We carry a full range of boiler spare parts, available through your local. If your drains aren’t flowing as easily as it should, then it’s probably a bit blocked instead of paying loads of money for chemical-filled products, try fixing the problem yourself with a. Before paying for repairs, check whether your boiler is still under its initial warranty most new boilers typically come with cover for parts and labour in the first one or two years. According to the current standards, new boilers.