I have been a fully qualified roofer for 15 years I have worked on all aspects of roofing work throughout my carrer including all roofline work and lead work
I have started my own company now with great tradesmen from around Central Scotland
We wont be beaten by any genuine written quotation
Yes they should have sourced tiles the same as your ones but if you have had your roof done you should have already had a bonding gutter installed on the wall head to separate the roofs
If you have a flat roof at the back then i would say you would only need scaffold to one side without the dormer as there should be enuff access on the dormer to do any work needed even with a scaffold i would estimate the work price to be round about 1600 with scaffold
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