Tri Valley Roofing vs Black Diamond Roofing
East Bay Roofing Comparison · Updated January 2026
| Tri Valley Roofing | Black Diamond Roofing | |
|---|---|---|
| Rating | ★ 5.0 | ★ 4.0 |
| Years Licensed | 3 years | 11 years |
| License # | 1100411 | 996268 |
| Workers' Comp | ✓ Yes | ✓ Yes |
| Bond Amount | $25,000 | $25,000 |
| Location | Castro Valley, CA | Concord, CA |
| Website | www.trivalleyroofing.com | www.blackdiamondroofs.com |
Our Analysis
Black Diamond Roofing is located in Concord, Contra Costa County, and has been licensed for 11 years with an active status. Feedback describes the company as professional and punctual, with communication and coordination that can support ongoing work for HOA communities. Reviews also note a problem-solving approach and willingness to help during service interactions. Some customers mention that the process may include additional steps, such as returning with a separate proposal after an initial assessment. Both companies list workers’ compensation coverage and a $25,000 bond, providing similar baseline indicators for coverage and bonding.
Why choose Tri Valley Roofing?
- ✓ You want a contractor described as handling a broad mix of residential roofing tasks, including replacements, repairs, gutters, skylights, solar tubes, and dry rot repairs.
- ✓ You value documentation during the job; customers mention photo-based updates that can support communication and insurance-related sharing.
- ✓ Your project is in or near the East Bay area served from Castro Valley, including work on accessory structures.
- ✓ You prefer a process customers describe as efficient in scheduling and timely completion, with attention to jobsite cleanliness and safety.
Why choose Black Diamond Roofing?
- ✓ You want a contractor with a longer licensing history (11 years) and an active license status.
- ✓ Your project involves an HOA or community setting where coordination and ongoing communication are important.
- ✓ You’re comfortable with a workflow where an initial assessment may be followed by a separate proposal step.
- ✓ You prioritize professionalism and punctuality, and you want a contractor described as willing to help and problem-solve during service interactions.
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Frequently Asked Questions
Yes. Both Tri Valley Roofing and Black Diamond Roofing list workers’ compensation coverage and a $25,000 bond.
Black Diamond Roofing has been licensed for 11 years, while Tri Valley Roofing has been licensed for 3 years. Both licenses are listed as active.
Tri Valley Roofing is described as using photos to document conditions and progress, and some customers found this helpful for insurance-related needs.
Black Diamond Roofing is described by customers as having communication and coordination that can support ongoing work for HOA communities.
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.