Commercial ventilation, Berkshire
Air handling units (AHU) in Berkshire
AHU replacement, EC fan upgrades, controls and planned servicing, across Berkshire.
- From £10,950 + 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 Berkshire gets a written quote before it starts and a commissioning record when it finishes. We cover Lower Earley, Windsor, Reading, Slough and Bracknell and the villages around them.
Air handling units in Berkshire at a glance
- Area
- Berkshire
- Towns listed
- 14, largest Reading
- Postcode districts
- SL6, SL7, RG40, RG41, RG14 and RG19
- Price region
- South East
- Survey
- Free survey (UK mainland)
What the work 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.
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 Berkshire
| Work | Guide price |
|---|---|
| Air handling unit replacement, small to medium unit, like-for-like position (per unit) | £10,950–£38,450 + VAT |
| Air handling unit service: filters, belts or EC fan check, coils, controls (per unit per visit) | £215–£435 + VAT |
These ranges use our South East rates. Prices exclude VAT. You get a fixed written price before any work is booked.
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 England
In England, ventilation is covered by Part F of the Building Regulations and its guidance, Approved Document F (2021 edition). Employers have a separate duty under the Workplace Regulations 1992 to provide effective and suitable ventilation.
How the job runs
- Survey
- Options
- Plan
- Install
- Commission
Towns we cover in Berkshire
- Reading
- Slough
- Bracknell
- Maidenhead
- Wokingham
- Newbury
- Lower Earley
- Windsor
- Crowthorne
- Thatcham
- Sandhurst
- Ascot
- Burnham
- Sunninghill
Questions about air handling units (AHU) in Berkshire
Which towns in Berkshire do you cover?
All of Berkshire, including Lower Earley, Windsor, Reading, Slough and Bracknell. If your town is not listed, send the postcode and we will confirm.
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.
Are prices different in Berkshire?
Our guide prices are adjusted by region. In Berkshire we use South East rates, so air handling unit replacement, small to medium unit, like-for-like position is typically £10,950 to £38,450 + VAT per unit.
Is the survey free in Berkshire?
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 Berkshire
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.