Top-Rated San Francisco Roofing Companies
6 vetted contractors, thoroughly researched and ranked
Last Updated: January 25, 2026
Our Top Pick
Excelsior Roofing Co.
License #448397 · Verified via CSLB
They are a 100% Union shop with over a century of local history, meaning every technician has completed a rigorous 3-year state-approved apprenticeship.
Platform Scores
(13)
(155)
A+
91%
Union Shop (Local 40)
ARCBAC Member
WSRCA Member
120 years in business, specializing in residential and commercial roofing with a focus on leak detection and union-quality craftsmanship. As San Francisco's oldest roofing firm, they differentiate themselves by employing exclusively union-trained roofers for superior technical execution on complex city roofs. Best for homeowners seeking long-term reliability and proven expertise for flat, shingle, or tile roofs in San Francisco and San Mateo.
Essential Q&A
What makes them stand out?
They are a 100% Union shop with over a century of local history, meaning every technician has completed a rigorous 3-year state-approved apprenticeship.
Who should hire them?
San Francisco homeowners with flat or complex historical roofs who value technical precision and workforce longevity over rock-bottom pricing.
Insider tip
Request an estimate from Mark or Bill Powers directly for their deep historical knowledge of San Francisco roof decks, and be prepared for a lead time as their schedule fills up quickly due to high demand.
Platform Scores
(50)
(135)
A+
9 yrs
77%
Diamond Certified
BBB Torch Award for Ethics
GAF Master Elite Contractor
GAF Authorized
CertainTeed Authorized
24/7 Emergency
50 years in business, specializing in Spray Foam, Metal, and Shingle roofing systems with a focus on energy efficiency. Distinguished by their Diamond Certified status for 9 consecutive years and a BBB Torch Award for Ethics. Best for homeowners seeking high-performance, eco-friendly roofing solutions who value long-term quality over the lowest initial bid.
Essential Q&A
What makes them stand out?
They are the only Bay Area roofing contractor to earn both the Diamond Certified status and the BBB Torch Award for Ethics.
Who should hire them?
Homeowners with flat or low-slope roofs (especially Eichlers) looking for premium spray foam insulation or integrated solar solutions.
Insider tip
Ask for Terry during the estimation process; multiple reviews cite his specific knowledge and honest assessments as a highlight.
Platform Scores
(25)
(116)
A+
96%
CertainTeed Master Shingle Applicator
Polyglass Gold Contractor
CertainTeed Authorized
Polyglass Authorized
24/7 Emergency
35 years in business, specializing in residential roof replacement and repairs in San Francisco and Daly City. Customers consistently praise their ability to deliver high-quality workmanship at significantly lower prices than competitors. Best for budget-conscious homeowners who value longevity and value over white-glove communication speed.
Essential Q&A
What makes them stand out?
They consistently offer bids 30% lower than competitors while maintaining a 96% superior quality rating from Consumer's Checkbook.
Who should hire them?
Homeowners in San Francisco and Daly City with older homes who need affordable, high-quality replacement but can tolerate slower initial communication.
Insider tip
They are in extremely high demand and may be slow to return initial calls, so book your estimate well in advance of the rainy season.
Platform Scores
(17)
(60)
A+
Established in 1978, this veteran contractor specializes in residential and commercial roofing with a focus on flat roofs and historic restoration. Reviewers and search data highlight their use of union-trained labor and involvement in high-profile municipal projects as key differentiators. Best for homeowners seeking long-term durability and those with complex flat or low-slope roofing systems.
Essential Q&A
What makes them stand out?
They employ union-trained roofers who have completed a 3.5-year safety and installation course, ensuring a higher standard of craftsmanship than typical residential crews.
Who should hire them?
Homeowners with flat/low-slope roofs or historic properties who prioritize technical precision and longevity over the lowest initial bid.
Insider tip
Ask about their foreman-led inspection process, as their structured supervisory model is frequently cited as a reason for their high consistency on complex jobs.
#5
Mr. Roofing
Platform Scores
(103)
(112)
A+
16 yrs
94%
GAF Master Elite Contractor
Owens Corning Platinum Preferred Contractor
Diamond Certified
GAF Authorized
Owens Corning Authorized
24/7 Emergency
37 years in business, specializing in residential roofing, solar integration, and skylights. Distinguished by their 'proven process' and Diamond Certified status, maintaining a 16-year streak of independently verified quality. Best for homeowners valuing long-term quality and comprehensive warranty protection over the lowest initial bid.
Essential Q&A
What makes them stand out?
They are one of the few contractors holding both GAF Master Elite and Diamond Certified status, offering a uniquely rigorous 'proven process' for project management.
Who should hire them?
Homeowners in San Mateo County looking for a 'forever roof' with integrated solar or skylights who are willing to pay a premium for verified reliability.
Insider tip
Ask about their 'Golden Pledge' warranty options; as a Master Elite contractor, they can offer extended factory-backed coverage that standard roofers cannot.
Platform Scores
(96)
(25)
A-
Less than 1 year in business, specializing in residential roofing and repairs in San Francisco. Differentiates itself with exceptional responsiveness and personal oversight from the owner, Michael. Best for homeowners prioritizing direct communication and speed over long-established company history.
Essential Q&A
What makes them stand out?
Extremely high responsiveness and personal project management by the owner, Michael, which is rare for the industry.
Who should hire them?
Homeowners in San Francisco needing urgent repairs or straightforward replacements who value communication and speed.
Insider tip
Mention the 'fair pricing' noted in online reviews when negotiating, as early customers frequently cited reasonable quotes compared to competitors.