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High Definition Solar vs GBR Roofing
Contra Costa Roofing Contractors Comparison · Updated March 2026
High Definition Solar brings 16 years of solar installation experience versus GBR Roofing's one year as a licensed roofing specialist.
| High Definition Solar | GBR Roofing | |
|---|---|---|
| Rating | ★ 4.1 | ★ 5.0 |
| Years Licensed | 16 years | 1 years |
| License # | 949189 | 1126596 |
| Workers' Comp | ✓ Yes | ✓ Yes |
| Bond Amount | $25,000 | $25,000 |
| Location | Concord, CA | Walnut Creek, CA |
| Website | highdefinitionsolar.com | www.gbrroof.com |
Key Differences
What Customers Say
High Definition Solar
Customers consistently praise professional installation execution, no-pressure sales consultations, and responsive long-term service relationships spanning multiple years after installation.
GBR Roofing
Customers emphasize detailed project management, thorough communication throughout the process, and on-time completion with strong attention to detail during execution.
Key Takeaway: High Definition Solar's feedback reflects years of ongoing customer relationships and post-installation support, while GBR Roofing's reviews focus on project execution quality during their first year of operation.
Customer Reviews
High Definition Solar
Super effort to install my job on the scheduled day. The crew arrived at exactly 8:oo AM as promised and were completely finished at 2:00 pm. Everything worked! The crew was very professional. I aam ...
Quick response, took time to explain the process and were able to process everything on time. It went smoothly. Jairo was super helpful and patient!
We had HD Solar do a big install for us in Richmond California. They did a great job, very professional, and we love saving huge amounts of money of electricity now! Plus, no more power outages due to...
GBR Roofing
Everything was smooth and easy. Roi and his foreman were easy to work with and pleasant to be around.
I recently had Adi from Green Bay Remodeling come out to inspect a leak in my roof, and I’m extremely satisfied with the experience. He arrived quickly, was very professional, and got straight to th...
We had a great experience working with Roi as our project manager on a metal roof installation. From start to finish, Roi was professional, communicative, and very detail-oriented. He kept us updated ...
Consider High Definition Solar if...
- ✓ Your project involves solar panel installation or adding solar to an existing roof, where their 16 years of electrical and structural integration experience directly applies
- ✓ Your roof is older or may have hidden damage that requires experienced diagnosis during solar assessment, as their crews have encountered structural complications across thousands of installations
- ✓ You value a proven track record of long-term service relationships, with documented customer support extending back to systems installed in 2012
- ✓ You need roofing work specifically to support solar installation, where their dual capability eliminates coordination between separate contractors
Consider GBR Roofing if...
- ✓ Your project is purely roofing work without solar components, where their specialized focus on roofing materials and techniques is most relevant
- ✓ You're installing specialty roofing materials like standing seam metal or commercial applications that align with their documented project experience
- ✓ You prioritize detailed project management and communication protocols, which their reviews consistently highlight as a strength
- ✓ You need emergency leak repair or time-sensitive roofing work completed before seasonal weather, where their documented same-day response applies
Questions to Ask Before Hiring
- → Ask GBR Roofing for references from projects completed in their first year that involved complications or unexpected structural issues, and how they handled problem-solving
- → Ask High Definition Solar whether your roofing work will be handled by their core installation crews or subcontracted, and what their specific roofing warranty covers beyond solar-related work
- → If your project involves both roofing and solar, ask each company how they coordinate structural reinforcement requirements with electrical installations
- → Ask both companies about their crew stability and whether the same teams who did their reviewed projects will be working on yours
The Bottom Line
If your project involves solar installation or combines roofing with solar, High Definition Solar's 16 years of integrated experience and proven long-term service record make them the clear choice despite their secondary roofing focus. For standalone roofing projects on straightforward structures, GBR Roofing's specialized focus and strong project management may serve you well, but their one-year licensing history represents meaningful risk if your project encounters complications. Homeowners with older roofs, complex structures, or any solar considerations should prioritize High Definition Solar's veteran status. Those pursuing pure roofing work on newer homes with standard configurations can consider GBR Roofing while acknowledging you're working with a contractor still building their problem-solving track record.
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Frequently Asked Questions
The one-year licensing history means GBR Roofing hasn't yet encountered the full range of complications that arise in roofing projects—hidden dry rot, unexpected structural issues, or difficult permitting situations that experience helps navigate. While they may execute standard roofing replacements professionally, you're taking on more risk if your project reveals unexpected problems. For straightforward roofing replacements on newer homes, this matters less than for older properties or complex roof structures.
High Definition Solar performs roofing work primarily in connection with solar installations, which means their roofing expertise serves solar project needs rather than representing their core specialty. While they have 16 years of experience working on roofs and customer feedback mentions roof replacements, a dedicated roofing contractor like GBR Roofing focuses exclusively on roofing materials, techniques, and applications. For a pure roofing project without solar components, you should ask High Definition Solar directly about their roofing-specific warranty terms and crew experience.
Choosing High Definition Solar for a roof replacement you'll later equip with solar eliminates the risk of a future solar installer voiding your roof warranty or discovering the roofing work wasn't structurally adequate for panel loads. They can reinforce areas where mounting hardware will attach and ensure flashing details accommodate future penetrations. However, if your solar timeline is more than two years out, you're paying for integration expertise you won't use immediately, and GBR Roofing's roofing-focused approach may deliver better value for the current project.
High Definition Solar's 16-year history means they've built relationships with inspectors, developed protocols for permit complications, and accumulated solutions to problems newer contractors haven't encountered yet. If your project reveals unexpected issues—structural damage, code interpretation questions, or material failures—their depth of experience provides more pathways to resolution. GBR Roofing will need to problem-solve in real-time for situations outside their one-year experience base, which can extend timelines and potentially increase costs when complications arise.
Looking for the Best?
See our ranked list of top roofing contractors in Contra Costa.
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How We Compare Contractors
License Verification
All license data is sourced from official California CSLB records and verified regularly.
Review Analysis
Customer reviews are aggregated from Google and analyzed to identify patterns in service quality.
Detailed Comparison
We analyze credentials, insurance, experience, and feedback to highlight meaningful differences.
Not all licensed contractors are created equal. While a valid license is the baseline requirement in California, contractors can vary significantly in experience, insurance coverage, and customer satisfaction.
- Experience matters: A contractor with 15+ years of experience has likely encountered and solved problems that newer contractors haven't faced yet.
- Workers' compensation protects you: If a contractor without workers' comp insurance has an employee injured on your property, you could be held liable.
- Reviews reveal patterns: Individual reviews can be misleading, but patterns across many reviews often reveal a contractor's true strengths and weaknesses.
- Bond amounts vary: A contractor's bond provides financial protection if they fail to complete work as agreed. Higher bonds offer more protection.
Taking time to compare contractors on these factors can save you from costly mistakes and help ensure your project is completed by a qualified professional.
Data Sources: License information from California CSLB. Ratings and reviews from Google. Last verified March 12, 2026.
This comparison is based on publicly available information. We recommend getting multiple quotes and verifying all credentials directly before hiring.
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