A contractor has quoted me a large figure for the job of replacing the currently felt-covered flat roof over my garage and part of the house, to include ?1400 for disposal of the felt that will be removed before fibre glass is put on.
I queried this figure and he said the felt is considered to be a hazardous material. It seems he's right, even if the attendance of teams of guys wearing chemical warfare suits won't be required.
But ?1400? The area is about 7 metres x 7 metres.
How can I make some sort of check on what the disposal costs will be?