My tints were originally done by Pentagon in Heywood (5mins from Bury), Bolton Audi use them to do their cars which is where my car was originally bought from by the previous owner and i bought the car 2nd hand from the same place.
Last mth the passenger window tint started to peel as a litle bit was catching on the window seal, i rang Bolton Audi and they got Pentagon to ring me and they did so within 10mins and arranged for the tint to be sorted.
I drove up there and they were packed out but they stopped one job they were on and started work on mine, cracking bunch of guys, really friendly and professional.
I would very much reccomend them for sure, also some places trim the tinted part of the window which goes into the door seal leaving around 5mm of untinted window at the top but pentagon file it so that the whole window is tinted including the part that goes into the window seal.
Mine peeled because not enough was filed away when it was fitted but to be honest i don't really mind as they pulled all the stops out to sort it for me.