Commercial ventilation, Argyll and Bute
Air handling units (AHU) in Argyll and Bute
AHU replacement, EC fan upgrades, controls and planned servicing, across Argyll and Bute.
- 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.
Every job in Argyll and Bute gets a written quote before it starts and a commissioning record when it finishes. We cover Helensburgh and the villages around them.
Jobs on the islands and remote peninsulas are by arrangement, with travel quoted in writing before you commit.
Air handling units in Argyll and Bute at a glance
- Area
- Argyll and Bute, Scotland
- Towns listed
- 1, largest Helensburgh
- Postcode districts
- G84 and PA15
- Price region
- Scotland
- Survey
- Free survey (UK mainland)
What air handling units (AHU) involves
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 Argyll and Bute
| 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 |
Guide prices using Scotland rates. Prices exclude VAT. A guide price is not a quote: we confirm a fixed price in writing first.
Signs it is time to call us
- Frequent belt or fan failures
- Noisy plant rooms or rooftop units
- Filters that are never changed
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. 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 Argyll and Bute
Questions about air handling units (AHU) in Argyll and Bute
Which rules apply to ventilation in Argyll and Bute?
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 Argyll and Bute do you cover?
All of Argyll and Bute, including Helensburgh. If your town is not listed, send the postcode and we will confirm.
Are prices different in Argyll and Bute?
Our guide prices are adjusted by region. In Argyll and Bute 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 Argyll and Bute
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.