Compare Local Pros
Acker Roofing vs Calpro Solar
Contra Costa Roofing Contractors Comparison · Updated March 2026
You're comparing a roofing contractor to a solar installer—these companies serve completely different needs and are not direct alternatives.
| Acker Roofing | Calpro Solar | |
|---|---|---|
| Rating | ★ 4.9 | ★ 5.0 |
| Years Licensed | 12 years | 37 years |
| License # | 993338 | 549715 |
| Workers' Comp | ✓ Yes | ✓ Yes |
| Bond Amount | $25,000 | $25,000 |
| Location | Concord, CA | Brentwood, CA |
| Website | ackerroofing.com | calprosolar.com |
Key Differences
What Customers Say
Acker Roofing
Customers consistently praise Acker Roofing for responsive communication, thorough roof inspections with clear explanations, and professional crews that maintain clean jobsites through completion.
Calpro Solar
Calpro Solar receives frequent mention for consultations without sales pressure, on-time project completion, and responsive service after installation when system questions arise.
Key Takeaway: Acker's feedback centers on problem diagnosis and project coordination during roofing work, while Calpro's emphasizes a low-pressure sales approach and reliability in both installation timelines and ongoing service—reflecting their different trades and customer interaction points.
Customer Reviews
Acker Roofing
They are quick to respond and have work quality they honor the work warranty no questions asked why rain or shine they come to repair
Acker Roofing did a great job of replacing our roof. They listened to my specific needs, found a good solution, and troubleshooted problem areas. They were able to fit us into their schedule and the j...
Dean and Acker came recommended to us by a State Farm insurance agent, and we can see why. Dean quickly turned around a fair quote for roofing our house. Rodigo and his partner worked diligently on ev...
Calpro Solar
Very great full to George and his family for quick response and taking care of the issue with my Solar. He had installed Solar with backup battery two years ago through Sungrade based out of Walnut Cr...
To all of you out there considering various solar companies, I had the good fortunate to work with CalPro Solar. Prior working with them, I went through several other solar providers. Each one had the...
Super professional and friendly people doing great work. It has been a pleasure working with them.
Consider Acker Roofing if...
- ✓ You need roof repairs, leak troubleshooting, or a complete roof replacement and aren't planning solar installation
- ✓ Your roof has storm damage, dry rot, or other structural issues that need addressing before considering any solar project
- ✓ You're preparing your roof for an insurance renewal and need cleaning or documentation of roof condition
- ✓ You need a roofing contractor who handles permitting and can coordinate with solar installers if you decide to add panels later
Consider Calpro Solar if...
- ✓ You're installing solar panels and need a veteran installer with 37 years of experience navigating utility requirements and local permitting
- ✓ You want to add battery backup to gain energy independence or protection against power outages
- ✓ You're comparing solar companies and want one known for consultations without high-pressure sales tactics
- ✓ Your roof is in good condition with at least 15-20 years of remaining life to support a solar installation
Questions to Ask Before Hiring
- → If considering solar: Ask Calpro Solar to assess your roof condition and whether any roofing work is needed before installation, or if they coordinate with roofing contractors
- → If your roof needs work: Ask Acker Roofing about the remaining lifespan after repairs and whether the roof structure can support solar panels if you're considering that option
- → Ask about timeline coordination if you need both roofing work and solar installation—which should happen first and how long between projects
The Bottom Line
These contractors serve entirely different needs and aren't alternatives to each other. Choose Acker Roofing if you need any roofing work—repairs, replacements, leak troubleshooting, or preparing your roof for the long term. Choose Calpro Solar if your roof is in solid condition and you're ready to install solar panels and battery backup. If you're planning both, start with Acker or another roofing contractor to ensure your roof will support solar panels for decades, then move to Calpro for installation. The only reason to contact both is if you're unsure about your roof's condition before solar—but start with a roofing assessment first.
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Frequently Asked Questions
Yes, absolutely. Solar panels last 25-30 years, and removing and reinstalling them to replace a roof underneath costs thousands of dollars. If your roof is older than 10-15 years or has any existing issues, address those with a roofing contractor before installing solar. Acker Roofing can assess your roof's remaining lifespan and handle any needed repairs or replacement.
The available information doesn't indicate that Calpro Solar performs roofing work—their specialization is solar panel and battery system installation. If roof repairs are needed, you'll likely need to hire a separate roofing contractor. Ask Calpro directly whether they coordinate with roofers or if you need to arrange that separately before installation.
Yes, customer reviews specifically mention Acker Roofing coordinating with solar companies for panel removal and reinstallation during roof work. This suggests they're familiar with the process and can work alongside your solar installer, though you should confirm the specifics and any additional costs for this coordination.
Contact the roofing contractor first. Your roof needs to be in excellent condition before solar installation, and a roofer can tell you whether your current roof will last another 25+ years or needs replacement. Once roofing work is complete and you have a solid foundation, then move forward with solar installation. Trying to do both simultaneously often creates complications.
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 13, 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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