Free tool · 60 seconds
Air con Install Check
Tell us your rooms. We tell you the unit size for each one, the system you need, a guide installed cost, and what to check before you book. No email needed to see your result.
Not sure of the size? Length × width in metres. A typical double bedroom is 12–14 m².
Your Install Check
Suggested system
Single split (1 room)
Total cooling
~1.4 kW
Guide installed cost
£1,500 – £2,500
- Room 1: 14 m², average → about 4,800 BTU (1.4 kW)
- Houses: an outdoor unit is usually allowed under permitted development in England, with size and position limits. Listed buildings and conservation areas can need consent. Your installer will check.
- Cooling only: no UK grant covers a cooling-only system.
Rule-of-thumb estimates and national guide prices, not a quote. An installer’s survey sets the real size and price.
Wait for the £2,500 grant?
A reversible air-to-air heat pump that replaces your heating may qualify for £2,500 from the Boiler Upgrade Scheme in England and Wales. The rules are in force, but claims have not opened yet. Read the grant guide. Leave your email and we tell you the day claims open.