Welcome to the CoolZone Air Conditioning website.

Air conditioning specialists serving commercial and domestic properties throughout London, East Anglia and the South East.

Excellent service

All our engineers and team are here to assist you, whether through design concepts, new installations, system commissioning, R22 replacement, keeping your current systems running efficiently via our tailored maintenance contracts, or by diagnosing and repairing faults if your system fails.


Rapid response

CoolZone are committed to providing a fast response time to any questions or needs of our customers. This includes a call out service of 24-48 hours (including weekends) for repairs and breakdowns across London, East Anglia and the South-East, with engineers based on the outskirts of the M25.


Great prices

We are committed to supplying high quality products and first class service at reasonable prices. All our quotes are designed to offer the best value for money while meeting your specific system needs. We will do our best to offer you the most cost effective solution, and at the same time, we promise to beat any like for like quote you receive from any competitor.

Why choose CoolZone?

CoolZone is based in Essex and has over 20 years of combined engineer experience in all aspects of the industry, including over 1,000 installations, to provide cost effective and energy efficient air conditioning solutions. We are dedicated professionals and experts in the domestic and commercial environments serving London, East Anglia and the South East. We design, install, maintain, repair and replace heating and cooling systems, from a small individual unit serving a single room through to multiple large commercial units serving whole floors.

If you are interested in any of our services please contact us using the enquiry form on the right.

CoolZone are professional and reliable in their approach to all air conditioning work
  • We hold Refcom F-Gas - Full Company Certification allowing us to legally carry out all activities on refrigeration, air conditioning and/or heat pump equipment.
  • Our engineers are City & Guilds 2079 F-gas qualified, which is the mandatory industry requirement as of July 2011. All employees are CRB checked for both our and your peace of mind, allowing them to work in premises of a sensitive nature.
  • Engineers carry all relevant health and safety cards for site work, and are also trained in first-aid.
  • We provide free site surveys, with quotes completed swiftly and emailed to potential customers throughout the day directly from the engineer who visited the location.
  • 12 month warranties are included with all our installations, and extended manufacturer warranties are available where requested.
  • We tailor all maintenance contracts to meet the specific needs of each customer in order to prevent unnecessary faults and breakdowns.
  • These maintenance contracts are available on a fixed annual agreement or ‘pay as you go’ option.
  • We fault find on all major brands & styles of air conditioning systems, swiftly diagnosing problems and suggesting the most cost effective appropriate course of action to return your system to its most efficient working condition.
  • We are able to inform customers reliably about all the available options for replacing or updating R22 systems in a way that enables them to comply with government regulations without any unnecessary costs.
  • Engineers are involved in many aspects of running CoolZone, which allows them to answer questions & queries competently for our customers.
  • Customer care & service underpins everything we do. We pride ourselves in all aspects of our work, and if a customer isn’t happy, we aren’t happy.
  • Comprehensive designs solutions are available for single rooms such as server rooms, to complete buildings.
  • We supply and install products from all the major brands & manufacturers, including market leaders such as Daikin, through the mid-range brands to cost sensitive options.
  • No job is too big or too small. We’re here to help wherever we can.
  • We are able to provide air conditioning systems producing heating and cooling up to 3 times more efficiently than conventional systems.
  • We are able to help with any decisions you are likely to face regarding installations, R22 replacements, maintenance agreements or breakdowns and repairwork.

refcomAbove all, CoolZone aim to stand out from the crowd with our professional attitude and reliable quality of work, which we will deliver in a friendly and helpful manner while remaining competitively priced.


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A selection of manufacturer brands we work with: