Is winter a good time to install air conditioning?

Yes, and for most people it's the best time. You avoid the rush that starts with the first heatwave, you get to choose the installation date, and the system spends the months before summer heating the room instead of sitting unused. This winter there's also a deadline: domestic installations carry no VAT until 31 March 2027.

Can you install air conditioning in winter?

Yes. Cold weather doesn't stop an installation. The outdoor unit goes on a wall bracket, a flat roof or a ground stand in the same way at any time of year, and the system is pressure tested and commissioned on the day whatever the weather. A single room is usually fitted in one day.

The only things that delay work are the same in any season: heavy rain on a job that needs a roof, or access equipment that has to be booked.

Is it quicker to get it fitted in winter?

Usually. Demand for air conditioning follows the weather. When the first hot week of the year arrives, everyone who has been thinking about it rings at once, and diaries fill. In winter you get the survey and the installation date that suits you, rather than whichever slot is left.

The process is the same all year: a free survey, a fixed written price within 48 hours, and the installation booked on a day you choose.

Will air conditioning heat my home in winter?

Yes. A modern air conditioning system is an air to air heat pump, so it heats as well as cools from the same indoor unit. It moves heat from the outside air into the room, which means it delivers several units of heat for every unit of electricity it uses. That makes it far cheaper to run than a plug in electric heater.

It does give less output as the weather gets colder, so it's worth sizing with heating in mind if you plan to rely on it. The running costs article has the figures, and if you're wondering whether it could replace your radiators, this comparison with a gas boiler sets out where each one wins.

Why does the VAT deadline matter?

Domestic air conditioning installations are zero rated for VAT until 31 March 2027, because HMRC treats air conditioning that heats as well as cools as an energy saving material. From 1 April 2027 the rate is set to return to 5%.

The relief only applies when the same company supplies and installs the system. On a £1,650 single room installation, 5% would be another £82.50, and on a three room multi split at £4,995 it would be nearly £250. Installing before the end of March keeps it at zero.

Is air conditioning cheaper in winter?

Not from us. Our prices are the same all year: a single room from £1,650 fitted and two rooms on one outdoor unit from £3,450. The saving in winter is in time and in the heating you get from the system before summer, not in the price. The cost guide has every price.

What should I do before booking?

Work out roughly what size you need with the size calculator, and check where the outdoor unit could go. If you live in a terrace or a flat, the guides to terraced houses and flats and apartments cover the rules that apply.

Then book a free survey. If you book in winter, the system is fitted, commissioned and heating your home well before the first warm day of next year.