How much does air conditioning cost to install in the UK?
A air conditioning costs £1,500 to £7,000 in the UK, typically around £2,800 supplied and fitted. Prices reviewed June 2026.
Home air conditioning is priced by the number of rooms you cool and the type of system. A single wall-mounted split unit is the entry point, with a multi-split running several rooms from one outdoor unit costing more.
Price your air conditioning
Adjust for your job and area to get a range. Nothing is sent anywhere.
Air conditioning cost breakdown
What a air conditioning typically costs, by option:
| Type of system | Typical UK cost |
|---|---|
| Single room split unit | £1,500 to £3,000 |
| Two-room multi-split | £2,800 to £4,500 |
| Three to four room multi-split | £3,500 to £7,000 |
| + Premium brand, e.g. Daikin or Mitsubishi | add £300 to £800 |
What's included in the price?
A typical air conditioning price includes:
- The indoor unit, outdoor unit and brackets
- Pipework, trunking and condensate drain
- Installation by an F-Gas certified engineer
- Commissioning, gas charge and testing
What changes the price?
The things that move a air conditioning price most:
Number of rooms and indoor units
Single split versus multi-split system
Distance between indoor and outdoor units
Brand, cooling capacity and any electrical work
Does where you live change the cost?
London and the South East add around 20 to 30 percent on labour.
Common questions
A single wall-mounted split unit supplied and fitted by an F-Gas engineer typically costs £1,500 to £3,000, with most jobs around £1,800.
A multi-split running three to four rooms from one outdoor unit usually costs £3,500 to £7,000 depending on the number of indoor units.
These are independent guide prices based on typical UK jobs in 2026. Your actual cost depends on your property, spec, access and where you live. Always get at least three written quotes before committing.