Split and multi-split systems in Castlereagh
A free survey, a clear specification and a fixed price for split and multi-split air conditioning in Castlereagh.
- Free site survey and fixed written quote
- Unit sizes, refrigerant and price set out in writing
- Work planned around your opening hours
How much does a split air conditioning system cost in Castlereagh?
Our guide range in Castlereagh is £1,350–£2,695 per system before VAT; a typical job (two-room multi-split) is £3,150–£5,450 plus VAT. You get a fixed written quote after the free survey.
A split air conditioning system has an indoor unit and an outdoor unit joined by refrigerant pipework.
Covering Castlereagh and nearby
Businesses in Castlereagh range from independent shops and restaurants to offices, clinics and warehouses. Belfast is about 4 km away.
That includes premises in BT5 and BT6 and the surrounding districts. Neighbouring towns we cover include Belfast, Newtownabbey and Lisburn. Split and multi-split air conditioning in Castlereagh is priced from a written specification: unit sizes, positions, pipe routes, condensate, electrics, controls and commissioning are all listed.
What is included
- Survey and unit sizing
- Outdoor unit on wall brackets, a flat roof frame or ground mounts
- Pipework in neat trunking or concealed routes
- Condensate drainage
- Commissioning, remote or wired controls and F-gas records
Local guide prices for Castlereagh
Prices below include our regional adjustment for Northern Ireland (8% below the UK guide).
| Item | Guide price (ex VAT) | Inc VAT | Basis |
|---|---|---|---|
| Single split 2.5–3.5 kW | £1,350–£2,250 | £1,620–£2,700 | per system |
| Single split 5–7 kW | £1,795–£2,695 | £2,154–£3,234 | per system |
| Multi-split, 2 indoor units | £3,150–£5,450 | £3,780–£6,540 | per system |
| Multi-split, 3–4 indoor units | £4,550–£9,150 | £5,460–£10,980 | per system |
| Extra pipework beyond 5 m | £30–£60 | £36–£72 | per metre |
Ex VAT, supply and install with standard access.
From enquiry to handover in Castlereagh
Survey
We size the unit to the room and agree indoor and outdoor positions and the pipe route.
Mount the units
Indoor unit on a mounting plate, outdoor unit on brackets or a frame with anti-vibration mounts.
Pipe and wire
Pipework, interconnecting cable and condensate are run and made off neatly. In Castlereagh we agree timings around your opening hours.
Test and commission
Pressure test, evacuation, any extra refrigerant charge, then commissioning and handover.
Before you book in Castlereagh
Outdoor unit position
Outdoor units need air flow and access, and should be away from neighbours' windows to keep noise down.
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.
One outdoor unit, many rooms
Multi-splits save wall space but share a single compressor. For server rooms or critical spaces we recommend dedicated systems.
Leased premises
If your Castlereagh premises are leased, the landlord's written consent is usually needed for external units, wall penetrations and roof access. We provide drawings and data sheets for the request.
Types of premises we cover in Castlereagh
- Warehouses and industrial: cooling for offices, mezzanines, control rooms and temperature-sensitive areas.
- Pubs and bars: cooling for busy bars, function rooms and cellars, sited with neighbours in mind.
- Retail and shops: comfortable shop floors, stockrooms and entrances, even with the door open.
- Healthcare and dental: clean, quiet cooling for surgeries, clinics, dental practices and care settings.
Compliance in Northern Ireland: refrigerant work falls under EU F-gas rules that apply in Northern Ireland, and buildings with more than 12 kW of air conditioning in total need a periodic energy inspection (often called TM44).
Common questions from businesses in Castlereagh
How much does a split air conditioning system cost in Castlereagh?
Guide prices in Castlereagh run from about £1,350 to £2,695 per system, plus VAT. A typical job (two-room multi-split) costs £3,150–£5,450 plus VAT. We fix the price in writing after a free survey.
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.
Which postcodes do you cover in Castlereagh?
All of them, including BT5 and BT6. Give us your postcode when you enquire and we will confirm the visit details.
Can a split system heat in winter?
Yes. Modern split systems are heat pumps and can heat efficiently down to well below freezing.
How long does it take to fit?
A single split is usually fitted in a day; a multi-split in one to two days.
Get a guide price for Castlereagh
Free survey and fixed written quote. We reply with a guide price or to book the survey.