Commercial ventilation, Glasgow
Air handling units (AHU) in Glasgow
AHU replacement, EC fan upgrades, controls and planned servicing, across Glasgow.
- From £9,550 + 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.
If you are anywhere in Glasgow, send the postcode and a few photos and we will tell you what we would recommend. Towns we cover include Glasgow.
Air handling units in Glasgow at a glance
- Area
- Glasgow, Scotland
- Towns listed
- 1, largest Glasgow
- Postcode districts
- G11 and G1
- Price region
- Scotland
- 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.
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 Glasgow
| Work | Guide price |
|---|---|
| Air handling unit replacement, small to medium unit, like-for-like position (per unit) | £9,550–£33,550 + VAT |
| Air handling unit service: filters, belts or EC fan check, coils, controls (per unit per visit) | £185–£380 + VAT |
Scotland 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 Scotland
Scottish projects follow the Technical Handbooks (section 3, Environment) under the Building (Scotland) Regulations, usually with a building warrant. The Workplace (Health, Safety and Welfare) Regulations 1992 apply in Scotland too, requiring sufficient fresh or purified air.
How the job runs
- Survey
- Options
- Plan
- Install
- Commission
Towns we cover in Glasgow
Questions about air handling units (AHU) in Glasgow
Which rules apply to ventilation in Glasgow?
In Scotland, ventilation is covered by section 3 of the Building Standards Technical Handbooks. Private rented homes must meet the Repairing Standard, and workplaces must be ventilated under the Workplace (Health, Safety and Welfare) Regulations 1992.
How often should an AHU be serviced?
Most AHUs need servicing at least twice a year, with filters changed more often in dirty environments. SFG20 schedules are commonly used to set frequencies.
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.
Which towns in Glasgow do you cover?
All of Glasgow, including Glasgow. If your town is not listed, send the postcode and we will confirm.
Are prices different in Glasgow?
Our guide prices are adjusted by region. In Glasgow we use Scotland rates, so air handling unit replacement, small to medium unit, like-for-like position is typically £9,550 to £33,550 + VAT per unit.
Other services in Glasgow
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.