Something shifted this spring in how the UK thinks about air conditioning. For years, cooling systems sat firmly in the luxury category, expensive to install, expensive to run, and hard to justify in a climate that seemed to manage without them. That perception is changing fast, driven partly by warmer summers and partly by a significant government policy change that came into force in April 2026.
Whether you are looking at air conditioning installation for the first time or dealing with a system that has stopped working and needs repair, this guide covers what you need to know right now.
What Changed in April 2026
The Boiler Upgrade Scheme, which has offered grants for low-carbon heating since 2022, was overhauled in April 2026 to include air-to-air heat pumps as a newly eligible technology. From 28 April, homeowners in England and Wales can access a £2,500 grant towards an air-to-air heat pump installation, applied for by an MCS-certified installer and deducted directly from the cost.
The reason this matters for air conditioning is straightforward: almost every air-to-air heat pump on the UK market is reverse cycle, meaning the same unit heats in winter and cools in summer. The grant is designed for low-carbon heating, but it also includes cooling capability. Eligibility rules are specific, and not every home will qualify, so the right first step is to speak with an MCS-certified installer who can assess your property against the current scheme criteria.
5 Companies Offering Air Conditioning Installation and Repair in the UK
With demand for air conditioning rising and new grant funding now available, more homeowners and businesses are looking for reliable installers. Here are five providers operating across the UK, ranging from national brands to established regional specialists.
1. Daikin UK
Daikin is one of the world’s largest manufacturers of air-conditioning and heat-pump equipment and has a well-established presence in the UK residential and commercial markets. They operate through a network of approved installers rather than directly, so your experience will depend on the installer you are matched with. For anyone exploring the Boiler Upgrade Scheme, Daikin’s range of air-to-air systems includes units that qualify under the new April 2026 rules.
2. Leicester Air Conditioning Services
For homeowners and businesses in the East Midlands, Leicester Air Conditioning Services provides both domestic and commercial air conditioning installation across the region. As a local specialist, they offer the kind of site-specific advice for the air conditioning repair that national providers sometimes lack, particularly useful when assessing whether a property qualifies for current grant funding and which system is appropriate for the space.
3. British Gas
British Gas offers air conditioning installation and servicing through its HomeCare product range, with nationwide coverage and the backing of an established service network. A useful option for homeowners who want a single provider for heating and cooling, with an annual service plan included. Worth checking current coverage areas and product availability directly, as their air conditioning offer has evolved over recent years.
4. The Air Conditioning Company
Based in London, The Air Conditioning Company has been trading for over 35 years and covers installation, repair, and maintenance for both domestic and commercial systems. They offer a 10-year warranty on installations and operate across London and the Home Counties—making them a strong option for anyone in the South East looking for an established independent specialist.
5. Chillaire
Chillaire is a specialist air-conditioning installer covering domestic and commercial projects, with experience in both new installations and repairs to existing systems. A reliable option for anyone looking for a dedicated air conditioning specialist rather than a generalist trades business.
What to Look for When Choosing an Installer
Whoever you go with, a few things are worth checking before you commit. The installer should be F-Gas registered, which is a legal requirement for anyone working on systems containing refrigerant. If you are pursuing the Boiler Upgrade Scheme grant, they must also be MCS certified. Beyond credentials, ask whether they carry out a site survey before quoting, what warranty they offer on parts and labour, and how they handle repairs if something goes wrong after installation.
When You Need a Repair Rather Than a New Installation
Air conditioning systems are generally reliable, but faults do occur, particularly in older units or those that have not been serviced regularly. Common issues include refrigerant leaks, electrical faults, and problems with the outdoor compressor unit. Most established installers offer repair services alongside installation, and an annual service is the most effective way to catch minor faults before they become costly ones.
If your system is more than ten to fifteen years old and requires a significant repair, it is often worth getting a comparison quote for a new installation. Modern units are considerably more efficient than older systems, and the long-term running cost savings can offset the upfront cost of replacement, particularly now that grant funding is available for qualifying homes.
