How Much Does Air Conditioning Cost to Install? (UK 2026)
What air conditioning costs to install in the UK in 2026: typical prices for single-split, multi-split and ducted systems, what drives the cost, and how to get an accurate quote.
By Max Tuleberg · Founder, Vento · Last updated 24 October 2026
Founder of Vento. Worked on the tools before building the software.
The honest answer to "how much does air conditioning cost?" is: it depends on your home. But you don't want a non-answer, so below are realistic UK ballpark ranges for 2026, what moves the price, and how to get a figure you can actually rely on. Treat these as a guide — the only accurate price comes from a proper survey of your property.
Typical UK installation costs (2026)
| System | Typical rooms | Indicative installed cost |
|---|---|---|
| Single wall-mounted split | 1 room | £1,500 – £3,000 |
| Multi-split (one outdoor unit) | 2 – 4 rooms | £3,000 – £7,000+ |
| Ducted / concealed | Whole floor / home | £6,000 – £12,000+ |
These are indicative supplied-and-fitted ranges for typical UK homes, including a standard install. Premium brands, long pipe runs, difficult access and extensive making-good can push costs above these figures.
Want a figure for a specific room? See air conditioning cost by room for the size and typical price of a bedroom, living room, home office, loft conversion and more.
A £2,500 grant can come off the price
Since 28 April 2026, an air-to-air heat pump — air conditioning that heats your home as well as cooling it — can get a £2,500 Boiler Upgrade Scheme grant in England and Wales, as long as it can meet all of the home's space heating on its own, replaces your existing gas, oil, LPG or electric heating, and the installer is MCS certified. The grant is deducted from the quote up front. See who qualifies and how it's paid.
What drives the cost
- Number and size of indoor units — more rooms and larger capacities cost more.
- Pipe runs and routing — the further the indoor units are from the outdoor unit, the more refrigerant pipe, cable and labour.
- Access — upstairs units, high external walls or anything needing scaffolding or a platform adds cost.
- Brand and efficiency — premium, ultra-quiet or high-efficiency units carry a higher price (and often lower running costs).
- Making good — core drilling, trunking, decoration and tidying where pipes pass through the building.
What's included in a good quote
A professional quote should be itemised, not a single round number. Look for the equipment (indoor and outdoor units), materials (pipe, insulation, brackets, condensate management), the labour and commissioning, and the F-Gas certification. A clear breakdown — ideally with good/better/best options — lets you compare like for like.
Get an accurate figure
Start by working out roughly what capacity you need with our free air conditioning size calculator, and estimate the running costs (or read our running costs guide for worked examples). Then have a qualified installer survey the property — that's the only way to turn a ballpark into a firm, fixed price for your home.
This guide is general information for UK installers, not legal or regulatory advice. Always check the current regulations and manufacturer instructions for your specific job.
Frequently asked questions
How much does air conditioning cost to install in the UK?
As an indicative 2026 guide, a single wall-mounted split in one room typically costs around £1,500–£3,000 supplied and fitted. A multi-split serving several rooms from one outdoor unit is roughly £3,000–£7,000+, and ducted or concealed systems start higher again. The exact price depends on the number of rooms, unit sizes, pipe runs, access and making good — so a survey is the only way to get an accurate figure.
Why do air conditioning quotes vary so much?
Because two jobs are rarely the same. Longer refrigerant pipe runs, difficult access (upper floors, scaffolding), the number and size of indoor units, the brand chosen, and how much making-good is needed all move the price. A quick online 'from' price rarely reflects your actual property.
Is it cheaper to install air conditioning in winter?
Sometimes. Demand for installers peaks in late spring and summer, so booking in the cooler months can mean shorter lead times and occasionally better pricing — the equipment cost is broadly the same year-round.
Is there a grant for air conditioning?
Yes, in England and Wales, if the system is an air-to-air heat pump — air conditioning used to heat your home as well as cool it — that heats the whole home on its own and replaces your existing gas, oil, LPG or electric heating. Since 28 April 2026 that qualifies for a £2,500 Boiler Upgrade Scheme grant, deducted from the installer's quote. Cooling-only systems don't qualify.
Does the price include running the system as a heater?
Most modern splits are reverse-cycle heat pumps that heat as well as cool at no extra hardware cost — so the same install gives you efficient winter heating too. Running costs depend on the unit's efficiency and your electricity tariff.
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