Question 1

How long does a typical roof replacement take in San Francisco?

Accepted Answer

For an average-sized residential home, the physical teardown and installation usually take between 2 to 5 days. However, this timeline can vary depending on the complexity of the roof pitch, accessibility in tight SF neighborhoods, and weather conditions.

Question 2

Do I need a city permit for a simple roof repair or replacement?

Accepted Answer

Yes. The San Francisco Department of Building Inspection (DBI) requires a building permit for all re-roofing projects to ensure compliance with local structural and fire safety codes. Working with a licensed contractor like Golden Heights Roofing ensures all engineering and city permits are handled legally and correctly.

Question 3

Can you install a new roof over my old one (reroofing), or do you have to tear it off?

Accepted Answer

While California building codes sometimes allow up to two layers of shingles, we almost always recommend a complete tear-off. Tearing off the old material allows our team to inspect the wooden decking underneath for hidden dry rot or water damage, ensuring your new roof has a solid, healthy foundation.

Question 4

What is the best roofing material for the San Francisco climate?

Accepted Answer

It depends heavily on your property structure. For sloped residential homes, high-quality architectural asphalt shingles offer fantastic durability against coastal moisture and wind. For the many flat or low-slope roofs across the Mission, Sunset, or Richmond districts, modern systems like TPO or high-grade modified bitumen are essential for absolute waterproofing.

Question 5

Are there any hidden costs I should watch out for in roofing estimates?

Accepted Answer

The most common "hidden cost" in roofing is discovered after the old roof is torn off — unforeseen dry rot or damaged plywood decking. A transparent contractor will always include a clear hourly or per-sheet rate for wood replacement in their initial contract so there are zero surprises on your final bill.

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