Compare Local Pros
Bay Valley Roofing & Solar vs Paragon Roofing
Contra Costa General Contractors Comparison · Updated March 2026
Bay Valley brings 13 years of licensed experience versus Paragon's 3 years, a meaningful difference when handling complex roofing situations.
| Bay Valley Roofing & Solar | Paragon Roofing | |
|---|---|---|
| Rating | ★ 4.8 | ★ 4.9 |
| Years Licensed | 13 years | 3 years |
| License # | 982745 | 1100626 |
| Workers' Comp | ✓ Yes | ✓ Yes |
| Bond Amount | $25,000 | $25,000 |
| Location | Concord, CA | Concord, CA |
| Website | bayvalleyroofing.com | www.paragonroofco.com |
Key Differences
What Customers Say
Bay Valley Roofing & Solar
Bay Valley customers emphasize thorough diagnostic work with photo documentation, responsive communication throughout complex projects, and effective follow-up when troubleshooting issues that emerge after installation.
Paragon Roofing
Paragon customers consistently highlight adherence to timelines, on-schedule completion, and smooth project coordination from consultation through cleanup on standard roof replacements.
Key Takeaway: Bay Valley's reviews reflect comfort with diagnostic complexity and problem-solving across varied situations, while Paragon's feedback centers on executing planned scopes efficiently without deviation or delay.
Customer Reviews
Bay Valley Roofing & Solar
Putting on a new roof is a daunting project, but Bay Valley made everything a breeze for us! The process started with a thorough inspection, and then a very comprehensive video chat with Nathan, who e...
We're so glad we chose Bay Valley Roofing and Solar company to replace our roof. Working with Ryan was top notch customer service. Something we don't see as much anymore. He's professional, detailed, ...
Bay Valley Roofing did a great job in replacing our roof. Although we were out of the area, they did an outstanding job of documenting their work and communicating with us in planning and executing t...
Paragon Roofing
Had them replace my whole roof and gutter system and it was amazing. Fair pricing and followed through everything that was agreed. Thank you Paragon!
Paragon Roofing completed a complicated roof installation in San Francisco for me where 5 layers of old roof needed to be removed before installation of the new roof. It took about 5 business days. ...
Very professional. Set a date and time. They arrived on time and the boss gave me the time that they would be done. The job went well and they were done the same day and on time. I would recommend thi...
Consider Bay Valley Roofing & Solar if...
- ✓ Your roof is older than 20 years or you suspect hidden damage like dry rot or decking issues that won't be visible until the old roof comes off
- ✓ You need solar panel removal and reinstallation coordinated with your roof replacement, or you're considering solar shingle integration
- ✓ You've had recurring leaks that previous contractors couldn't fully resolve and need someone experienced in diagnosing water intrusion patterns
- ✓ You're managing the project remotely and need a contractor comfortable with video consultations and detailed photo documentation throughout the process
Consider Paragon Roofing if...
- ✓ Your project is a straightforward roof replacement on a newer home without suspected complications, and you prioritize efficient, on-schedule execution
- ✓ You value clear timelines and want a contractor with consistent feedback about finishing within the promised schedule
- ✓ You're price-conscious and want competitive bidding, as Paragon customers note fair pricing while Bay Valley may not be the lowest bid
- ✓ Your scope includes standard add-ons like gutter replacement or vent work that don't require extensive troubleshooting experience
Questions to Ask Before Hiring
- → Ask Paragon for references from projects on homes built before 2000, and specifically how they handled any unexpected dry rot or structural issues discovered during tear-off
- → Ask Bay Valley whether their current pricing structure positions them in the mid-range or premium tier for your specific project scope
- → If your roof has had previous repairs or patching, ask both contractors what their inspection process includes and whether they provide written photo documentation before proposing a solution
- → Ask both companies how long their current installation crews have worked together and what their typical project timeline is for a roof similar to yours
The Bottom Line
If your roof is older, has a history of leaks, or involves solar equipment, Bay Valley's 13-year track record and demonstrated diagnostic experience justify getting their bid first despite potentially higher pricing. Their customer feedback consistently describes thorough problem-solving and follow-through when complications arise. Paragon makes sense for straightforward replacements on newer homes where you want efficient, on-schedule work at a competitive price and don't anticipate hidden structural issues. For most homeowners with houses built before 2000 or any uncertainty about what's underneath the current roof, Bay Valley's additional decade of experience provides meaningful risk reduction worth the likely cost difference.
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Frequently Asked Questions
It depends on your home's age and condition. For a newer home with a straightforward tear-off and reshingle, Paragon's 3 years is sufficient and may come at a better price point. But if your home was built before 2000 or you've had leak issues, Bay Valley's 13 years means they've seen hundreds more scenarios where hidden damage surfaces mid-project and requires on-the-spot problem-solving. That experience translates to better diagnosis upfront and fewer surprise change orders.
The customer data doesn't show Paragon handling solar coordination, while Bay Valley reviews specifically mention solar panel removal, reinstallation, and solar shingle projects. If your roof replacement involves solar equipment, Bay Valley has demonstrated experience in that area. If you're simply reroofing without solar components, this distinction doesn't affect your decision.
Paragon customers mention competitive and fair pricing, while Bay Valley reviews note they may not be the lowest bid. If you're working with limited budget flexibility and your project is straightforward, Paragon is worth getting a quote from first. Bay Valley's pricing likely reflects their additional diagnostic work and experience handling complications, which provides value for complex projects but may be more than you need for a simple replacement.
This scenario favors Bay Valley's longer track record. Reviews describe them troubleshooting issues that emerged after initial inspection and following through on unexpected repairs. Paragon's 3 years means less pattern recognition when surprises appear, though their professionalism suggests they'd handle manageable complications. For older homes where unknowns are more likely, Bay Valley's experience provides more certainty that the crew has encountered your situation before.
Looking for the Best?
See our ranked list of top general contractors in Contra Costa.
Other Contra Costa General Contractors Comparisons
Bay Valley Roofing & Solar
★ 4.8
Hassler Heating And Air Conditioning
★ 4.9
Bay Valley Roofing & Solar
★ 4.8
Apollo Roofing Company
★ 5.0
Bay Valley Roofing & Solar
★ 4.8
Got Watts?
★ 4.9
Bay Valley Roofing & Solar
★ 4.8
High Definition Solar
★ 4.1
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 11, 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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