How much does air conditioning cost in Surrey?

A single-room wall-mounted split typically costs £1,500–£3,000 installed; a multi-split for 3–4 rooms £3,500–£7,000; and a ducted whole-home system £6,000–£20,000. Surrey/South-East prices sit a little above the UK average. Your fixed price comes after a free survey.

The number of rooms, the cooling capacity (kW) needed, the system type, pipe-run lengths and access, the brand chosen, and any conservation-area or listed-building requirements. Multi-room systems sharing one outdoor unit are more cost-effective per room.

Usually yes. A multi-split system runs several indoor units from a single outdoor condenser, so the per-room cost falls compared with separate single-split installs done at different times.

A modern inverter system is efficient — roughly 10–30p per hour to cool a typical room, depending on size and electricity tariff. Because it is reverse-cycle, it also provides low-cost heating in winter.