Possible symptom
Ceiling stain after rain
Possible water entry through covering, flashing, wall junction or another source.
Next step: Arrange assessment if new or worsening.
Know the warning signs
What could be wrong with my roof?
A visual problem finder to help you describe what you can see, understand possible causes and judge when a professional assessment may be needed.
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Photorealistic example image — illustrative only, not Sussex Roof Care Ltd completed work.
Choose the symptom you have noticed
Use these categories to narrow the guide. They describe possible causes rather than confirmed diagnoses.
Possible symptom
Slipped or missing tile
Wind, age or failed fixings can expose underlying layers.
Next step: Do not attempt to refix from the roof.
Possible symptom
Chimney staining or crumbling
Flashing, pointing or masonry may need assessment.
Next step: Keep clear if masonry appears loose.
Possible symptom
Flat roof ponding or bubbling
Drainage, substrate condition or membrane detail may be involved.
Next step: Do not assume the membrane alone is at fault.
Possible symptom
Overflowing gutters
Leaves, outlet blockage, alignment or damaged joints may be responsible.
Next step: View from a safe position only.
Possible symptom
Ridge tile or roofline movement
Roof edges and ridge details are exposed to wind and weather.
Next step: Stay clear of falling debris.
Why the visible leak may not be the source
Water can travel along rafters, underlay, timber or masonry before it appears on a ceiling. A damp patch below a chimney does not automatically mean the chimney flashing is defective; wind-driven rain, masonry or nearby junctions can also be involved.
Useful information to record
- When the symptom first appeared and whether it follows heavy rain or strong wind.
- Whether water is entering near a chimney, roof valley, external wall, skylight or flat-roof edge.
- Any visible damage photographed safely from ground level.
- Whether it is a one-off event or has happened repeatedly.
If water is affecting electrical fittings, keep clear and seek appropriate electrical and emergency advice. Do not investigate by climbing onto the roof. Read the leaks and storms guide for immediate precautions.
More roofing advice
Roof Guide →Roof Types →Roof Components →Flat Roofs →Leaks & Storms →Repair or Replace →Maintenance →Roof Costs →Inspection Checklist →
Understand the problem before choosing the solution.
Sussex Roof Care Ltd shares general roofing information to help local homeowners make informed decisions. This material is educational, not a diagnosis or an offer of immediate attendance.
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