Commercial ventilation, Suffolk
Air handling units (AHU) in Suffolk
AHU replacement, EC fan upgrades, controls and planned servicing, across Suffolk.
- From £10,450 + 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 Suffolk, send the postcode and a few photos and we will tell you what we would recommend. Towns we cover include Ipswich, Lowestoft, Bury St Edmunds, Haverhill and Felixstowe.
Air handling units in Suffolk at a glance
- Area
- Suffolk
- Towns listed
- 12, largest Ipswich
- Postcode districts
- IP10, CO8, CO10, IP14, CB8 and IP28
- Price region
- East of England
- Survey
- Free survey (UK mainland)
How we do it
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.
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 Suffolk
| Work | Guide price |
|---|---|
| Air handling unit replacement, small to medium unit, like-for-like position (per unit) | £10,450–£36,700 + VAT |
| Air handling unit service: filters, belts or EC fan check, coils, controls (per unit per visit) | £205–£415 + VAT |
East of England rates shown. Prices exclude VAT. The fixed price is confirmed in writing after we have seen the job.
Common reasons people call
- Noisy plant rooms or rooftop units
- Filters that are never changed
- Corroded casings or leaking drain trays
Rules in England
In England, ventilation is covered by Part F of the Building Regulations and its guidance, Approved Document F (2021 edition). 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 Suffolk
- Ipswich
- Lowestoft
- Bury St Edmunds
- Haverhill
- Felixstowe
- Sudbury (Suffolk)
- Stowmarket
- Newmarket
- Mildenhall
- Beccles
- Woodbridge
- Kesgrave
Questions about air handling units (AHU) in Suffolk
Is the survey free in Suffolk?
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.
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 rules apply to ventilation in Suffolk?
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.
Which towns in Suffolk do you cover?
All of Suffolk, including Ipswich, Lowestoft, Bury St Edmunds, Haverhill and Felixstowe. If your town is not listed, send the postcode and we will confirm.
Other services in Suffolk
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.