Shingle roofs
- Granules collecting at downspouts.
- Shingles curling at the edges or cracking across the tab.
- Bare spots where the black mat shows.
Tile roofs
- Cracked or slipped tiles, especially along valleys and hips.
- Stains on ceilings under valleys after rain.
- Tiles that look fine but leak: the underlayment underneath is often the problem.
Flat and Eichler roofs
- Puddles that last for days.
- Blisters, cracks or open seams around skylights and vents.
- Water spots on exposed beam ceilings.
Local patterns
South Bay roofers commonly see sun-cracked and curling shingles on south- and west-facing slopes, granule loss on 1990s tract re-roofs, and ponding or worn membranes on Eichler and other flat roofs.
Next step
A written assessment with photos tells you which of these you have and whether it's time.
Every roofer we work with is licensed, insured and highly reviewed by Bay Area homeowners.
Get a free replacement quoteFrequently asked questions
My tile roof leaks but the tiles look fine. Why?
Water is getting past worn underlayment. Relaying tile over new underlayment is the usual fix.
Are Eichler leaks always roof leaks?
Often, but check skylights, beam ends and flashing too.
Should I get the roof checked before summer?
Before winter is better, so problems are fixed before the rain.
Sources
Sources reviewed November 11, 2026. Figures are published estimates and official fees, not quotes. Confirm prices, permits and requirements with your contractor and building department. This page is general information, not legal or insurance advice.