We redid our bathroom, and the contractor came to discuss what needed to be done. We agreed on a quote, and he assured us that his quotes are usually pretty accurate, and if something was unforeseen, it would change by a small amount, around £50.
Now that work is nearly complete, his final quote has increased by a few hundred pounds. He charged for some extra materials which were not previously mentioned, and £180 because "Lath and Plaster walls around bath were too soft to tile over and had to be removed, including waste disposal and extra materials."
The bathroom is small, and the job straightforward - just taking out old items and refitting new ones. We have already paid separately for waste removal and extra materials, but now with another addition of £180 (for more waste removal again, extra materials and plasterboard) , we're getting quite fed up with all these extra little additions that get added in with each new update he gives.
Are these extra additions reasonable? Given that he has come a few times to look at our old bathroom and should have a pretty good idea that our building is old and the walls are plasterboard?
Any advice would be much appreciated, it's our first time getting something done in our flat.