You can use the insuduct groundbreaker, I've used it for a water main that was forgotten on a new build so had to bring it up out of the ground and up the wall then through wall 6 inches above floor level.
They also use it for flats so can run up side of buildings in mdpe.
Just keep pressuring him, hes probably really busy. Tell him to at least get the cert completed otherwise you'll have to get another electrician in to test and certify his work .
I spoke to neighbour as soon as i realised, her brother did the job for her she said he's coming back to sort. That was 6 weeks ago.
So I'll sort. Guttering not my favourite job im a plumber by trade but never fit the ally seamless stuff
They touched my guttering 1st. Ive had a conversation with them and they agreed to sort it out, as they cut into our shared seamless gutter and this is the result.
Its been 6 weeks now and the dripping is driving me mad