Best Air Conditioning Installers in the UK

With summer heatwaves becoming more frequent as a result of climate change, having reliable air conditioning makes all the difference. Whether you’re upgrading an old system or installing a new one for the first time, choosing the right installer is key to getting the best performance and long-term value.

With so many installers across the UK, it can be hard to know who to trust. You want a company that not only fits your budget but also understands your home, keeps energy bills low and ensures everything runs smoothly for years to come.

To make your decision easier, we’ve highlighted the top 5 air conditioning installers in the UK, carefully selected based on factors such as customer reviews, years of experience and proven reliability.

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Our Top Air Conditioning Installers

Trustpilot scores and review counts in all tables were accurate at the time of data collection: December 10, 2025. Note that these values may change over time.

1. Glow Green

Glow Green is a national air conditioning installer dedicated to making it simple, affordable and stress-free to upgrade your home’s comfort. You can get a quick online quote, spread the cost with flexible finance options and have your new system fitted by fully qualified engineers who work to the latest energy-efficiency standards.

As well as installing new air conditioning systems, Glow Green provides ongoing servicing and maintenance, ensuring your home stays cool and efficient for years to come. Our commitment to competitive pricing, flexible payment plans and excellent customer service has made us one of the UK’s most trusted air conditioning installers.

Beyond air conditioning, Glow Green also installs heat pumps, solar panels and boilers, helping you create a comfortable, energy-efficient and environmentally friendly home with a single provider.

Good to Know:

• Enjoy great value with our competitive air conditioning prices and exclusive discounts across leading systems.

• We’re accredited installers for top brands including Hitachi, Samsung and Daikin, giving you access to trusted, high‑performance products.

• As a Refcom-certified installer, we guarantee every installation meets the highest industry standards with full documentation provided.

• With over 13,000 Trustpilot reviews and more than 14 years of successful trading, we’re trusted by thousands of homeowners nationwide.

• Every project is independently audited to ensure complete compliance and consistent quality across all installations.

• All our air conditioning units include a comprehensive warranty, giving you lasting confidence and peace of mind.

What Have Customers Said?

"From my first phone call to Glowgreen enquiring about air con for home, all the people i spoke to have been extremely helpful and pleasant to talk to, any concerns i had were discussed and resolved. On the day of installation, Dave and team arrived at 9am, we had a good chat about where the external unit was being placed as i had been given certain instructions from the local council on position of unit, Dave was extremely helpful, he listened to my concerns and we came up with a happy plan for us both. When Dave first came into my house he put shoe protectors on to go upstairs, he explained there would be little mess, when the internal unit was installed i went to clean up and there was actually nothing to clean, theyd done a great job, Killian the electrician arrived and got straight on with his bit, again answering my questions. The 3 guys were totally professional, polite, helpful all day. The working of the unit was explained to me, all cabling, pipework was immaculately placed, outside was cleaned, no rubbish was left. It was a pleasure having these guys do work on my house, please check this company out if you need air con etc, you wont be disappointed. Thank you to you all at Greenglow." - Trustpilot

What Have Customers Said?

"This company was the first and only enquiry I made when deciding to have air conditioning fitted to our house ( following the successive heat waves of summer 2025) and I have zero regrets. Their quote was very competitive, the installation very efficient and domestic disruption minimal — it even looks nice! I would thoroughly recommend Glow Green." - Trustpilot

Ready to get an aircon installed? Get your free, no-obligation air conditioning quote with Glow Green today!

2. BOXT

BOXT is a national installer known for making home upgrades quick, easy and affordable. The company offers a seamless online process where you can get a fixed price quote, book installation and have your new air conditioning system fitted by fully qualified engineers.

BOXT also partners with trusted brands such as Bosch, known for their energy-efficient and quiet air conditioning units that deliver reliable comfort all year round.

Homeowners praise BOXT for its excellent communication, professional engineers and hassle-free installations from start to finish. Reviewers often mention how efficient and friendly the team is, how cleanly the work is carried out and how quickly they notice a difference in comfort after the installation.

Many also highlight great value for money and say they only wish they’d chosen to install air conditioning sooner.

What Have Customers Said?

"I am very happy with the air-conditioning installed in the main bedroom. Everyone at BOXT was very friendly, professional and helpful, keeping me informed at every stage and ensuring the whole process was seamless. Excellent service too from the local engineers who carried out the installation." - Trustpilot

3. A.C. Wilgar Plumbing, Heating and Cooling

A.C. Wilgar Plumbing, Heating & Cooling is a well-established company known for its reliable, professional service and meticulous attention to detail. With decades of experience in home heating and cooling, A.C. Wilgar delivers high-quality air conditioning installations tailored to meet your specific needs. The team prides itself on friendly communication, careful planning and completing each job to the highest standard, even when managing complex, multi‑unit installations.

Customers describe A.C. Wilgar as professional, efficient and a pleasure to work with from start to finish. Many highlight how the engineers take the time to understand their requirements, ask the right questions and ensure every detail of the installation fits perfectly with their home.

Reviewers also praise the team’s hard work, punctuality and tidy approach, noting that even large jobs are completed smoothly and to expectation. Overall, homeowners appreciate feeling involved in the process and confident in the quality of the finished work.

What Have Customers Said?

"AC Wilgar installed 7 air con units for us. Both the initial service and the team onsite were professional and knowledgeable. They worked around some of our timings and asked loads of questions thorughout the installation to ensure it matches our requirements. I would highly recommend their services and have already told a few of my friends. Very happy with our new units." - Trustpilot

4. South Manchester Heating

South Manchester Heating is a trusted local company providing expert heating and air conditioning services across the region. With a strong reputation for reliability and excellent workmanship, their team focuses on delivering efficient installations with a personal touch. From booking your appointment to completing the job, you can expect professional communication, punctual engineers and clean, careful work carried out to the highest standards.

Customer reviews consistently praise South Manchester Heating for their friendliness, professionalism and attention to detail. Many mention how punctual and tidy the engineers are, taking time to explain the system clearly and ensure everything is running perfectly before leaving.

Customers also highlight the helpful office team, quick turnaround times and fair pricing, noting that the company’s service quality has kept them coming back for repeat work.

What Have Customers Said?

"Excellent service from start to finish! Jack in the office was very helpful, and the turnaround was quick and efficient. The engineer arrived right on time and completed the job flawlessly with minimal disruption." - Trustpilot

5. The Air Conditioning Company

The Air Conditioning Company is one of the UK’s longest‑established specialists in cooling systems, offering installations, servicing and maintenance to both homes and businesses. With decades of experience, they pride themselves on providing reliable, high‑quality air conditioning solutions fitted by skilled engineers. From the first enquiry to the final handover, their service is designed to be smooth, efficient and delivered with professionalism.

Customers frequently praise The Air Conditioning Company for its punctuality, efficiency and impeccable installation quality. Reviews highlight how the engineers arrive on time, work neatly and take the time to explain how everything operates once the system is installed.

Even when minor issues arise, the company is quick to respond and resolve them, with senior staff personally getting involved to ensure customer satisfaction. Homeowners describe the whole experience as 'faultless', noting that the air conditioning systems perform perfectly and look great once fitted.

What Have Customers Said?

"The Team were really good at providing advice on our job, saving us money. They were also super flexible in terms of installation date, (which we kept moving around). Overall, great experience with sales, admin and engineering team. Great team overall." - Trustpilot

How to Choose an Air Conditioning Installer

While we’ve highlighted five of the best air conditioning installers in the UK, it’s always worth doing your own research before deciding who to trust with your home. To help you make an informed choice, here are some of the key factors we looked at when reviewing and rating installers, the same ones you could use if you decide to do your own research:

Customer satisfaction and reviews

Reading what other homeowners have to say can give you a real sense of a company’s reliability and professionalism. Look for installers with consistently positive feedback and a proven track record for great service.

Experience and qualifications

Choose an installer with fully qualified, accredited engineers who have experience fitting different air conditioning systems. Skilled professionals ensure your installation meets safety and efficiency standards.

Communication and transparency

Good installers keep you updated every step of the way, from quoting to installation. Clear communication helps avoid confusion and makes the whole process smoother and stress‑free.

Clean and tidy workmanship

Reviews often mention how engineers respect customers’ homes, leaving the workspace spotless. Professional, tidy work shows attention to detail and care for your property.

Flexibility and reliability

A quality installer will work around your schedule where possible and show up on time. Reliability and flexibility go hand‑in‑hand with good customer service.

Aftercare and support

Even after the installation is complete, strong aftercare, such as servicing, maintenance and responsive customer support, shows a company’s commitment to long‑term satisfaction.

Value for money

The cheapest option isn’t always the best. Balance cost with quality, ensuring you’re getting efficient products, expert installation and lasting comfort at a fair price.

Which Aircon Brands Does Glow Green Install?

At Glow Green, we only work with trusted, leading air conditioning manufacturers known for quality, performance and energy efficiency.

Here are the brands we install:

• Hitachi: A world‑renowned name in cooling and heating, Hitachi offers air conditioning systems that combine advanced technology with exceptional energy efficiency. Their units are known for quiet operation, reliability and smart features designed to create a comfortable indoor climate year‑round.

• Samsung: Samsung air conditioning systems blend modern design with cutting‑edge innovation. From sleek wall‑mounted units to powerful whole‑home solutions, Samsung models deliver excellent temperature control and intuitive smart connectivity, making them a popular choice for modern homes.

• Daikin: As one of the most respected names in climate control, Daikin is synonymous with precision, quality and eco‑friendly performance. Their air conditioners use advanced inverter technology to maintain consistent comfort while reducing energy use, perfect for anyone looking to keep their home cool and efficient.

Can You Use Heat Pumps for Cooling?

Yes, some heat pumps can be used for cooling as well as heating, but it depends on the system. Basically, some heat pumps work like a reversible air conditioner. In winter, it extracts heat from the outside air and transfers it indoors to warm your home. In summer, the process can be reversed, drawing heat out of your home and releasing it outside to keep your living spaces cool and comfortable.

However, not all models have this capability.

At Glow Green, the heat pumps we install are designed specifically for heating, meaning they don’t provide active cooling. These systems are ideal for keeping your home warm efficiently throughout the colder months and are an excellent alternative to a traditional gas boiler.

If you’re looking to replace your boiler with a heat pump, we can help you choose and install the right system for your home. On the other hand, for those wanting cooling in summer, our air conditioning installations are the perfect complement, keeping your home comfortable all year round.

Best Air Conditioning Installers FAQs