Commercial ventilation, Renfrewshire and Inverclyde
Air handling units (AHU) in Renfrewshire and Inverclyde
AHU replacement, EC fan upgrades, controls and planned servicing, across Renfrewshire and Inverclyde.
- 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 Renfrewshire and Inverclyde, send the postcode and a few photos and we will tell you what we would recommend. Towns we cover include Port Glasgow, Paisley, Greenock, Newton Mearns and Renfrew.
Air handling units in Renfrewshire and Inverclyde at a glance
- Area
- Renfrewshire and Inverclyde, Scotland
- Towns listed
- 10, largest Paisley
- Postcode districts
- PA15, G46, G76, G14, PA1 and G53
- Price region
- Scotland
- 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.
Like-for-like replacement
New unit in the same position, connected to existing ductwork.
EC fan retrofit
Belt-driven fans replaced with direct-drive EC fans.
Controls upgrade
New controls, sensors and BMS integration.
Guide prices in Renfrewshire and Inverclyde
| 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.
When to get it looked at
- Frequent belt or fan failures
- Noisy plant rooms or rooftop units
- Filters that are never changed
Rules in Scotland
Scottish projects follow the Technical Handbooks (section 3, Environment) under the Building (Scotland) Regulations, usually with a building warrant. Scottish employers also have the Workplace Regulations 1992 duty to provide effective ventilation.
How the job runs
- Survey
- Options
- Plan
- Install
- Commission
Towns we cover in Renfrewshire and Inverclyde
Questions about air handling units (AHU) in Renfrewshire and Inverclyde
Which rules apply to ventilation in Renfrewshire and Inverclyde?
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 much does an AHU replacement cost?
A small to medium AHU replacement in the same position typically costs £9,950 to £34,950 excluding VAT, depending on size, heat recovery and lifting.
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.
Which towns in Renfrewshire and Inverclyde do you cover?
All of Renfrewshire and Inverclyde, including Port Glasgow, Paisley, Greenock, Newton Mearns and Renfrew. If your town is not listed, send the postcode and we will confirm.
Are prices different in Renfrewshire and Inverclyde?
Our guide prices are adjusted by region. In Renfrewshire and Inverclyde 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 Renfrewshire and Inverclyde
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.