- Mark Wilson gave me very helpful advice about all options available for the replacement of my broken combi boiler. I was extreamly impressed by the speed and professional way Mr. Mark and his talented team carried out the work once I confirmed what system I wanted installed. Very friendly, efficient and thrustworthy. We had heating and hot water supply by the end of the second day. I am well impressed with the workmanship and the house was left tidy and clean when all work was completed. I will definately use his company again for future servicing of new central heating system and will be happy to recommend his company to any one. Thank you all for a fantastic job.