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London
0207 1830130
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Oxford
01865 922130
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Cambridge
01223 750301
Domestic & Commercial Solutions
Our creative solutions in air conditioning, refrigeration, ventilation, heating and electrical services cater for both the domestic and commercial sectors, and we pride ourselves in providing the best result for you.
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air condition Solution
When your home or business needs that cool edge or that warm touch ... readmore
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Electrical Solution
Crystal Sigma’s electricians are able to professionally carry out any domestic ...readmore
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Ventilation Solution
Without a supply of fresh air it can be difficult to work or relax. A good ventilation system... readmore
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Heating and Plumbers
Gone are the days when centralised heating was an item of luxury ... readmore
Welcome to Crystal Sigma
Crystal Sigma is a leading specialist in air conditioning, refrigeration, ventilation, heating and electrical services London, for the home and the business place.
We have offices based in London, Oxford and Cambridge, and our services cover all of Greater London, Oxfordshire, Cambridgeshire, Hertfordshire and Buckinghamshire.
Our highly qualified engineers guarantee a professional and reliable service, and we specialise in being flexible and responsive to your needs.
Let Crystal Sigma inject a breath of fresh air into your space – contact us today for a free quote and consultation.
Read the latest legislation on CFC and HFC phase-out.
What Our Client say
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You are one of the most efficient contractors I have come across and we need this approach...
Matthew Bell
Mitsubishi Electric -
Just wanted to send a quick email to say thanks very much to you and your engineers for finally sorting out our air con issues...
Jo Secker
Fisher Meredith LLP -
We have been using Crystal Sigma for over 5 years...
Suhail Hasan- MD
Tinseltown Groups of Companies -
Just wanted to say thank you for the successful installation of our air conditioning. We are very pleased with it...
Angela Chow