Estimate - replace dormer roof and add felt to roof

[Ft23]

Hello

Looking for a ballpark estimate of costs to:

• replace the flat roof of a loft dormer extension. Loft is about 25-30m2.

And

• refurbish house roof to fit a waterproof breathable felt layer.

The house is a 1920s semi with a conservatory and dormer loft extension. Both roofs would need to be accessed by scaffolding.

Has anyone had either or both done and could provide a ballpark cost?
Based in Leeds. Thanks

Hi, my husband is roofer, he said do you have any pictures (if not too outing) and he can he’ll give an estimate.

We’re not actually that far from you (Hull).

Thanks - will DM you!