Q how much will a replacement boiler cost? Registered office: millstream, maidenhead road, windsor, berkshire sl gd. What pre-hire questions should be posed to a plumber? However, the internal seals are sometimes to blame once they blow, water will start leaking from the pump. Combi can you even still get traditional boilers? Our team of engineers can get to your quickly, even on bank holidays in % of cases, we fix your boiler there and then, ensuring you have.