We were concerned about replacing our old central heating boiler in the middle of winter, but had no need to worry. Rob planned and organised the work so that we were never without heating at the end of the day - replacing the thermostat one day, the boiler another day, the radiators another day, and various final tasks including new gas pipework and a new water tank on the final day. We also appreciated his advice and recommendations on which boiler, thermostat and radiators to install to replace our old system. It is now nearly two months since the system was installed and all seems to be working fine. Most importantly, we are warmer and more comfortable, despite our house, built in 1900 not being the easiest to heat. With a new energy efficient boiler the bills might be lower too!