Black Diamond Roofing vs Master Roofing Company
East Bay Roofing Comparison · Updated January 2026
| Black Diamond Roofing | Master Roofing Company | |
|---|---|---|
| Rating | ★ 4.0 | ★ 5.0 |
| Years Licensed | 11 years | 17 years |
| License # | 996268 | 921058 |
| Workers' Comp | ✓ Yes | ✓ Yes |
| Bond Amount | $25,000 | $25,000 |
| Location | Concord, CA | Oakland, CA |
| Website | www.blackdiamondroofs.com | masterroofingcompany.net |
Our Analysis
On licensing history, Master Roofing Company has been licensed for 17 years, compared with 11 years for Black Diamond Roofing. Both list an active license status, carry workers’ compensation coverage, and maintain a $25,000 bond, which are practical indicators for compliance and risk management.
In customer descriptions, both companies are commonly characterized as professional. Black Diamond Roofing feedback highlights punctuality, communication, and coordination that can support ongoing work for homeowner associations, along with a problem-solving approach. Some comments note that the process may include additional steps, such as returning with a separate proposal after an initial assessment, and experiences are described as mixed.
Master Roofing Company feedback frequently emphasizes responsiveness and efficiency from initial communication through completion, including timely scheduling and clear coordination. Reviews also mention pricing described as fair and competitive, offering options and advice, and work spanning inspections, resealing, repairs, and full replacements for homes and multi-unit properties.
Why choose Black Diamond Roofing?
- ✓ You are in or near Concord/Contra Costa County and want a locally based contractor in that area.
- ✓ Your project involves HOA coordination or community-managed properties where communication and scheduling with multiple stakeholders matters.
- ✓ You prefer a contractor described as punctual and willing to troubleshoot issues during service interactions.
- ✓ You are comfortable with a process that may include follow-up steps (such as a separate proposal after an initial assessment) and want to clarify workflow upfront.
Why choose Master Roofing Company?
- ✓ You are in or near Oakland/Alameda County and want a contractor based in that area.
- ✓ You value a process described as responsive and efficient, with timely scheduling and clear coordination from start to finish.
- ✓ You want a contractor whose customer feedback mentions offering options and advice rather than pushing unnecessary work.
- ✓ Your needs may include a range of services (inspections, resealing, repairs, or full replacement) for single-family or multi-unit properties.
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Frequently Asked Questions
Yes. Both list an active license status, carry workers’ compensation coverage, and maintain a $25,000 bond.
Master Roofing Company has been licensed for 17 years, while Black Diamond Roofing has been licensed for 11 years.
Black Diamond Roofing is described as coordinating projects through homeowner associations and supporting community-managed properties.
Customer descriptions reference inspections, resealing, repairs, and full re-roofing, including work for homes and multi-unit properties.
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.