Homeserve - one huge problem - their contract is not worth the paper upon which it is written. We have a combi-boiler. We were told by their service engineer, that it was not "gas-safe", and required a new inlet gas pipe of a larger size. [The boiler's proprietary gas inlet socket was the size of pipe in use]. They demanded we had the larger size. The boiler started leaking water. not gas. We phoned Homeserve to come and fix it. They refused on grounds that it was not marked as gas-safe in their database register, and then demanded an £87.50p call out fee if they were to come. We have since had two gas engineers come in and who said it was completely gas safe. Here is an instance how Homserve are avoiding their contractual obligations.