Air conditioning, heat pumps and ventilation across Surrey, Berkshire and London
HT Cooling designs, installs, services and repairs air conditioning, air to air heat pumps and ventilation for homes and businesses. We are based in Lightwater, Surrey. Every engineer who works on refrigerant is F-Gas registered (certificate 2004080), and we hold Constructionline Gold, SMAS Worksafe and Acclaim accreditation.
What we do
Air conditioning
Installation for homes, offices, shops, restaurants and server rooms.
Learn more about air conditioningServicing & repair
Keeping systems efficient, legal and running, whoever installed them.
Learn more about servicing & repairHeating & plumbing
Boilers, radiators, cylinders and plumbing for homes.
Learn more about heating & plumbingInspections & F-Gas
TM44 inspections and F-Gas leak checks for building owners and landlords.
Learn more about inspections & f-gasElectrical & EV
Electrical work for homes, businesses and industry, and EV chargers.
Learn more about electrical & evHeating your home this winter
Every air conditioning system we install is also an air to air heat pump. It takes heat from the outside air and warms the room in winter, then cools the same room in summer. For a loft conversion, a home office, a garden room, or a home without gas, it is often the simplest way to be comfortable all year. Find out how air to air heat pumps work, or call 03453 022 969 and ask.
Why Choose HT Cooling?"Because we care."
We are an established, founder-led business built on reputation. We don't just install systems; we build lasting relationships with facilities managers, main contractors, and homeowners across the South East.
Did you know your air conditioning can heat your home too?
Fully Accredited
F-Gas, Constructionline Gold, and SSIP approved.
Fast Response
Reliable, communicative team ready to tackle urgent faults.
Commercial & Domestic
Expertise spanning complex industrial setups to discreet home units.
Trusted by Leading Brands
Brands We Install
We partner with industry-leading manufacturers to ensure reliability.
What Our Clients Say
"Amazing service and courteous staff. All done in one day. Great communication from start to finish. They even refitted all my photos and pictures back to my walls in the exact same positions, attention to detail. 10/10"
"Harry and his team did an excellent job. They were very clear when spelling out our options, and the installation work was carried out promptly and very neatly. As promised, we can't see any cables without specifically looking for them. The whole team were polite, professional and helpful. I heartily recommend this company to anyone wishing to do something similar."
"Harry and his team were super professional and polite. From the moment Harry came to scope the work I knew we had the right guys. I was given all options and no pressure to go with them for the job. It was a big job, not rushed but also completed in a timely manner. Would highly recommend."
Book an Engineer
Tell us what you need and we'll call you back to confirm a time that works. This is a request, not a confirmed booking — we'll be in touch to arrange it.
Questions people ask us
Ready to discuss your project?
Get in touch today for a free site survey and no-obligation quote.
Proud sponsors of Woking FC
We're backing our local side, the Cards. Some might say the greatest team in the world.
Learn more about our Woking FC sponsorship