Black Diamond Roofing vs Symplify Roofing
East Bay Roofing Comparison · Updated January 2026
| Black Diamond Roofing | Symplify Roofing | |
|---|---|---|
| Rating | ★ 4.0 | ★ 4.9 |
| Years Licensed | 11 years | 2 years |
| License # | 996268 | 1108246 |
| Workers' Comp | ✓ Yes | ✓ Yes |
| Bond Amount | $25,000 | $25,000 |
| Location | Concord, CA | Walnut Creek, CA |
| Website | www.blackdiamondroofs.com | symplifyroofing.com |
Our Analysis
In customer descriptions, Black Diamond Roofing is often characterized as professional and punctual, with communication and coordination that can support ongoing work for homeowner associations (HOAs). Feedback also notes that some jobs may require additional steps, such as returning with a separate proposal after an initial assessment, and experiences appear mixed depending on the job.
Symplify Roofing is commonly described as responsive and professional from estimate through completion, with frequent mentions of clear communication, detailed explanations, regular updates, and organized project management. Reviews also reference efficient timelines, cleanup after completion, and satisfaction with workmanship and materials, along with an approach that emphasizes assessing needs and explaining options rather than pressuring customers.
Why choose Black Diamond Roofing?
- ✓ You want a Concord-based contractor serving Contra Costa County, with 11 years of licensing history and an active license.
- ✓ You prefer a company noted for professionalism and punctuality, including coordination that can support HOA-related work.
- ✓ You are comfortable with a process that may include follow-up steps, such as receiving a separate proposal after an initial assessment.
- ✓ You value documented workers’ compensation coverage and a $25,000 bond as part of your contractor screening.
Why choose Symplify Roofing?
- ✓ You want a Walnut Creek-based contractor serving Contra Costa County, with an active license and 2 years licensed.
- ✓ You prioritize frequent updates, clear explanations of the roofing process, and organized communication from estimate through completion.
- ✓ You want a contractor often described as efficient on timelines and attentive to cleanup after the work is finished.
- ✓ You prefer an approach described as focused on inspection, needs assessment, and options rather than pressure during the decision process.
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Frequently Asked Questions
Yes. Both Black Diamond Roofing and Symplify Roofing list workers’ compensation coverage and a $25,000 bond.
Black Diamond Roofing is based in Concord, and Symplify Roofing is based in Walnut Creek. Both are described as serving Contra Costa County, California.
Black Diamond Roofing is listed as licensed for 11 years, while Symplify Roofing is listed as licensed for 2 years. Both licenses are shown as active.
Customer summaries for Black Diamond Roofing mention professionalism, punctuality, and coordination that can support HOA work, with some jobs involving additional steps such as a separate proposal after assessment. For Symplify Roofing, summaries commonly mention responsiveness, detailed explanations, regular updates, organized project management, 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.