Commercial ventilation, County Antrim
Air handling units (AHU) in County Antrim
AHU replacement, EC fan upgrades, controls and planned servicing, across County Antrim.
- From £9,150 + VAT per unit
- By arrangement
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.
County Antrim has every kind of building, from old terraces to new estates and business parks, and every job is designed around the building in front of us, not a standard kit.
Air handling units in County Antrim at a glance
- Area
- County Antrim, Northern Ireland
- Towns listed
- 7, largest Belfast
- Postcode districts
- BT15, BT36, BT18, BT37, BT42 and BT43
- Price region
- Northern Ireland
- Survey
- By arrangement, travel quoted first
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.
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 County Antrim
| Work | Guide price |
|---|---|
| Air handling unit replacement, small to medium unit, like-for-like position (per unit) | £9,150–£32,150 + VAT |
| Air handling unit service: filters, belts or EC fan check, coils, controls (per unit per visit) | £180–£365 + VAT |
These ranges use our Northern Ireland rates. Prices exclude VAT. You get a fixed written price before any work is booked. Travel is quoted separately for this area.
Common reasons people call
- Corroded casings or leaking drain trays
- Rooms that no longer get enough air
- Rising energy bills from old plant
Rules in Northern Ireland
In Northern Ireland, ventilation is covered by the Building Regulations (Northern Ireland) and Technical Booklet K. Northern Ireland has its own Workplace (Health, Safety and Welfare) Regulations (Northern Ireland) 1993 with the same duty to ventilate.
How the job runs
- Survey
- Options
- Plan
- Install
- Commission
Towns we cover in County Antrim
Questions about air handling units (AHU) in County Antrim
Is the survey free in County Antrim?
Visits here are by arrangement. Because of the ferry or long travel involved, we quote travel separately and in writing before you commit, and we can often combine visits to keep the cost down.
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 County Antrim?
In Northern Ireland, ventilation is covered by Technical Booklet K of the Building Regulations (Northern Ireland). Workplaces must be ventilated under the Workplace (Health, Safety and Welfare) Regulations (Northern Ireland) 1993.
Which towns in County Antrim do you cover?
All of County Antrim, including Antrim, Larne, Belfast, Lisburn and Newtownabbey. If your town is not listed, send the postcode and we will confirm.
Other services in County Antrim
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.