We have used several national household named companies to maintain and service our combi boiler. Due to poor experiences with those companies we chose to use a local company, Safgas. If you live in their catchment area, use this company. We had been told by a national company that we needed a new boiler, when Scott from Safgas attended to inspect the boiler he told us not to pay out for another boiler. Our existing Worcester Bosch had several more years left in it and all we had to do was to change the flue, update parts and carry out a full service, all at the fraction of the price of a new boiler!! Date for repairs was agreed, Scott attended on time, did the work and now the boiler works better than it ever did!! Recommend this company very highly.