Valleys, dormers and chimney junctions
For a house with a multi-part roof, the largest slope is not necessarily the source of a leak. Smaller junctions and drainage details can determine the repair needed.
Finding the cause
Ask for the condition of each relevant detail to be recorded, with photographs that connect the defect to the proposed work. If re-roofing is recommended, the quotation should state how flashings, ventilation, valleys and roof edges are treated alongside the new covering.
Planning your roofing work
Mention basement-level rear elevations, side passages and roof sections above glazed additions where present. The real working height and access route may differ from the view at the front.
What belongs in your quote
A clear quote sets out the materials, access and waste removal, as well as the repair itself. It should also explain what happens if opening the roof reveals further damage, so you know how any extra work will be agreed.
Use the roofing quotation checklist or understand the main cost factors.