How much does air conditioning installation cost?
Most UK installers hide their prices behind a form. We don't. Below are the real, fully-fitted prices we charge across Birmingham, Solihull, Halesowen and the wider West Midlands — supply, install, commissioning, F-Gas certificate and clean-up included.
| Job | Fitted price | On site |
|---|---|---|
| 1 room — small (bedroom, office up to 3.5kW) | £1,950 – £2,400 | 1 day |
| 1 room — large (lounge, open plan up to 5kW) | £2,400 – £3,100 | 1 day |
| 2 rooms (twin-split, one outdoor unit) | £3,600 – £4,600 | 1–2 days |
| 3 rooms (multi-split) | £4,900 – £6,200 | 2 days |
| 4–5 rooms (whole-house multi-split) | £6,400 – £7,800+ | 2–3 days |
| Conservatory / garden room | £2,200 – £3,200 | 1 day |
| Install-only (you supply the kit) | from £950 per indoor unit | 1 day |
| Annual service (per system) | £95 – £140 | 1 hour |
Prices are for domestic properties and include VAT at the current 0% rate on qualifying energy-saving installs. How the 0% VAT rule works →
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What changes the price
Long pipe runs
The first 3–4m is included. Beyond that expect £35–£55 per extra metre for pipework, cabling and trunking.
Scaffolding or high-level work
Most installs use ladders or a tower. Third-floor or awkward-access outdoor units can add £150–£400.
Condensate pump
£120–£180 when gravity drainage isn't possible — common on internal walls and loft rooms.
Electrical supply
A dedicated spur is usually £120–£200. Older consumer units may need an upgrade — we tell you before we start.
Brand choice
LG is our top pick for value and quiet running. Daikin and Mitsubishi Electric typically add 8–15%.
Decorative trunking or hidden pipework
Chasing pipework into walls for an invisible finish adds £200–£450 per room.
What's always included
- • Free home survey and heat-load sizing — no guessing at kW.
- • Wall-mounted indoor unit(s), outdoor unit, brackets, pipework and cabling.
- • Pressure test, vacuum, gas charge and commissioning by an F-Gas engineer.
- • F-Gas certificate, manufacturer warranty registration and a demo of the controls.
- • Dust sheets, floor protection and all waste taken away.
Is it cheaper in winter?
Yes. Between October and March lead times are short and we can usually fit within a week. From May onwards the diary fills fast and prices firm up. If you know you want cooling for next summer, booking in winter is the single easiest way to save money.
Running costs
A modern inverter unit costs roughly 15–35p per hour to run in a bedroom, and it heats far cheaper than a gas boiler on mild days. Work out your own running cost →