From the moment my husband made the first telephone call the service we received was absolutely outstanding. Within two hours of the first call a gentleman from the SGS team arrived at our home to discuss our options. He was not in any way a pushy sales man but made helpful suggestions and explained in a way I could understand (I am not a heating engineer!!) A couple more telephone calls from him and arrangements were made to fit new boiler. The engineer arrived on the exact time arranged, I can honestly say he never stopped working all day he had no breaks (to be honest I was getting worried he hadn't eaten). For such a young person he was very knowledgable in the product he was fitting extremely polite and a very clean worker no mess whatsoever. I think he is an absolute credit to his employers. As noted earlier the service we received and after service was absolutely outstanding, cost very reasonable, I would very highly recommend SGS to anyone who may be thinking of having new boiler/ heating system fitted. I wish SGS continued success for the future.