Split and multi-split systems in County Down
Split and multi-split air conditioning in County Down, sized to the real heat load of your premises rather than guessed from the floor area.
- 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 County Down?
Our guide range in County Down 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.
Our coverage in County Down
We cover all of County Down, including Bangor, County Down, Castlereagh, Newtownards and Banbridge. Each town below has its own page with local guide prices.
Postcode districts we cover include BT4, BT18, BT22, BT24, BT27, BT30, BT32 and BT34. For split and multi-split air conditioning in County Down, the survey looks at where the outdoor unit can go, how pipework will reach the indoor units and whether the electrical supply has capacity.
What the job covers
- Survey and unit sizing
- Wall-mounted, floor-standing or under-ceiling indoor units
- Pipework in neat trunking or concealed routes
- Condensate drainage
- Commissioning, remote or wired controls and F-gas records
Guide prices in County Down
These guide prices are adjusted for Northern Ireland, where labour and access costs run about 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.
How a job in County Down works
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 County Down we agree timings around your opening hours.
Test and commission
Pressure test, evacuation, any extra refrigerant charge, then commissioning and handover.
Points to plan for in County Down
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.
Conservation areas
Historic streets and listed buildings in and around County Down are more likely to need planning permission for outdoor units on visible elevations. We check with the council's planning service before work is booked.
Pipe routes
Shorter, simpler pipe routes are cheaper and more reliable. We plan routes before quoting.
Access and parking
Town-centre jobs in County Down 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.
Who we work with in County Down
- Warehouses and industrial: cooling for offices, mezzanines, control rooms and temperature-sensitive areas.
- 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.
- Pubs and bars: cooling for busy bars, function rooms and cellars, sited with neighbours in mind.
In Northern Ireland, systems holding 5 tonnes CO2 equivalent of refrigerant or more fall under EU F-gas rules that apply in Northern Ireland, with regular leak checks and records; buildings with more than 12 kW of air conditioning in total also need a periodic energy inspection.
Your questions answered
How much does a split air conditioning system cost in County Down?
Guide prices in County Down 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 County Antrim, County Armagh and County Tyrone?
Yes. Alongside County Down, we also cover County Antrim, County Armagh and County Tyrone. Each has its own page with local guide prices.
Does a small split need F-gas leak checks?
It depends on the refrigerant charge and type. Many small R32 splits fall below the 5 tonnes CO2 equivalent threshold for mandatory leak checks, but they still need installing and servicing by F-gas certified engineers.
Single split or multi-split?
Separate singles are more resilient and can be cheaper for two rooms; a multi-split saves outdoor space. We price both where it is close.
Talk to us about your premises in County Down
Free survey and fixed written quote. We reply with a guide price or to book the survey.