Commercial ventilation, Cumbria
Air handling units (AHU) in Cumbria
AHU replacement, EC fan upgrades, controls and planned servicing, across Cumbria.
- From £9,450 + 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.
We carry out air handling units (AHU) across Cumbria, including Penrith, Ulverston, Carlisle, Barrow-in-Furness and Kendal. Prices use North West rates. We survey first, free of charge for new installations on the mainland, then send a fixed written quote.
Air handling units in Cumbria at a glance
- Area
- Cumbria
- Towns listed
- 7, largest Carlisle
- Postcode districts
- LA9, CA24, CA25, CA14, CA15 and CA10
- Price region
- North West
- 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 Cumbria
| Work | Guide price |
|---|---|
| Air handling unit replacement, small to medium unit, like-for-like position (per unit) | £9,450–£33,200 + VAT |
| Air handling unit service: filters, belts or EC fan check, coils, controls (per unit per visit) | £185–£375 + VAT |
North West rates shown. Prices exclude VAT. The fixed price is confirmed in writing after we have seen the job.
When to get it looked at
- Rising energy bills from old plant
- Frequent belt or fan failures
- Noisy plant rooms or rooftop units
Rules in England
English building work follows Approved Document F (2021 edition) for ventilation rates, installation and commissioning. Workplaces must also be ventilated with a sufficient quantity of fresh or purified air under the Workplace (Health, Safety and Welfare) Regulations 1992.
How the job runs
- Survey
- Options
- Plan
- Install
- Commission
Towns we cover in Cumbria
Questions about air handling units (AHU) in Cumbria
Which towns in Cumbria do you cover?
All of Cumbria, including Penrith, Ulverston, Carlisle, Barrow-in-Furness and Kendal. 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 Cumbria?
Our guide prices are adjusted by region. In Cumbria we use North West rates, so air handling unit replacement, small to medium unit, like-for-like position is typically £9,450 to £33,200 + VAT per unit.
Is the survey free in Cumbria?
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 Cumbria
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.