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Paragon Roofing vs Williams Roofing

East Bay Roofing Comparison · Updated January 2026

Paragon Roofing Williams Roofing
Rating 4.9 4.6
Years Licensed 3 years 32 years
License # 1100626 687391
Workers' Comp ✓ Yes ✓ Yes
Bond Amount $25,000 $25,000
Location Concord, CA Fremont, CA
Website www.paragonroofco.com williamsroofing.net

Our Analysis

Paragon Roofing is based in Concord, Contra Costa County, and has been licensed for 3 years with an active status. Customer feedback most often associates the company with roof replacement and reroofing on both residential and commercial properties. Reported scopes include full and partial replacements, removal of multiple roof layers, vent and decking replacement, and related exterior items such as gutters, eaves, and skylights. Some customers also report that Paragon handled permitting and coordinated final inspections. Locations mentioned by customers extend beyond Concord to parts of the Bay Area, including Walnut Creek, Moraga, Vallejo, Daly City, and San Francisco.

Williams Roofing is based in Fremont, Alameda County, and has been licensed for 32 years with an active status. Customer feedback commonly references responsiveness from initial contact through completion, along with timely scheduling and clear communication. Reviews frequently mention roof repairs and full roof replacements, including addressing leaks and completing projects as promised. Customers also describe a straightforward approach to recommendations, noting that the company does not push unnecessary work and that pricing is viewed as fair. Both companies carry workers’ compensation and maintain a $25,000 bond, based on the provided data.

Why choose Paragon Roofing?

  • You want a contractor customers often hire for full or partial roof replacements and reroofing on residential and commercial properties.
  • Your project may include related exterior components (for example, gutters, eaves, vents, decking, or skylights) as part of the scope.
  • Permitting and inspection coordination is important to you, as some customers report this support.
  • You’re looking for a Concord-based company with customer-reported work performed across multiple Bay Area locations.
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Why choose Williams Roofing?

  • You prefer a Fremont-based contractor with a longer licensing history (32 years) and an active license status.
  • Your project involves roof repair work or a replacement tied to leak issues, which customers commonly mention.
  • You value a straightforward recommendation process, with customer comments indicating no pressure for unnecessary work.
  • Clear communication and timely scheduling are priorities, as these are recurring themes in customer feedback.
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Frequently Asked Questions

Yes. Based on the provided data, both Paragon Roofing and Williams Roofing carry workers’ compensation coverage and maintain a $25,000 bond.

Paragon Roofing is based in Concord in Contra Costa County, California. Williams Roofing is based in Fremont in Alameda County, California.

Williams Roofing has been licensed for 32 years, while Paragon Roofing has been licensed for 3 years, according to the provided data.

Customer feedback for Paragon Roofing mentions work that can include gutters, eaves, skylights, vents, and decking as part of roof replacement or reroofing projects.

Data Sources: License information from California CSLB. Ratings and reviews from Google. Last verified January 13, 2026.

This comparison is based on publicly available information. We recommend getting multiple quotes and verifying all credentials directly before hiring.