N
never-in-doubt
Well he looked at the cylinder and said "it's one of the best" but as it's unvented he cannot work on the boiler as he's unqualified.To work on an unvented cylinder he should be G3 qualified and to work on a boiler he should be Gas safe Registered.
If you've been paying for boiler cover get them back - he shouldn't need to touch the unvented cylinder to repair your boiler
We don't pay boiler cover, this is Homeserve as an add-on (free) via home insurance. But I think they're sending a qualified engineer lol. Confused, I am!