Split and multi-split systems in Derry
A free survey, a clear specification and a fixed price for split and multi-split air conditioning in Derry.
- 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 Derry?
Budget roughly £1,350–£2,695 per system ex VAT in Derry. For a typical job — two-room multi-split — expect £3,150–£5,450 plus VAT. Your exact price is fixed in writing once we have surveyed.
A split air conditioning system has an indoor unit and an outdoor unit joined by refrigerant pipework.
Working in Derry
In Derry, typical commercial premises include town-centre shops and offices, surgeries, gyms and units on business parks.
Postcode districts we cover in Derry include BT47. We also work in nearby Strabane, Limavady and Coleraine. In Derry we work with offices, shops and hospitality premises, from a single room to a whole floor; each job starts with a heat load check rather than a guess from the floor area.
What is included
- Survey and unit sizing
- Wall-mounted, floor-standing or under-ceiling indoor units
- Outdoor unit on wall brackets, a flat roof frame or ground mounts
- Pipework in neat trunking or concealed routes
- Commissioning, remote or wired controls and F-gas records
Local guide prices for Derry
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.
How a job in Derry 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. We keep work areas in Derry screened and tidy at the end of each day.
Test and commission
Pressure test, evacuation, any extra refrigerant charge, then commissioning and handover.
Things to check in Derry
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.
Working hours
Most Derry businesses prefer noisy work outside trading hours. Early starts, evenings and weekends can be arranged and are priced up front.
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 Derry 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.
Premises we work in around Derry
- Healthcare and dental: clean, quiet cooling for surgeries, clinics, dental practices and care settings.
- Retail and shops: comfortable shop floors, stockrooms and entrances, even with the door open.
- 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.
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 about split systems in Derry
How much does a split air conditioning system cost in Derry?
Guide prices in Derry 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 Strabane, Limavady and Coleraine?
Yes. Alongside Derry, we also cover Strabane, Limavady and Coleraine. Each has its own page with local guide prices.
Which postcodes do you cover in Derry?
All of them, including BT47. Give us your postcode when you enquire and we will confirm the visit details.
How much does a split air conditioning system cost for a business?
A single wall-mounted split typically costs £1,450–£2,950 plus VAT installed. Multi-splits with two to four indoor units are typically £3,450–£9,950 plus VAT.
Can a split system heat in winter?
Yes. Modern split systems are heat pumps and can heat efficiently down to well below freezing.
Get a guide price for Derry
Free survey and fixed written quote. We reply with a guide price or to book the survey.