The work carried out was for the modernisation of the boiler system. The work consisted of the design, removal of the old system, fit the replacement boiler in a new location, replace radiators, valves, controls, gas fire and commissioning. After installation of the new system I find there is an improvement in the annual running costs. I can confirm the workmanship and attention to detail carried out by Stuart and Mark was carried out in a professional manner. I would thoroughly recommend Discount Domestic Heating to anyone.