395 per unit excluding VAT, depending on size and access.
Do you work on rooftop units?
Yes, with safe access arranged for roof work.
Which towns in Clwyd do you cover?
All of Clwyd, including Colwyn Bay, Flint, Rhyl, Hawarden and Rhosllannerchrugog. If your town is not listed, send the postcode and we will confirm.
Are prices different in Clwyd?
Our guide prices are adjusted by region. In Clwyd 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 Clwyd
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