Commercial ventilation, Scottish Borders
Air handling units (AHU) in the Scottish Borders
AHU replacement, EC fan upgrades, controls and planned servicing, across the Scottish Borders.
- 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 the Scottish Borders, send the postcode and a few photos and we will tell you what we would recommend. Towns we cover include Hawick and Galashiels.
Air handling units in the Scottish Borders at a glance
- Area
- Scottish Borders, Scotland
- Towns listed
- 2, largest Hawick
- Postcode districts
- TD4, TD9 and TD1
- Price region
- Scotland
- Survey
- Free survey (UK mainland)
How we do it
Many AHUs in older offices, schools and retail units run on belt-driven fans, clogged filters and controls nobody understands. 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.
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 the Scottish Borders
| 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.
Signs it is time to call us
- Rising energy bills from old plant
- Frequent belt or fan failures
- Noisy plant rooms or rooftop units
Rules in Scotland
In Scotland, ventilation is covered by the Building (Scotland) Regulations and section 3 of the Technical Handbooks, and most building work needs a building warrant first. 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 the Scottish Borders
Questions about air handling units (AHU) in the Scottish Borders
Which towns in the Scottish Borders do you cover?
All of the Scottish Borders, including Hawick and Galashiels. 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 the Scottish Borders?
Our guide prices are adjusted by region. In the Scottish Borders 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.
Is the survey free in the Scottish Borders?
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 the Scottish Borders
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.