I had the first Worcester combi boiler a 9.24 Heatslave that most people had never seen before. It was supplied from a header tank with a micro bore system. I contacted 5 companies for a quotation with an original plan to fit another Worcester. I found many companies could not break down the costs and there was a huge variation in prices. I had a boiler fitted at another property 3 years ago so I had an idea what the price should be. Jamie introduced me to ATAG boilers and the benefits of the design, construction and guarantees. This was especially relevant to an old microbore system and was happy to fit the Nest I already had. He did a great job at fitting the ATAG iC Economiser Plus35 and making good after the removal of the old Worcester. The new boiler arrived by courier on the first morning and all the waste was removed the morning after the installation. The variable parameters available on the boiler to clear and clean the microbore were invaluable. He took time to explain the operation and cleaning the system with Filtrox filter. When he left the boiler was working and system clean. I would recommend his work and technical knowledge and consider his price fair with a great quality job. Thank you and see you for the first year inspection!