Last year I had a new boiler fitted. Now this was done by a mate of a mate. The instalation went really well a bit scruffy but ok. The old boiler was in the kitchen and I wanted the new one in the loft, non of this was a problem for him, all is working well. However it terns out that he has no corgi registration. As expected he has gone to ground. My problem is I can't find anyone to sign it off, I would like to sell up, what can I do now.