Valleys collect runoff from adjoining roof slopes, so debris, damaged covering, and flashing details deserve attention when leaks occur nearby. The visible valley surface is only part of the water-management assembly.
What to do next
Ask whether the evaluation includes the upstream area, transitions, and the condition beneath damaged materials. A proposal should explain what will be removed, what will be restored, and how adjoining roof coverings will be protected during access.
Related Perkins guidance
Contact Perkins Roofing to discuss your roof and the appropriate next step.