Public Records Check
- License Found As of Jun 19, 2026, the California state licensing board shows an active license for Excelsior Roofing Co.: C39 - Roofing 448397. An active license means the state currently authorizes this contractor to do this work. It doesn't speak to the quality of their work or their current insurance. License status can change, so you can confirm it's still active anytime with the California state licensing board.
- Registered Corporation The California Secretary of State listed Excelsior Roofing Co. as Active when we last checked on Jun 19, 2026, registered since 1983. You can confirm it's still current with the California Secretary of State.
- Business Address Excelsior Roofing Co.'s listed address at 1340 Underwood Ave, San Francisco, CA 94124 appears to be a business address. This means the company operates from a real, locatable address rather than a mailbox or PO box, which can make it easier to reach them or resolve issues. Many roofers legitimately work from a home address, so this doesn't speak to the quality of their work, license, or insurance.
- 0 Credentials Our automated search didn't find a manufacturer certification for Excelsior Roofing Co.. Many reputable roofers aren't certified by any manufacturer, often by choice, so this isn't a sign of a problem. If a manufacturer-backed warranty matters to you, ask the contractor which certifications they carry.
- Excellent Ratings Across the platforms we identified for Excelsior Roofing Co. (Google, Yelp, the Better Business Bureau), the blended average is 4.7 out of 5, which we label Excellent. This is a plain average of public customer ratings, not a RooferWatch score. A high average reflects past customers' experiences, not a guarantee of yours, so read the underlying reviews and weigh them yourself.
We verified 4/5 public records for Excelsior Roofing Co.. The more of a company's record you can check, the more informed your hiring decision.
Contact Info
-
Phone
This is either a business landline or VoIP number (not a mobile number).(415) 822-4488
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Primary Address
1340 Underwood Ave, San Francisco, CA 94124
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Website
excelsiorroofing.com
- Socials
Company Description
Excelsior Roofing Co. has served San Francisco since 1906, operating for over 100 years as a licensed roofing contractor. The company holds California State Contractor's License #448397 and is licensed, bonded, and insured. It provides residential and commercial roofing services throughout San Francisco and San Mateo counties, including roof repairs, maintenance, new roof installation, gutter services, and skylight work. The company is rated A+ by the Better Business Bureau and holds a 4.7-star rating from over 150 customers on Yelp. Services span a wide range of roofing applications and safety standards.
Services Offered
- Roof RepairFixing localized damage such as leaks, missing shingles, damaged flashing, or deteriorated sections without replacing the entire roof.
- Roof MaintenanceRegular upkeep such as cleaning gutters, removing debris, checking seals, and minor repairs to extend roof life and prevent problems.
- New Roof InstallationInstalling a complete new roof system on a structure that currently lacks one or needs full replacement.
- Gutter InstallationSetting up gutters and downspouts to channel water away from the roof and foundation, preventing water damage and erosion.
- Skylight InstallationCutting and framing an opening in the roof and installing a window unit to bring natural light into interior spaces.
- Commercial RoofingRoof installation, repair, and maintenance on office buildings, retail spaces, and other commercial structures, often involving flat or low-slope systems.
- Residential RoofingRoof work on single-family homes and small residential properties, adapted to typical house construction and materials.
Company Info
- License Number
- 448397
- Issuing Authority
- CA CSLB
- License Type
- C39 - Roofing
- Company Name
- EXCELSIOR ROOFING CO
- Entity Type
- Corporation
- License Issued
- Nov 3, 1983
- License Exp
- Nov 30, 2027
- License Classifications
- C39 - ROOFING
- Bond Amount
- $25,000
- Bond Number
- 9042040
- Workers Comp #
- EXWC625386
- Workers Comp Exp
- Oct 1, 2026
- State Entity ID
- 1147559
- Company Formation Date
- Jul 20, 1983
- Company Age
- 43.0 years old
- Company Formation State
- CA
- Principal Address
- 1340 UNDERWOOD AVE, SAN FRANCISCO, CA 94124
- Mailing Address
- 1340 UNDERWOOD AVE, SAN FRANCISCO, CA 94124
- Registered Agent
- MARK D. POWERS
- Agent Address
- 1340 UNDERWOOD AVE, SAN FRANCISCO, CA 94124
- Address Type
- Commercial
- Multi-State Company
- No
- Website Age
- 16.3 years old
Inspections and Violations
U.S. and California OSHA dataReviews and Reputation
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Avg. Rating
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BBB A+
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Google
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Yelp
Reviewers consistently report positive experiences with Excelsior Roofing Company. Several customers describe the crew as punctual, professional, and detail-oriented, with excellent communication throughout projects. Reviewers praise team members Eduardo and Mark specifically for being knowledgeable, responsive, and accommodating. Multiple customers note that while pricing may be higher than competitors, they felt the quality of workmanship and service justified the cost. Reviewers report the company handles various services - roof replacement, maintenance, and leak repairs - efficiently and thoroughly. Several customers highlight exceptional cleanup and attention to detail. One reviewer mentioned appreciating the company's honesty when evaluating multiple bids. Customers describe the overall experience as straightforward and stress-free, with one noting the company went beyond contracted scope without complaint. Multiple reviewers indicate they would recommend the company and some report using them repeatedly over many years.
Review Signals Over Time
By sheer volume of Google reviews (a measure of how much feedback a firm has gathered) Excelsior Roofing Co. ranks 19th of the 21 roofers we track in San Francisco, ahead of about 10% of them. Over the past year it has pulled in 3 reviews - the most recent 5 months ago - for a rate of roughly 0.1 reviews per month, which is slower than approximately 100% of the other San Francisco roofers. Its 4.5-star average rating sits below the San Francisco median of 4.9 stars. The owner responds to 0% of reviews, which is in line with the typical San Francisco roofer’s rate of 3%.
