I recently had these firm in to fit a new boiler. My old boiler was in excess of 20 years old. Simon and his team came up for a visit. Discussed the job. Also suggested I should install radiators in all bedrooms upstairs in my house. Before all the heat was rising, meeting cold air. Also, the old boiler would have only been working at 50% off capacity. His team came in. All very friendly guys. There was no mess about them at all. Would not even of noticed they were in the house. My house is now super warm. Thanks to Simon and his team