Commercial air conditioning in Castlereagh
Installation, servicing, repairs and compliance for businesses in Castlereagh, with local guide prices for every service.
- Free survey for new installations
- Local guide prices for 22 services
- Unit sizes, refrigerant and price set out in writing
Commercial air conditioning in Castlereagh
We design, install, service and repair commercial air conditioning and ventilation across Castlereagh, and handle the F-gas leak checks and TM44 inspections larger systems need.
In Castlereagh, a single split system typically costs £1,350–£2,250 plus VAT installed; a ceiling cassette is priced per unit.
Castlereagh and surrounding areas
Businesses in Castlereagh range from independent shops and restaurants to offices, clinics and warehouses. Belfast is about 4 km away.
We cover every Castlereagh postcode, including BT5 and BT6. Neighbouring towns we cover include Belfast, Newtownabbey and Lisburn.
We plan installations in Castlereagh so the noisy work — core drilling, ceiling access, lifting plant — happens when it disturbs your business least.
Each visit in Castlereagh ends with a written report: what was checked, readings taken and anything that needs attention, priced separately for you to approve.
What businesses in Castlereagh ask us for
Commercial ventilation
Supply and extract ventilation for fresh air, comfort and compliance.
From £2,695 per system, ex VAT
Air conditioning servicing
Routine servicing that keeps systems efficient, clean and within warranty.
From £160 per visit, first indoor unit, ex VAT
Ducted air conditioning
Hidden units above the ceiling, with only slim grilles on show.
From £3,150 per ducted zone, ex VAT
Commercial air conditioning installation
Design, supply and installation of cooling and heating systems for business premises.
From £1,795 per indoor unit (zone), ex VAT
Air curtains
Over-door air curtains that keep heat in and cold out at open entrances.
From £1,350 per doorway, ex VAT
Planned maintenance contracts
Scheduled PPM visits, F-gas leak checks and records for your whole estate.
From £180 per indoor unit, per year, ex VAT
All services and local guide prices
Air conditioning installation
| Service | From (ex VAT) | Basis |
|---|---|---|
| Commercial air conditioning installation | £1,795 | per indoor unit (zone) |
| Office air conditioning | £1,995 | per zone |
| VRF and VRV systems | £2,250 | per indoor unit (whole system) |
| Ceiling cassette air conditioning | £1,995 | per cassette |
| Ducted air conditioning | £3,150 | per ducted zone |
| Split and multi-split systems | £1,350 | per system |
| Air-to-air heat pumps | £1,500 | per zone |
| Server room and comms room cooling | £3,650 | per room (duty/standby pair) |
Servicing, repairs and replacement
| Service | From (ex VAT) | Basis |
|---|---|---|
| Air conditioning servicing | £160 | per visit, first indoor unit |
| Planned maintenance contracts | £180 | per indoor unit, per year |
| Air conditioning repairs | £135 | per repair visit |
| Air conditioning cleaning | £85 | per indoor unit |
| Air conditioning replacement and upgrades | £1,500 | per indoor unit |
F-gas and TM44 compliance
| Service | From (ex VAT) | Basis |
|---|---|---|
| F-gas leak checks and records | £135 | per visit, first system |
| TM44 air conditioning inspections | £365 | per building |
| Decommissioning and refrigerant recovery | £225 | per system |
Ventilation and air quality
| Service | From (ex VAT) | Basis |
|---|---|---|
| Commercial ventilation | £2,695 | per system |
| Heat recovery ventilation (MVHR) | £4,550 | per unit installed |
| Fan coil units | £60 | per fan coil serviced |
| Air handling units | £225 | per unit, per visit |
Design and specialist systems
| Service | From (ex VAT) | Basis |
|---|---|---|
| HVAC design and heat load surveys | £455 | per project |
| Air curtains | £1,350 | per doorway |
Before you book in Castlereagh
Shared buildings
In multi-let buildings, roof space, risers and plant areas are often controlled by a managing agent. We work to their permits and method-statement requirements.
Roof and height work
Flat roofs, high walls and atriums need the right access equipment and edge protection. We plan towers, MEWPs or scaffold before the job, not on the day.
Access and parking
Town-centre jobs in Castlereagh often come down to access — loading restrictions, parking for the van and getting equipment onto a roof. We check this at survey and plan deliveries around it.
Working hours
Most Castlereagh businesses prefer noisy work outside trading hours. Early starts, evenings and weekends can be arranged and are priced up front.
Two rules matter for most businesses in Northern Ireland: EU F-gas rules that apply in Northern Ireland (leak checks from 5 tonnes CO2e) and the periodic energy inspection for more than 12 kW of air conditioning.
Questions from businesses in Castlereagh
How much does commercial air conditioning cost in Castlereagh?
A single wall-mounted split typically costs £1,350–£2,250 plus VAT installed in Castlereagh, and a ceiling cassette £1,995–£4,550 per unit. A small shop or office with two to four indoor units usually comes to £4,550–£15,195 plus VAT.
Do you also cover Belfast, Newtownabbey and Lisburn?
Yes. Alongside Castlereagh, we also cover Belfast, Newtownabbey and Lisburn. Each has its own page with local guide prices.
Do you service systems you did not install?
Yes. We service most commercial makes and models; tell us the make and model if you know them.
Do you handle landlord consent?
We supply the drawings, unit data sheets and method of fixing your landlord or managing agent will ask for.
Is the survey free?
Yes, for new installations and replacements on the UK mainland. Service, repair and inspection visits are priced before we book them.
Nearby towns
Get a guide price for Castlereagh
Send a few details and we will arrange a survey or call you back with a guide price.