We had Abdel and Imran come from Crystal sigma to fix our broken AC units. Not only did they fix them but the service they provided was amazing, everything question we had they explained kindly and p... See more
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We’ve had a contract for 3 years now. The most disorganised and irritating business… arrived unannounced to service the aircon 3 months early and then chasing 30 day invoice payment from the next day,... See more
Company replied
Our ac was broken after they explained what was wrong they cleaned them and they started working without any issues. We’ll make sure to call back for any kind of issues. Very friendly engineers Imran... See more
Samir came up with the ideal solution for my house and Vali and his team did an impeccable job with the install. We were concerned as our house was recently renovated and AC was an afterthought,... See more
Company details
Information provided by various external sources
Cambridge air conditioning Company, air conditioning in Cambridge. Crystal Sigma is air conditioning and Refrigeration Company in London for both domestic and commercial sectors.
Contact info
United Kingdom
- crystalsigma.com
4.4
Excellent
92 reviews
No recent history of asking for reviews
This company hasn't invited customers recently, so reviews may not be representative
Replied to 100% of negative reviews
Typically replies within 24 hours
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amazing service from start to end
amazing service from start to end, great company
November 5, 2019
Unprompted review
We found their engineers very helpful…
We found their engineers very helpful and knowledgeable.
October 16, 2019
Unprompted review
Really happy with their team.
Really happy with their team.
Good guys installing.
We did have a few issues with some parts breaking early on, but they always came around either the same day or the next day to fix it, which i was really impressed with!
October 11, 2019
Unprompted review
Very professional and prompt in sorting…
Very professional and prompt in sorting and fixing problems.
October 11, 2019
Unprompted review
Highly Recommend
Would highly recommended, staff are great as well as being good with communication. The process was smooth and would deal with them again.
October 10, 2019
Unprompted review
Crystal Sigma are really good firm…
Crystal Sigma are really good firm where they are good at responding to us as soon as possible and get work action as quick as possible.
October 7, 2019
Unprompted review
Excellent job by a professional team
Excellent job and done on time and a good price. Any issues resolved quicky without impacting rest of the operation.
Will use Crystal Sigma for future installations and also the maintenance contract is a must.
Good job, well-done team.
Happy customer.
Definitely would recommend.
October 7, 2019
Unprompted review
Crystal Sigma one of my trusted D1+…
Crystal Sigma one of my trusted D1+ contractors at Daikin and I would thoroughly recommend their work. Good people to deal with and neat and tidy installs.
October 4, 2019
Unprompted review
Very helpful
October 3, 2019
Unprompted review
Great firm with good customer service.
October 3, 2019
Unprompted review
Excellent service
Excellent service. All works done swiftly and left house nice and tidy.
October 3, 2019
Unprompted review
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