Roofing in San Anselmo, CA

Serving San Anselmo and Surrounding Areas

Living in Mill Valley means your roof faces a few specific enemies. First is moisture. The coastal fog and morning dew keep your roof damp for hours, which leads to moss, mildew, and rot — especially on wood shakes and older asphalt shingles. Second is the wind. Winter storms can gust over 50 mph through the canyons, lifting shingles and damaging flashing. Third is debris. With so many redwoods and oaks around, your gutters fill fast and leaves trap moisture against the roof deck. I see these issues every week. The fix isn’t just patching a leak — it’s addressing the root cause. That might mean installing copper strips to stop moss growth, upgrading to Class 4 impact-resistant shingles, or adding better underlayment to handle the constant damp. If you’ve noticed dark streaks, curling shingles, or water stains on your ceiling, don’t wait. A small problem today turns into a $5,000 repair tomorrow.