messy and proper rough but not completely unreasonable
looking at your 'snagging list'
Where the phrase “Chasing is inadequate” is used, this indicates that the channel is either too shallow
or too narrow for capping. No capping has been used throughout the installation.
if its too shallow for the cables then yes, its an issue, but there is no requirement for any capping and never has been. if you want capping added, expect to be charged for it
Most cabling is twisted and entangled and does not lay flat to the base of the channel or flat to the
wall. Some of it is unclipped.
providing its recesed beyond the finished surface, not really anything worth moaning about. should at least be clipped back and held in place
page 2:
Fascia not earthed to back box.
its a plastic switch. it doesnt have or need an earth. should be obvious by the lack of earth terminal ont he switch to put one... chasing also looks reasonable around the box. cant say if box is lever etc or not but it doesnt look too unreasonable. bit messy
page 3:
Fascia not earthed to back box.
doesnt need to be providing at least 1 fixed lug. which it has
Back box incorrectly installed
deeper box would have been more suitable
cut out with a multicutter would have been neater and a better finish. and probably wouldnt have needed plastered around the box afterwards
gave up after that. also worth nothing that whist messy, for the best part it does appear compliant with BS7671 (at least once plastered and everything screwed back). if youre going to make a snagging list, at least make sure its correct and factual
tbh a decent mud slinger can fix it. definately could be neater and some boxes could be deeper to make it easier for plasterer, but your never going to get it perfect
as most things like this, im going to take a wild guess and say you get what you pay for, and went with the cheapest option...