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A single-room split system costs £1,500–£3,000 fully fitted, with the unit typically £600–£1,400 and labour £700–£1,200. A multi-split system covering 2–3 rooms costs £4,000–£8,000, and a ducted whole-house system £8,000–£15,000. Expect London prices to run 15–25% above the national average. Comparing quotes from local installers is the best way to pin down your exact price.

A wall-mounted split system (one outdoor unit, one indoor unit) is the most popular choice for cooling a single room such as a bedroom or home office. A multi-split runs several indoor units off one outdoor unit for whole-home comfort. Portable units are cheaper upfront but much noisier and less efficient, so most homeowners who use cooling regularly upgrade to a fixed system.

Yes. Most modern split systems are air-to-air heat pumps: they run the cooling cycle in reverse to deliver efficient heating in winter. One unit can cool you in summer heatwaves and take the load off your central heating the rest of the year. Ask installers to quote a heating-and-cooling model if year-round use appeals to you.

No. The £7,500 Boiler Upgrade Scheme covers air-to-water and ground source heat pumps that provide heating and hot water, and a cooling unit does not qualify. Be wary of any company advertising an air conditioning grant. The good news is aircon is far cheaper to install than those systems in the first place.

Yes. Split systems contain refrigerant, and UK law requires anyone installing or servicing them to hold F-Gas certification. Always check your installer is F-Gas certified before booking. Electrical work must also meet Part P building regulations.

Fill in the short form with your details and what you want to cool. We pass your enquiry to vetted air conditioning specialists covering your area, who contact you with competing quotes so you can compare prices and choose the best deal.

Yes, 100% free for homeowners. There are no fees and no obligation to accept any quote. Our service is funded by the installation companies who want to reach homeowners like you.

A single-room split system is usually installed in a day: the engineer mounts the indoor and outdoor units, runs the pipework and cabling between them, then pressure-tests and commissions the system. Multi-room installations typically take 2–3 days depending on how many indoor units are fitted.

It depends on the property. Rules differ for houses, flats, listed buildings and conservation areas, and the outdoor unit's position and noise levels matter. A good installer will check what applies to your property and handle any requirements before work starts.