TheWrightTiler

grout haze can be removed with a dry cloth like a stockinette roll

as for the socket cuts its his job to do not the sparks

from worktop gap should be equal all along unless worktop uneven then you would cut the tile to fit to the bunker to acheive an equal gap

use a product called lithothin cement away to remove the film

unedged tiles will need to be removed and adhesive scraped off and reapplied, trim isnt expensive

i would not pay this clown anyhting until you are satisified and if tiles are to be removed then its at his expense to purchase new tiles etc

andy