Commercial ventilation, Oxfordshire
Air handling units (AHU) in Oxfordshire
AHU replacement, EC fan upgrades, controls and planned servicing, across Oxfordshire.
- 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.
We carry out air handling units (AHU) across Oxfordshire, including Abingdon, Bicester, Didcot, Witney and Cowley. Prices use South East rates. The survey is free for new installations on the UK mainland, and the quote that follows is fixed and in writing.
Air handling units in Oxfordshire at a glance
- Area
- Oxfordshire
- Towns listed
- 13, largest Oxford
- Postcode districts
- OX2, OX5, OX12, OX10, OX11 and RG4
- Price region
- South East
- 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.
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 Oxfordshire
| 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 |
Guide prices using South East 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
- Filters that are never changed
- Corroded casings or leaking drain trays
- Rooms that no longer get enough air
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 Oxfordshire
- Oxford
- Banbury
- Abingdon
- Bicester
- Didcot
- Witney
- Cowley
- Carterton
- Kidlington
- Wantage
- Wallingford
- Henley-on-Thames
- Thame
Questions about air handling units (AHU) in Oxfordshire
Which rules apply to ventilation in Oxfordshire?
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 Oxfordshire do you cover?
All of Oxfordshire, including Abingdon, Bicester, Didcot, Witney and Cowley. If your town is not listed, send the postcode and we will confirm.
Are prices different in Oxfordshire?
Our guide prices are adjusted by region. In Oxfordshire 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.
Other services in Oxfordshire
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