Commercial ventilation, Scottish Islands
Air handling units (AHU) in the Scottish Islands
AHU replacement, EC fan upgrades, controls and planned servicing, across the Scottish Islands.
- From £9,550 + VAT per unit
- By arrangement
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.
The Scottish Islands 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 the Scottish Islands at a glance
- Area
- Scottish Islands, Scotland
- Towns listed
- 1, largest Stornoway
- Postcode districts
- HS2 and HS1
- Price region
- Scotland
- Survey
- By arrangement, travel quoted first
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.
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 the Scottish Islands
| 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. Travel is quoted separately for this area.
When to get it looked at
- Noisy plant rooms or rooftop units
- Filters that are never changed
- Corroded casings or leaking drain trays
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 the Scottish Islands
Questions about air handling units (AHU) in the Scottish Islands
Which towns in the Scottish Islands do you cover?
All of the Scottish Islands, including Stornoway. If your town is not listed, send the postcode and we will confirm.
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.
Are prices different in the Scottish Islands?
Our guide prices are adjusted by region. In the Scottish Islands 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 Islands?
Visits here are by arrangement. Because of the ferry or long travel involved, we quote travel separately and in writing before you commit, and we can often combine visits to keep the cost down.
Other services in the Scottish Islands
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.