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Cortlandt Roofing vs Sterling Roofing Co
Sonoma Roofing Contractors Comparison · Updated April 2026
Both are veteran contractors with identical credentials, but Cortlandt has substantial customer feedback while Sterling's review history is minimal.
| Cortlandt Roofing | Sterling Roofing Co | |
|---|---|---|
| Rating | ★ 4.1 | ★ 4.0 |
| Years Licensed | 17 years | 21 years ✓ |
| Workers Comp | Yes | Yes |
| Bond Amount | $25,000 | $25,000 |
| Experience Tier | Veteran | Veteran |
| Location | Santa Rosa, Sonoma County | Glen Ellen, Sonoma County |
| Website | www.cortlandtroofing.com | sterlingroofingco.com |
Key Differences
What Customers Say
Cortlandt Roofing
Customers consistently praise Cortlandt's professional crew behavior, clean job sites, and attention to customer preferences, with scheduling lead times being the main trade-off for their quality work.
Key Takeaway: Cortlandt provides substantial verifiable customer feedback about work practices and communication, while Sterling's limited review history requires homeowners to conduct direct reference checks to assess similar qualities.
Customer Reviews
Cortlandt Roofing
Amazing work!!! Got to give it up for the crew doing a great job
Todd and his crew were awesome. Am very very happy.
Great company, only uses to tier products.
Sterling Roofing Co
Found some leaking into the house . Callled another place , had to leave a message .Everybody was busy as a lot of rain was happening . Decided I couldn't sit and wait . Tried Sterling .He answered . ...
Consider Cortlandt Roofing if...
- ✓ You want verifiable customer feedback about crew professionalism, job site cleanliness, and attention to customer requests during the project
- ✓ You value a contractor with demonstrated local business relationships and community reputation that can be independently confirmed
- ✓ Your project timeline is flexible enough to accommodate potential scheduling lead times for a busy, in-demand contractor
- ✓ You prefer transparency about what to expect during the work process based on consistent customer experience patterns
Consider Sterling Roofing Co if...
- ✓ You're located in or near Glen Ellen and want a contractor based in your immediate area
- ✓ You have a leak repair project and want a contractor who specifically lists this work type
- ✓ You're comfortable conducting your own due diligence through direct references rather than relying on public reviews
- ✓ The four additional years of licensure (21 vs 17) provides added confidence despite limited publicly available feedback
Questions to Ask Before Hiring
- → Ask Sterling Roofing Co for at least three recent customer references you can contact directly, specifically for projects similar to yours in scope and complexity
- → Ask Sterling about their typical project communication process and how they handle warranty issues or callbacks
- → Ask Cortlandt about current scheduling availability and realistic timelines for starting your project given their busy schedule
- → Ask both contractors how they document warranty terms and what their process is for addressing post-project concerns
The Bottom Line
Both contractors have the credentials and experience to handle your roofing project competently. Cortlandt Roofing offers more transparency through consistent customer feedback showing professional crews, clean work sites, and quality results, though you may face scheduling lead times. Sterling Roofing Co has slightly longer tenure but requires more direct verification through references since public reviews are limited. For most homeowners, Cortlandt's verifiable track record of customer satisfaction and documented work practices makes the decision clearer, especially if your timeline allows for their schedule. Choose Sterling if you're in Glen Ellen, need leak repair specifically, and are willing to conduct thorough reference checks yourself.
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Frequently Asked Questions
Both companies qualify as veteran contractors with the experience to handle complex roofing issues and regional weather challenges. The practical difference is that Cortlandt's customer reviews let you verify how that experience translates to actual project execution, while Sterling's longer tenure lacks the same level of public validation. Ask Sterling for detailed references to bridge this information gap.
A busy schedule often signals strong demand and customer satisfaction, which aligns with Cortlandt's positive feedback. However, if your project has strict timeline requirements, clarify availability and start dates in writing before committing. Several customers felt the wait was worthwhile, but your situation may require immediate service.
Some established contractors rely on word-of-mouth and repeat business rather than online reviews, which doesn't necessarily indicate quality issues. However, it does mean you'll need to do more direct verification through references and contractor interviews. Ask Sterling how they typically acquire customers and request contact information for recent projects you can verify independently.
A single mention among otherwise positive reviews suggests an isolated experience rather than a pattern, but it's worth addressing directly. Ask Cortlandt specifically about their warranty process, response timelines, and how they handle post-project concerns. Get warranty terms in writing and clarify the contact process before work begins.
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See our ranked list of top roofing contractors in Sonoma.
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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 April 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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