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Air conditioning

Available 24/7 across Cardiff

Optimum Air Conditioning

Optimum Air Conditioning are highly skilled installers of energy efficient air conditioning and refrigeration systems. We are accredited installers of Mitsubishi Electric & Daikin air conditioning systems and provide a comprehensive 5 year warranty on this equipment. We install the systems whilst knowing that all our engineers are F-Gas trained & registered and are kept fully up to date with the latest regulations and installation processes.

When it comes to selecting the right air conditioning or refrigeration system for your unique needs, there is no such thing as the single right answer. Different situations require different products, which is why we are proud to offer a wide range of products from the leading manufacturers, each with their own unique features to suit your requirements.

Take a look at some of our works on the gallery tab above or for more detailed projects, click on the Case Studies tab. For the most up to date information follow us on Facebook.

Office air conditioning
Keeping you comfortable

All year round

We have in-depth experience in the design and installation of all air conditioning and refrigeration equipment, from a small domestic system to the large VRF multi systems in commercial buildings and hotels. We install air conditioning and refrigeration equipment into medical facilities, industrial buildings, laboratories, clean rooms, domestic properties and server rooms etc.


As a result of the international Kyoto Protocol, chlorinated refrigerant gasses are being phased out in an effort to halt climate change. All air conditioning & refrigeration equipment installed by us utilises the most efficient zero ozone depleting refrigerants & is therefore fully compliant with latest F-Gas regulations. Our company is a Refcom member and all our engineers are F-Gas trained and registered, a legal requirement to work with refrigerant gases since 2011.

We also provide a full air conditioning & refrigeration maintenance package, we service and repair your equipment for cost effectiveness and efficiency. This protects your investment and lowers your running costs.

About us

Optimum Air Conditioning is a medium sized family run company with highly skilled and committed engineers. We have a wide range of experience in installing, repairing and servicing air conditioning, refrigeration and ventilation systems. We provide the complete solution from design, supply, installation, service & preventative maintenance.

You can rely on us to carry out any works to a very high standard, whether its installing a large air conditioning system or carrying out a service on a small refrigeration unit. We treat all our customers with the same respect.

We are based in South Wales but we have carried out works all over the UK for Optimum and as sub-contractors. Our engineers carry out installation, repair and maintenance work for some of the biggest facility management companies in the UK. If you are an air conditioning or refrigeration company you can also use our engineers to carry out the highest quality work for your company on a sub-contract basis, contact us for more details.

Optimum Air Conditioning work to the highest standards and we guarantee our work for five years from installation, all our engineers are F-Gas trained & registered. From 4 July 2009 it became a legal requirement for all businesses that install, commission, decommission, repair, maintain or service stationary refrigeration, air-conditioning and/or heat pump equipment containing F-Gas refrigerants to obtain an F-Gas Company Certificate.

At Optimum we are fully compliant with the latest F-Gas regulations and are a REFCOM registered company, Company Number: REF1012233.

We also have public and personal liability cover for your peace of mind, certificates available on request.

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Get in Touch

8 Walston Close, Wenvoe, Cardiff, CF5 6AS  /  Tel. 029 2059 4640

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Man fitting air conditioning
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