Wondering if your boiler needs repairing or replacing? When i think of the extra cost i could have ended up paying british gas, not only for the boiler but for unnecessary boiler cover, my blood really starts to boil. We are fully insured heating and cooling professionals! With energy bills more expensive than ever, your boiler needs to be heating your home for the lowest possible cost and your old boiler could be losing you on average around. Wondering if your boiler needs repairing or replacing?.