Professional with a personal touch from… Professional with a personal touch from start to finish. The team explained everything clearly and enabled us to make the best decision for our property. They managed to squeeze installation in around a busy schedule at short notice. We have a newborn and we’re very worried about the heat in our bedroom - the engineers stayed beyond the end of their shift to make sure it was up and running. Essentially Crystal went above and beyond to help us out, and we are very grateful. I highly recommend them, and will do so to all my friends and family.

Have used these guy's on a number of… Have used these guy's on a number of occassions for new installs and repairs and found them to be reliable and tidy with their work. Easy to deal with and listen to what your requirements are to achieve a good result and very competitive prices.

Excellent service from Crystal Sigma We have recently had 2 air conditioning units installed at home and we would recommend Crystal Sigma and their engineers to anyone looking to get an A/C installed in their home. Both of the engineers we had install our units were very friendly, professional, and knowledgeable. They worked efficiently and tidily and were able to answer all of our questions. A big thank you to James, David, and the rest of the Crystal Sigma team!

Diligent, Professional, Great Service! Sam, Jamie and all of the team at Crystal Sigma have been extremely supportive and helpful through the entire process until completion. We had a tricky grade listed building to get AC for so the planning, design and commissioning process has been full of hurdles but the team have been very diligent and navigating through. Thanks Guys!

The service is very satisfactory The service is very satisfactory , finishing the job on time is not