Acker Roofing vs Black Diamond Roofing
East Bay Roofing Comparison · Updated January 2026
| Acker Roofing | Black Diamond Roofing | |
|---|---|---|
| Rating | ★ 4.9 | ★ 4.0 |
| Years Licensed | 12 years | 11 years |
| License # | 993338 | 996268 |
| Workers' Comp | ✓ Yes | ✓ Yes |
| Bond Amount | $25,000 | $25,000 |
| Location | Concord, CA | Concord, CA |
| Website | ackerroofing.com | www.blackdiamondroofs.com |
Our Analysis
For Acker Roofing, the provided information includes a detailed residential service scope: roof repairs, full roof replacements (including tear-offs), roof inspections, and roof cleaning. Customer references also mention related tasks such as addressing leaks, dry rot repair, attic insulation blow-in, and coordinating roofing work with solar panel removal and reinstallation. Projects described include storm-damage repairs, insurance-related inspections/documentation, and scheduled replacements, with notes that the company may work with permitting and inspection requirements when applicable.
For Black Diamond Roofing, the review summary emphasizes professionalism and punctuality, with communication and coordination that can support ongoing work for HOA communities. The data also notes that some jobs may involve additional steps, such as returning with a separate proposal after an initial assessment, and that experiences described are mixed. Unlike Acker Roofing, the provided dataset does not list a detailed set of specific roofing services for Black Diamond Roofing beyond general customer descriptions.
Why choose Acker Roofing?
- ✓ You want a contractor with a clearly stated residential scope in the provided data (repairs, replacements/tear-offs, inspections, and cleaning).
- ✓ Your project may involve related tasks referenced by customers, such as leak troubleshooting, dry rot repair, attic insulation blow-in, or coordinating with solar panel removal/reinstallation.
- ✓ You expect work that may include insurance-related inspections/documentation or storm-damage repair based on customer-described project types.
- ✓ You prefer a provider described as communicative through estimating, scheduling, and completion, with attention to jobsite cleanliness and coordination with permits/inspections when applicable.
Why choose Black Diamond Roofing?
- ✓ You want a contractor described as professional and punctual, with an emphasis on communication and coordination.
- ✓ Your roofing needs may involve ongoing or community-level coordination, since customers reference support for HOA communities.
- ✓ You are comfortable with a process that may include an initial assessment followed by a separate proposal step for some jobs.
- ✓ You want a company with an active license, workers’ compensation coverage, and a $25,000 bond, and you are evaluating fit given that customer experiences are described as mixed in the provided summary.
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Frequently Asked Questions
Yes. Both are listed with active license status and workers’ compensation coverage, and each maintains a $25,000 bond.
Both are based in Concord in Contra Costa County, California. Acker Roofing is described as serving Concord and the broader Contra Costa County area, with some work referenced in nearby communities.
Acker Roofing has specific residential services listed (repairs, full replacements including tear-offs, inspections, and cleaning), plus related work referenced by customers. The provided information for Black Diamond Roofing focuses more on customer experience and coordination rather than a detailed service list.
Black Diamond Roofing is specifically described as having communication and coordination that can support ongoing work for HOA communities.
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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.