Roofing tar — San Mateo, CA

Last updated: September 24, 2026

What affects the price

Several things change the final bill when you replace a roof. The total area of your home is the biggest factor, followed by the specific materials you choose, like asphalt shingles versus metal or tile. We also look at the pitch or slope of your roof and how many layers of old material need to be pulled off before we start. If there is hidden wood rot or damaged decking underneath, that adds to the labor and supplies required.

About this service

Roofing tar is a thick, viscous substance used as a sealant or adhesive for repairs, particularly around flashings and chimneys. It is effective for emergency leak patching because it hardens into a waterproof barrier. You generally use this when you need to seal small gaps or secure loose flashing quickly. While it is a useful temporary fix, it is not a substitute for proper structural repairs. It is best used as a stop-gap measure until a professional can perform a permanent fix.

Frequently asked in San Mateo

Also serving nearby: Hayward · Daly City · Oakland · Sunnyvale · Fremont

All cities in California →

More on this: ENERGY STAR roofing — cool roof efficiency.

Service area details

Serving all of San Mateo — population 101,327; about 8,350 residents per square mile across 12.1 sq mi. ZIP codes covered include 94401, 94402, 94403, 94404, 94497.

Neighborhoods served in San Mateo: Aragon, Bay Meadows, Burlingame Terrace, Edgewater, Howard Park, San Mateo Village — and every surrounding area.