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Sierra Roofing And Solar vs All On Electric And Solar
Alameda Solar Contractors Comparison · Updated March 2026
Sierra Roofing And Solar brings 6 more years of experience and extensive customer feedback for roofing projects, while All On Electric And Solar specializes in electrical and solar with limited public reviews.
| Sierra Roofing And Solar | All On Electric And Solar | |
|---|---|---|
| Rating | ★ 4.8 | ★ 5.0 |
| Years Licensed | 22 years | 16 years |
| License # | 835854 | 944973 |
| Workers' Comp | ✓ Yes | ✓ Yes |
| Bond Amount | $25,000 | $25,000 |
| Location | Dublin, CA | Livermore, CA |
| Website | www.sierraroofing.com | www.allonelectric.com |
Key Differences
What Customers Say
Sierra Roofing And Solar
Customers consistently praise Sierra's thorough inspections with detailed explanations, professional communication throughout projects, efficient crews, and clean jobsite practices across repair and replacement work.
Key Takeaway: Sierra has extensive documented customer feedback establishing service patterns and quality expectations, while All On Electric provides no public review history to assess their approach or reliability.
Customer Reviews
Sierra Roofing And Solar
Excellent workmanship. They had exactly the materials we wanted for our roof. We're very considerate and, all things considered, quiet. Did an excellent job of cleaning up after they had left. Great f...
Robert was prompt and professional. Explained clearly what he found to be the cause of the leak and how to fix it. He gave me recommendations on maintenance for my ceramic tile roof but I never felt p...
Robert did a great job getting here on time and checking out my roofing issues
All On Electric And Solar
Quality Work. Polite and friendly staff
Consider Sierra Roofing And Solar if...
- ✓ Your project is roofing-focused (leak repair, roof replacement, gutter work, or tile maintenance) and you want a contractor with documented roofing expertise spanning two decades.
- ✓ You value transparent communication and want feedback confirming a contractor explains findings clearly and keeps you informed throughout the project.
- ✓ You need confidence in emergency responsiveness, as customers specifically mention Sierra's ability to mobilize quickly during heavy rain and water intrusion events.
- ✓ You're planning a complex roof replacement (tile, standing seam metal) where 22 years of experience diagnosing hidden damage and handling complications provides meaningful risk reduction.
Consider All On Electric And Solar if...
- ✓ Your project includes electrical work or solar installation as the primary scope, making All On Electric's specialization directly relevant to your needs.
- ✓ You're comfortable conducting thorough reference checks yourself and verifying service quality through direct conversations with past clients rather than relying on public reviews.
- ✓ You prefer working with a Livermore-based contractor if your property is in the eastern Alameda County area and local presence matters for your timeline.
- ✓ You're willing to ask detailed questions about project management, communication practices, and how they handle scheduling to fill the information gap left by limited public feedback.
Questions to Ask Before Hiring
- → Ask All On Electric And Solar for at least three recent references for projects similar to yours in scope and budget, and follow up with specific questions about communication, scheduling, and problem-solving.
- → Ask how long their current crew has been with the company and what their process is for keeping homeowners informed during multi-day projects.
- → If your project involves roofing work, ask All On Electric And Solar directly about their roofing experience and capabilities, as their description emphasizes electrical and solar specialization.
- → Ask both companies about current scheduling timelines and how far out they're booking work, especially given Sierra's feedback about advance planning during busy periods.
The Bottom Line
If your project is roofing-related, Sierra Roofing And Solar is the clear choice based on 22 years of documented roofing expertise, extensive customer feedback confirming thorough diagnostics and professional execution, and a proven track record handling everything from emergency leaks to complex replacements. Plan to schedule in advance during busy seasons. If your project is primarily electrical or solar work, All On Electric And Solar's specialization is relevant, but you must invest time requesting and checking references to verify service quality, communication practices, and reliability that public reviews would normally reveal. Don't hire All On Electric for roofing work without confirming their specific capabilities in that area. For roofing projects, the data strongly favors Sierra.
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Frequently Asked Questions
For roofing projects, yes, it matters significantly. Sierra's 22 years translates to more exposure to unusual roof configurations, hidden damage scenarios, and installation challenges that arise during tear-offs. That experience becomes especially valuable on older homes or complex roof geometries. For electrical or solar work, All On Electric's 16 years is substantial, but you lack customer feedback to confirm how that experience translates to service quality.
Some contractors simply don't prioritize collecting online reviews, focusing instead on word-of-mouth and repeat business. Others may serve more commercial clients or work through subcontracting relationships that don't generate public feedback. The lack of reviews isn't necessarily a red flag, but it does mean you need to do extra legwork requesting references and verifying their track record directly.
Their license classification and description emphasize electrical and solar specialization. If your project requires roofing work beyond basic solar panel mounting, ask them directly about their roofing capabilities, crew experience, and recent roofing projects. Don't assume expertise outside their stated focus areas without verification.
This is common with busy, well-reviewed contractors and usually indicates consistent demand rather than disorganization. For non-emergency work, expect to schedule several weeks out. If you need immediate service, ask about their current availability and emergency response options, which customers have specifically praised for urgent leak situations.
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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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