Tell us about your home
Property size, number of rooms, and your cooling needs
How much is aircon installation?
The cost of air conditioning installation depends on several factors, including the size of your property, the type of unit you choose, and how complex the installation is.
For a standard professionally installed single-split system (one indoor + one outdoor unit), expect a cost range of £1,800 to £4,500.
For a full ducted system (whole-home solution with air distribution via vents), costs typically start from around £5,000 and can exceed £10,000 for larger properties.
^ At the low end, very simple systems or basic units (like portable ACs) begin from around £250.
Prices normally include the unit, pipework, labour, and commissioning. By comparing quotes, you can make sure you're paying the right price for the system that suits your home.
How is an air conditioning unit installed?
A qualified installer will assess your home and recommend the most efficient setup. The installation process usually includes:
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Survey & planning
Determining the ideal location for indoor and outdoor units.
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Mounting the indoor unit
Fixed high on a wall or within ducting.
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Fitting the outdoor condenser
Typically on an external wall or ground bracket.
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Connecting pipework & electrics
Running refrigerant lines and power safely between units.
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Testing & commissioning
Ensuring your AC system is cooling efficiently and set up correctly.
How long does AC installation take?
Installation time varies depending on the type of system and property layout:
Single-room wall-mounted unit: 3 to 6 hours
Multi-room system: 1 to –2 days
Ducted or whole-home systems: 2 to 4 days
Installers will work to minimise disruption and leave everything clean and tidy once finished.
How much does air conditioning cost to run?
Running costs depend on the unit’s efficiency rating, usage level and electricity prices. On average:
A modern A-rated split system can cost 10p to 50p per hour
^ to run for cooling.Larger or older units may cost more, while inverter technology helps keep consumption low.
To reduce running costs, choose an energy-efficient model, cool only the rooms you need, and make use of eco-modes and timers.
How to get an AC installation quote
Comparing quotes is the simplest way to save on air conditioning installation. Here’s how:
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Choose your preferred providers
Compare options from several providers.
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Receive tailored quotes
Installers will provide prices based on your requirements
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Book your installation
Once you're happy with a quote, schedule your fitting at a time that suits you.
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Reviewed on 14 Jan 2026 by
