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Sierra Roofing And Solar vs Astro Roofing Inc
Alameda Roofing Contractors Comparison · Updated March 2026
Sierra Roofing brings twice the licensed experience (22 vs 11 years), making it better equipped for complex diagnostics and older roofs, while Astro offers high owner involvement and faster scheduling.
| Sierra Roofing And Solar | Astro Roofing Inc | |
|---|---|---|
| Rating | ★ 4.8 | ★ 5.0 |
| Years Licensed | 22 years | 11 years |
| License # | 835854 | 1001992 |
| Workers' Comp | ✓ Yes | ✓ Yes |
| Bond Amount | $25,000 | $25,000 |
| Location | Dublin, CA | Oakland, CA |
| Website | www.sierraroofing.com | astroroofinginc.net |
Key Differences
What Customers Say
Sierra Roofing And Solar
Customers consistently praise Sierra for thorough inspections with detailed explanations of findings, professional communication through project completion, and clean jobsite practices, though some note scheduling requires advance planning.
Astro Roofing Inc
Astro receives repeated mentions for responsive scheduling, quick site visits, and high owner involvement, with customers frequently returning for additional work and referring the company to others.
Key Takeaway: Sierra is valued for diagnostic thoroughness and handling complex scopes including specialty roofing and solar, while Astro stands out for scheduling agility and the personal touch of direct owner engagement throughout smaller and mid-sized projects.
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
Astro Roofing Inc
I call these guys in a pinch and they always come through. I have a 105 year old house that was poorly maintained before I took it on. I need them!
10/10 would hire again! Dario and Solomon made time to come check out my roof and gutters immediately after I called. My roof had weather damage that needed replacing and my gutters needed cleaning....
Astro Roofing was incredibly helpful! We had a leak and they came out very quickly and identified what we were suspected -- our tile roof had become cracked and was letting in water. They were able to...
Consider Sierra Roofing And Solar if...
- ✓ Your roof is older (20+ years) or has a history of intermittent leaks that other contractors haven't fully resolved, where Sierra's 22 years of diagnostic experience becomes valuable.
- ✓ Your project involves specialty roofing like standing seam metal, tile roof complexities, or you're combining roofing work with solar installation.
- ✓ You're planning a major replacement during the dry season and can schedule several weeks out, accepting that Sierra's experience may require waiting during peak periods.
- ✓ You want a contractor who has seen and solved the unusual problems that come up in Bay Area homes built in multiple eras.
Consider Astro Roofing Inc if...
- ✓ You need a leak inspection or repair scheduled quickly, as Astro's responsiveness and faster turnaround is a consistent pattern in feedback.
- ✓ You value direct owner involvement throughout your project, from estimate to completion, rather than working primarily with project managers.
- ✓ Your project is straightforward residential work (standard roof replacement, tile repair, leak fixes) where 11 years of experience is fully adequate.
- ✓ You're a homeowner who prefers a family-business relationship and anticipates possibly using the same contractor for future maintenance.
Questions to Ask Before Hiring
- → For Sierra: What is your current lead time for non-emergency projects, and can you commit to a firm start date once scheduled?
- → For Astro: Can you describe similar projects you've completed on homes built in the same era as mine, especially if your roof is older or has unusual features?
- → For both: Will the owner or a dedicated project manager be my main contact, and who will be on-site supervising the crew daily?
The Bottom Line
For most standard residential roofing projects, both contractors will serve you well—they're properly licensed, insured, communicative, and professional. Choose Sierra Roofing if your roof is older, has a complicated history, involves specialty materials like standing seam metal, or you're planning solar integration; their 22 years of experience provides measurably deeper diagnostic capability for complex situations. Choose Astro Roofing if you need faster scheduling, prefer high owner involvement, and your project is straightforward work where 11 years of established experience is fully sufficient. If you're unsure about hidden complexity in your roof, Sierra's veteran-tier experience is the safer bet.
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Frequently Asked Questions
For a straightforward tearoff and reshingle on a typical ranch home, probably not—both contractors have handled hundreds of these. The gap becomes meaningful when your roof has complications: multiple valleys, unusual flashing details, signs of past amateur repairs, or if it's old enough that hidden deck damage is likely. Sierra's extra decade means more repetitions diagnosing what's behind the visible problem.
Both respond to emergency calls, but the feedback patterns differ slightly. Sierra is noted for prompt emergency mitigation during heavy rain, while Astro is described as very responsive for quick inspections and leak evaluations. If you're calling mid-storm, either can help; if you want the fastest initial visit to assess the problem, Astro's scheduling agility may get someone there sooner.
Sierra has built specific expertise integrating roofing with solar installations, including planning for conduit runs, panel mounting, and coordinating with solar contractors. Astro focuses on core roofing and hasn't highlighted solar work in their portfolio. If you're planning solar within the next few years, having a roofer who understands that integration from the start can prevent having to modify a brand-new roof later.
Astro's feedback specifically highlights high owner involvement as a pattern—customers interact directly with ownership throughout the process. Sierra's structure isn't as clear from the data, and references to "crews" and "communication" suggest a more layered operation typical of veteran contractors. If you want the owner answering your calls and walking your roof personally, ask both companies directly how involved ownership is day-to-day.
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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 10, 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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