Air conditioning installation cost calculator
Add your rooms and we'll estimate the system size, installed price range and fitting time using typical 2026 UK prices.
Estimated installation
£1,400 – £2,400
Single split wall-mounted system (2 kW)
Fitting time: 1 day
Indicative only. Final equipment sizing and price should be confirmed by an installer.
Want an accurate price?
Compare local installersHow we calculate air conditioning costs
We estimate each room's cooling load from its volume, then adjust for sun exposure, glazing and room use. Each room is matched to a standard indoor unit size (2.0, 2.5, 3.5, 5.0 kW and above).
Prices reflect typical installed costs from UK installers for mid-range inverter systems, including standard pipe runs and electrical connection. Long pipe runs, scaffolding, structural work or premium equipment will add to the cost.
Read more in how much does air conditioning cost?