It has been a nightmare from start. He is gs registered as I have checked. I had to chase for weeks to get him to amend his quote as he got a few things wrong/missing etc. We eventually arranged a date for install, but no-one turned up. I had to wait two weeks before anything happened and I was constantly chasing him. When his crew did start a day and a half in they left at lunch time to go work elsewhere! He keeps promising to do do things like call me, email etc but nothing ever happens. He hasn't done any of the work himself, just had two guys who I assume he employs. He has agreed to either cut £200 off the bill for the messing about or do some other plumbing bits for me, but I just can't trust him to do that. All he has done is look at where the boiler is located and glanced at the pipework. I think I will just tell him to go do one I am that hacked off!