How much does air conditioning cost in the UK?

Typical prices

A single wall-mounted split system for one room typically costs £1,400–£2,400 installed. Larger rooms needing 5 kW or more are often £1,900–£3,200.

Multi-split systems serving two to four rooms usually range from £3,500 to £9,000 depending on the number of indoor units and pipe runs.

What affects the price

Room size and heat gain, number of indoor units, length and difficulty of the pipe route, where the outdoor unit goes, electrical work, and the brand and efficiency of the equipment.

Comparing quotes

Check each quote lists the equipment model, the number of indoor and outdoor units, whether electrical work and making good are included, the warranty and whether VAT is included.