Paragon Roofing vs Sierra Roofing and Solar
East Bay Roofing Comparison · Updated January 2026
| Paragon Roofing | Sierra Roofing and Solar | |
|---|---|---|
| Rating | ★ 4.9 | ★ 4.8 |
| Years Licensed | 3 years | 22 years |
| License # | 1100626 | 835854 |
| Workers' Comp | ✓ Yes | ✓ Yes |
| Bond Amount | $25,000 | $25,000 |
| Location | Concord, CA | Dublin, CA |
| Website | www.paragonroofco.com | www.sierraroofing.com |
Our Analysis
Sierra Roofing and Solar is based in Dublin (Alameda County) and has been licensed for 22 years with an active status. Customers frequently describe a process that includes thorough inspections, clear explanations of findings, and detailed quotes outlining scope. Work mentioned includes roof replacements, repairs, and gutter projects, with recurring notes about communication and cleanup. Some customers note scheduling may require planning ahead. Both companies carry workers’ compensation and list a $25,000 bond, and both are described as professional and organized in customer feedback.
Why choose Paragon Roofing?
- ✓ You want a contractor based in Concord, with customer-reported work performed across multiple Bay Area locations (including Walnut Creek, Moraga, Vallejo, Daly City, and San Francisco).
- ✓ Your project involves a broad reroof scope, such as removing multiple roof layers and replacing vents or decking, plus related exterior components like gutters, eaves, or skylights.
- ✓ You prefer a contractor that customers say provided scheduling clarity, timely completion, and jobsite cleanup.
- ✓ Permitting and final inspection coordination are important, since some customers report Paragon handled these steps.
Why choose Sierra Roofing and Solar?
- ✓ You want a contractor based in Dublin with a longer licensing history (22 years) and an active license status.
- ✓ You value a front-end process centered on inspections and documentation, since customers mention thorough inspections, clear explanations, and detailed quotes outlining scope.
- ✓ Your needs include roof replacement or repair work, potentially paired with gutter projects, with customers frequently noting communication and cleanup.
- ✓ You can plan ahead for timing, as some customers report scheduling may require additional lead time.
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Frequently Asked Questions
Yes. The provided data lists both companies as carrying workers’ compensation coverage and maintaining a $25,000 bond.
Paragon Roofing is based in Concord, Contra Costa County, California. Sierra Roofing and Solar is based in Dublin, Alameda County, California.
Customer feedback indicates Paragon Roofing is commonly hired for residential and commercial roof replacement and reroofing, including full or partial replacements, removal of multiple roof layers, and replacement of vents and decking, sometimes along with gutters, eaves, and skylights.
Customers frequently mention thorough inspections, clear explanations of findings, and detailed quotes that outline the scope of work, along with communication during the project and cleanup after completion.
Other East Bay Roofing Comparisons
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.