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Advanced Roofing Services Inc vs Black Diamond Roofing

East Bay Roofing Comparison · Updated January 2026

Advanced Roofing Services Inc Black Diamond Roofing
Rating 4.3 4.0
Years Licensed 28 years 11 years
License # 748858 996268
Workers' Comp ✓ Yes ✓ Yes
Bond Amount $25,000 $25,000
Location Alameda, CA Concord, CA
Website www.advancedroofingsvcs.com www.blackdiamondroofs.com

Our Analysis

Advanced Roofing Services Inc is located in Alameda (Alameda County) and has been licensed for 28 years with an active license. Black Diamond Roofing is located in Concord (Contra Costa County) and has been licensed for 11 years with an active license. Both indicate workers’ compensation coverage and the same bond amount ($25,000).

In terms of service focus, Advanced Roofing Services Inc is described as handling roofing installations and repairs, positioned for residential roofing needs within its local area. Black Diamond Roofing’s customer feedback specifically references communication and coordination that can support ongoing work for HOA communities, suggesting experience with multi-party coordination, though the provided description does not detail specific service categories beyond roofing.

Customer feedback themes for Advanced Roofing Services Inc include friendly interactions, strong communication during roofing work, and satisfaction with completed roof installations, alongside reports that communication and customer service can be inconsistent. For Black Diamond Roofing, customers describe professionalism and punctuality, with responsiveness and problem-solving noted, while some reviews mention that the process may include additional steps such as returning with a separate proposal after an initial assessment and that service outcomes can vary.

Why choose Advanced Roofing Services Inc?

  • You want a contractor based in Alameda serving Alameda County, which may align with projects in and around Alameda.
  • Licensing tenure is longer (28 years) with an active status, alongside workers’ compensation coverage and a $25,000 bond.
  • The business is described as focusing on roofing installations and repairs, with an emphasis on residential roofing needs.
  • Feedback often mentions quality of completed roof installations and professionalism, but experiences with communication and customer service are described as inconsistent by some customers.
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Why choose Black Diamond Roofing?

  • You are located near Concord or in Contra Costa County and prefer a contractor based in that area.
  • The company has 11 years of licensing history with an active status, plus workers’ compensation coverage and a $25,000 bond.
  • Customer comments highlight professionalism, punctuality, and a problem-solving approach, including coordination that can support HOA-related work.
  • Some customers note an added step where a separate proposal may follow an initial assessment, and service outcomes are described as mixed depending on the job.
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Frequently Asked Questions

Yes. Both list workers’ compensation coverage and a bond amount of $25,000.

Advanced Roofing Services Inc has been licensed for 28 years, while Black Diamond Roofing has been licensed for 11 years.

Advanced Roofing Services Inc is based in Alameda and serves Alameda County. Black Diamond Roofing is based in Concord (Contra Costa County).

Some customer feedback indicates that after an initial assessment, the company may return with a separate proposal, adding an extra step before work proceeds.

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.