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Expert HVAC Installation & Maintenance in London
CapCool is a family-run HVAC contracting business with over 30 years of combined experience in air conditioning and refrigeration sectors. Our F-Gas certified engineers specialise in tailored domestic and commercial installations, servicing, and maintenance across London and surrounding areas. We prioritise first-time service completions, environmentally responsible disposal practices, and utilise cutting-edge technology from manufacturers like Daikin and Mitsubishi. Our 5-star rated services are backed by 100% first-time job completions and a commitment to customised climate control solutions.

With dedicated engineers available for emergency call-outs, we ensure cost-efficient systems that meet both residential and business needs. Our team's expertise spans from single-unit installations to large-scale commercial refrigeration projects, maintaining strict adherence to safety and quality standards. Customer satisfaction is guaranteed through transparent communication, competitive fixed pricing, and meticulous attention to detail in every project we undertake.
Services
Domestic Air Conditioning Commercial HVAC Refrigeration Systems Ventilation Installation Cold Room Solutions Climate Control Servicing & Maintenance Heat Recovery Systems Energy Efficiency Custom HVAC Solutions
Highlights and features
  • Over 30 years of combined experience in HVAC sectors
  • 100% first-time service completions guarantee
  • F-Gas certified engineers for refrigerant compliance
  • Environmentally responsible disposal practices
  • Certified Daikin and Mitsubishi system specialists
What people say
Excellent service Highly recommended Prompt and professional Clean and tidy Perfect fit
Services
Domestic Air Conditioning
We install energy-efficient air conditioning systems for residential properties, including multi-split units and low-noise solutions. Our services cover loft conversions, conservatories, and bedrooms with discreet installations that maintain property aesthetics. All systems come with 7-year warranties and are installed by F-Gas certified engineers.
Commercial HVAC
Our commercial HVAC solutions include variable refrigerant flow systems and climate control for offices, restaurants, and retail spaces. We provide full lifecycle support from design to maintenance, ensuring energy efficiency and compliance with industry standards. Systems are tailored to meet specific business operational requirements.
Cold Room Installation
We design and install bespoke cold storage rooms for businesses requiring temperature-controlled environments. Solutions include walk-in freezers, refrigerated storage with shelving systems, and remote refrigeration units. All installations come with 1-year warranties and are commissioned by qualified engineers.
Ventilation Systems
Our ventilation solutions include heat recovery systems and fresh air circulation for commercial premises. We install Daikin VAM systems that improve indoor air quality while reducing energy costs. Services include duct heater installations and complete air management solutions for yoga studios and similar facilities.
Servicing & Maintenance
We offer one-off and contracted maintenance for air conditioning and refrigeration units. Our services include system checks, efficiency optimisation, and environmentally safe disposal of faulty components. Preventative maintenance plans help extend equipment lifespan and maintain warranty validity.
Questions
What areas do you serve?
We primarily serve London and surrounding areas including Perivale, Oxford, and neighbouring cities.
Do you offer emergency HVAC services?
We provide scheduled call-out services but don't operate 24/7 emergency support.
What HVAC brands do you work with?
We're certified to install and service Daikin and Mitsubishi systems, recommending best-fit solutions.
Do you provide warranties?
Yes, we offer 7-year warranties on air conditioning and 1-year on cold room installations.
Are your engineers certified?
All our engineers hold F-Gas certifications for safe refrigerant handling and system installation.
Can you handle commercial projects?
Yes, we manage commercial HVAC projects from design to installation across various business sectors.
Reviews (6)
Nitish Solanki
Dec 12, 2021 Report
Absolutely amazing service provided by the team. The professionalism and good nature of the team made installation seamless and with minimal disruption. The advice that I was provided prior to installation and on the day of installation was brilliant. The job is very neat and tidy which was a given as the team are very passionate in the service they provide. The machine itself is of high quality and does the job required with various functionality. I highly reccomend CapCool as you will not be disappointed. Thank you for your service
Naran
Aug 02, 2021 Report
What an amazing Company!
Erica promptly arranged the initial site visit with Farhan on the same day!
Farhan is very knowledgeable, friendly and passionate about air conditioning and was happy to explain any queries and provided guidance according to our needs. The quote received was competitive and very reasonable. Subsequent changes to our requests were promptly explained whilst providing neatest solution rather than making their installers life easy. Our team of installer were: Adnan, Imran and assistant Ibrahim absolutely brilliant team. Highly impressed with the neat trunking installed
Greg Ovenden
May 01, 2021 Report
Positive:Professionalism,Quality,Responsiveness
Great communication from start to finish. Very friendly and personable installation team who did a very neat and tidy job, while keeping us informed throughout the whole installation. Highly recommended.
Service:AC installation
Tony Cook
Apr 29, 2021 Report
Positive:Professionalism,Punctuality,Quality,Responsiveness,Value
I recently had a new air-conditioning unit installed and 2 older units serviced by CapCool and I found them to be an excellent company to do business with. The whole process from start to finish was handled skillfully and professionally and I would like to thank Mohammed and Erica for all their help.
Services:AC maintenance,Installation
Mohammed Samarraie
Feb 22, 2021 Report
Positive:Professionalism,Punctuality,Quality,Responsiveness,Value
Top service, very professional friendly people and very dedicated to finish task with top quality products and service. Flexible with your requirements. Competitive price too. Amazing experience
Service:AC installation
Rajesh Singh
Nov 09, 2020 Report
The team at Capcool were brilliant. I needed split a/c units in two of my bedrooms, and the loft bedroom had limitations in terms of placement. The team recommended a modern unit which would mount on the wall under the skylight opening and didnt require any visible ducts in the room. The other businesses that provided quotes said the only way to install in the loft bedroom was to run horrible looking conduits along the inside wall.
Hats off to the Capcool team for listening to my needs and recommending the perfect fit. The loft unit took a while to get from Panasonic, but once it arrived