Hi everybody any help would be appreciated I’m looking to get a new main roof installed on my house. It currently has the original slate roof which has leaks in it and has no breather membrane underneath the tiles, I have been quoted a range of different prices from 6k-18k. Could anybody please advise a roughy quote of cost, things I would want in the roof are redland 49 tiles, breathable membrane, tannelised battens, dry verge system and a bonding gutter system between my new roof and neighbours roof. The house has a flat roof along the side and back of the house so less scaffolding is needed? Any advice would be helpful thank you I have added pictures to describe I live in Harrow London house is semi detached