Compare Local Pros
Century Roof And Solar vs Grid Alternatives
Alameda Electrical Contractors Comparison · Updated March 2026
Century Roof and Solar is a full-service roofing and solar contractor available to all homeowners, while Grid Alternatives provides no-cost solar only to qualifying low-income households through a nonprofit model.
| Century Roof And Solar | Grid Alternatives | |
|---|---|---|
| Rating | ★ 4.8 | ★ 4.8 |
| Years Licensed | 30 years | 20 years |
| License # | 721502 | 867533 |
| Workers' Comp | ✓ Yes | ✓ Yes |
| Bond Amount | $25,000 | $25,000 |
| Location | Hayward, CA | Oakland, CA |
| Website | www.centuryroofandsolar.com | www.gridalternatives.org |
Key Differences
What Customers Say
Century Roof And Solar
Customers consistently highlight thorough consultations, detailed option reviews, strong workmanship, and clean jobsite practices with responsive coordination across complex multi-trade projects.
Grid Alternatives
Customers appreciate fast installations and significant utility savings but frequently note difficulty reaching the office for post-installation questions or support.
Key Takeaway: Century Roof and Solar is praised for communication and accessibility throughout the project lifecycle, while Grid Alternatives customers struggle to get responses after installation is complete.
Customer Reviews
Century Roof And Solar
It's good to know that there are still honest and hard working people that truly want to help their customers. The process of replacing my tile roof, gutters and insulation with Century Roof and Solar...
I contracted Century Roof and Solar to repair my roof. Tony (owner) visited my home for a consultation and was very thorough in explaining my options. It was a clear he was a man who knew his roofs. H...
Co-worker suggested Century Roof and Solar, went with the factory install. So I could transfer material and labor, to the new owner when I sell. Tony (owner) Pedro, Mark, Jose and to all the other wor...
Grid Alternatives
Great install but very difficult to get in touch with the office for follow up. They never answer their phones, respond to emails or voice messages. I had to do a surprise visit .
Excellent customer support
GRID Alternatives was so great to work with. They qualified us for a No Cost solar system on our home, which included needing to have our main electric panel upgraded from 100Amp to 125 Amp. They comp...
Consider Century Roof And Solar if...
- ✓ You need roofing work in addition to solar, whether that's a full replacement, tile repair, gutter installation, or addressing dry rot and structural issues before solar can be installed
- ✓ Your project involves coordination across multiple systems like removing and reinstalling existing solar during a roof replacement, integrating battery storage, or combining electrical upgrades with solar and roofing
- ✓ You want detailed consultation on options, high owner involvement throughout the project, and craftsmanship backed by 30 years of licensed experience
- ✓ You're willing to pay market rates for comprehensive service and expect responsive communication before, during, and after installation
Consider Grid Alternatives if...
- ✓ Your household meets the income qualification requirements for Grid Alternatives' no-cost solar program and you cannot afford to pay for solar installation out of pocket
- ✓ You have a straightforward solar installation need without complex roofing repairs, structural issues, or extensive customization requirements
- ✓ You're comfortable with a volunteer-supported workforce development model and value the educational mission alongside your installation
- ✓ You can be patient with longer wait times between approval and activation and are prepared to be persistent if you need post-installation support or have follow-up questions
Questions to Ask Before Hiring
- → For Grid Alternatives: What are the specific income thresholds and documentation requirements to qualify, and what is the current timeline from application to system activation?
- → For Grid Alternatives: What is the process for getting technical support or service after installation, and are there dedicated contacts for warranty issues?
- → For Century Roof and Solar: Can you assess whether my roof structure needs repairs or upgrades before solar installation, and how do you coordinate that work?
- → For Century Roof and Solar: What warranty coverage do you provide on both the roofing and solar components, and who handles service calls if issues arise?
The Bottom Line
Your decision starts with eligibility: if your household income qualifies you for Grid Alternatives' no-cost solar program and you have a straightforward installation need without roofing complications, the financial savings are substantial and the solar systems deliver measurable utility bill reductions. Be prepared for potential communication delays and persistence in getting post-installation support. If you don't qualify, need roofing work, want integrated project coordination, or value high-touch service with accessible communication, Century Roof and Solar is the clear choice with 30 years of experience handling complex residential projects. These companies serve different markets by design, not by accident.
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Frequently Asked Questions
No. Grid Alternatives serves only income-qualified households through their no-cost program and does not offer paid solar installations to homeowners who don't meet those requirements. If you don't qualify for Grid Alternatives based on income, Century Roof and Solar is your option for solar work. If you do qualify for Grid Alternatives, you're choosing between free solar with limited support versus paying market rates for more comprehensive service.
Grid Alternatives focuses exclusively on solar panel and electrical panel installations. If your roof requires repairs, replacement, or structural upgrades before solar can be safely installed, you would need to arrange that separately with a roofing contractor. Century Roof and Solar handles both roofing and solar as integrated projects, which is valuable when roof condition is uncertain.
Century Roof and Solar customers describe high owner involvement and structured communication throughout projects, suggesting accessible ongoing support. Grid Alternatives customers frequently report difficulty reaching the office by phone or email after installation is complete, which is a meaningful concern if you anticipate needing technical assistance or have warranty questions. Ask Grid Alternatives directly about their post-installation support process and response times.
The primary reasons would be if you need roofing work done simultaneously, want extensive customization or battery storage integration, require faster timelines with predictable scheduling, or place high value on responsive communication and detailed consultation. For straightforward solar-only installations where cost is the dominant concern and you meet income requirements, Grid Alternatives' no-cost model delivers significant financial value despite the communication tradeoffs.
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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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