Calisco Roofing vs Black Diamond Roofing
East Bay Roofing Comparison · Updated January 2026
| Calisco Roofing | Black Diamond Roofing | |
|---|---|---|
| Rating | ★ 5.0 | ★ 4.0 |
| Years Licensed | 3 years | 11 years |
| License # | 1105093 | 996268 |
| Workers' Comp | ✓ Yes | ✓ Yes |
| Bond Amount | $25,000 | $25,000 |
| Location | Brentwood, CA | Concord, CA |
| Website | caliscoroofing.com | www.blackdiamondroofs.com |
Our Analysis
Calisco Roofing is based in Brentwood and is described as providing residential services including inspections, leak repairs, maintenance, and roof replacement. Examples mentioned include low-slope roofing, tile roof maintenance and repairs, PVC membrane roofing, torch-down roofing, gutter cleaning, and roof vent/flashing installation. Customer feedback commonly highlights timely scheduling for estimates and repairs, clear explanations of options and scope, and thorough inspections supported by before-and-after photos. Cleanup and orderly job sites are also frequently referenced.
Black Diamond Roofing is based in Concord. Customer feedback describes the company as professional and punctual, with communication and coordination that can support ongoing work for HOA communities. Reviews also note that some jobs may involve an additional step, such as returning with a separate proposal after an initial assessment. Overall feedback is described as mixed, with both positive notes on responsiveness and professionalism and some less positive service outcomes.
Why choose Calisco Roofing?
- ✓ You want residential roofing services with examples spanning leak repairs, maintenance, and full roof replacement work.
- ✓ You value detailed inspection practices, including documentation such as before-and-after photos.
- ✓ You prefer clear communication about options, scope, and pricing, along with orderly cleanup after the job.
- ✓ You are located in or near Brentwood and want a contractor operating locally within Contra Costa County.
Why choose Black Diamond Roofing?
- ✓ You prefer a contractor with a longer licensing history (11 years) while still holding an active license, workers’ comp, and a $25,000 bond.
- ✓ You need coordination that can support ongoing or community-based work, including HOA-related projects.
- ✓ You are located closer to Concord and want a contractor based there.
- ✓ You are comfortable with a process that may include an initial assessment followed by a separate proposal step before work proceeds.
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Frequently Asked Questions
Yes. Both Calisco Roofing and Black Diamond Roofing have active license status and carry workers’ compensation coverage, and each maintains a $25,000 bond.
Black Diamond Roofing has been licensed for 11 years, while Calisco Roofing has been licensed for 3 years.
Calisco Roofing is described as providing residential inspections, leak repairs, maintenance, and roof replacement, with project examples including low-slope roofing, tile roof repairs, PVC membrane roofing, torch-down roofing, gutter cleaning, and roof vent/flashing installation.
Customer feedback indicates that some jobs may involve an initial assessment followed by returning with a separate proposal before the work is finalized.
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.