Commercial ventilation, Lancashire
Air handling units (AHU) in Lancashire
AHU replacement, EC fan upgrades, controls and planned servicing, across Lancashire.
- 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.
If you are anywhere in Lancashire, send the postcode and a few photos and we will tell you what we would recommend. Towns we cover include Morecambe, Lancaster, Lytham St Annes, Preston and Burnley.
Air handling units in Lancashire at a glance
- Area
- Lancashire
- Towns listed
- 29, largest Preston
- Postcode districts
- PR2, BB10, BB11, BB1, BB2 and FY1
- Price region
- North West
- Survey
- Free survey (UK mainland)
What the work involves
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. We plan the lift, temporary arrangements and isolations with you so the building can keep working.
Controls upgrade
New controls, sensors and BMS integration.
Planned servicing
Filters, belts, coils, drains and controls on a schedule.
Like-for-like replacement
New unit in the same position, connected to existing ductwork.
Guide prices in Lancashire
| 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 |
These ranges use our North West rates. Prices exclude VAT. You get a fixed written price before any work is booked.
Common reasons people call
- Filters that are never changed
- Corroded casings or leaking drain trays
- Rooms that no longer get enough air
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 Lancashire
- Preston
- Burnley
- Blackburn
- Blackpool
- Rossendale
- Morecambe
- Lancaster
- Lytham St Annes
- Skelmersdale
- Leyland
- Accrington
- Chorley
- Darwen
- Nelson (Lancashire)
- Fleetwood
- Ormskirk
- Rawtenstall
- Colne
- Poulton-le-Fylde
- Heysham
- Haslingden
- Cleveleys
- Clitheroe
- Clayton-le-Woods
- Bacup
- Great Harwood
- Padiham
- Barnoldswick
- Brierfield
Questions about air handling units (AHU) in Lancashire
Which rules apply to ventilation in Lancashire?
In England, ventilation in new and altered homes is covered by Approved Document F of the Building Regulations. Landlords also have duties under the Housing Health and Safety Rating System, and workplaces must be ventilated under the Workplace (Health, Safety and Welfare) Regulations 1992.
Do you work on rooftop units?
Yes, with safe access arranged for roof work.
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.
Which towns in Lancashire do you cover?
All of Lancashire, including Morecambe, Lancaster, Lytham St Annes, Preston and Burnley. If your town is not listed, send the postcode and we will confirm.
Are prices different in Lancashire?
Our guide prices are adjusted by region. In Lancashire 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.
Other services in Lancashire
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.