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Alpha Roofing vs Integrity Roofing Systems
Alameda Roofing Contractors Comparison · Updated February 2026
Integrity Roofing Systems brings seven times the licensure history and broader project experience, while Alpha Roofing is a newer contractor with strong communication practices.
| Alpha Roofing | Integrity Roofing Systems | |
|---|---|---|
| Rating | ★ 5.0 | ★ 5.0 |
| Years Licensed | 1 years | 7 years |
| License # | 1129832 | 1046268 |
| Workers' Comp | ✓ Yes | ✓ Yes |
| Bond Amount | $25,000 | $25,000 |
| Location | Oakland, CA | Pleasanton, CA |
| Website | alpharoofing.com | www.integrityroofingpleasanton.com |
Key Differences
What Customers Say
Alpha Roofing
Alpha Roofing customers emphasize frequent communication, progress documentation including drone video, and organized execution from estimate through cleanup.
Integrity Roofing Systems
Integrity Roofing Systems customers highlight thorough inspections with detailed proposals, efficient handling of unexpected issues during tear-off, and no-pressure recommendations.
Key Takeaway: While both companies earn praise for communication, Integrity's reviews more frequently reference managing complications like rot or structural repairs discovered mid-project, reflecting broader diagnostic experience.
Customer Reviews
Alpha Roofing
Andy and Roman were both amazing to work with on our roof project in Cupertino. Andy and Roman were super helpful from the start. He explained everything clearly and made sure we felt confident with o...
I did my roof in the bay area and had a great experience with this roofing company! The owner, Andy, was extremely helpful throughout the entire process. He took the time to explain everything clearly...
We worked with Andy for our roofing project in San Jose and honestly, he made the whole process so much easier than I expected. From the first call, he was super helpful, patient with all my questions...
Integrity Roofing Systems
The owner, Jamin, did a wonder job on both our roof repairs & installing skylights! Jamin is as honest as it gets! I highly recommend!
They redid my roof. Were a great value for the quality of work that they did. Roof looks great now!
Integrity Roofing Systems was excellent from start to finish. They took a thoughtful, diagnostic approach to a tile roof leak, avoided unnecessary scope, and clearly explained what needed to be repair...
Consider Alpha Roofing if...
- ✓ Your project is straightforward, such as a standard reroof on a newer home without expected complications or hidden damage concerns.
- ✓ You particularly value frequent progress updates and documentation, as Alpha consistently provides photos and drone video throughout the job.
- ✓ You prefer working with a smaller, growing company where high owner involvement means direct attention to your project.
- ✓ You're comfortable with a newer contractor who carries proper workers comp and bonding but has a shorter track record managing unexpected field conditions.
Consider Integrity Roofing Systems if...
- ✓ Your roof is older and may have hidden rot, structural issues, or complications that won't be visible until tear-off begins.
- ✓ You're planning solar installation and need a pre-solar roof assessment from someone experienced in evaluating structural readiness.
- ✓ You want a contractor with seven years of field experience diagnosing problems and making on-the-spot decisions when crews uncover unexpected damage.
- ✓ Your project includes specialized work like tile repair, skylight replacement, or gutter system overhaul alongside roofing, where Integrity's broader project history is relevant.
Questions to Ask Before Hiring
- → Ask Alpha how they handle unexpected discoveries during tear-off, such as hidden rot or structural damage, and request examples from past projects where they managed complications.
- → Ask Integrity about current crew composition and how long their lead installers have been with the company, since experience matters at the crew level too.
- → Confirm with both contractors what their warranty covers for workmanship and materials, and whether warranty service differs between a newer and more established company.
- → Ask both for references from projects similar to yours in age, complexity, and scope, then follow up with those homeowners about how unexpected issues were communicated and resolved.
The Bottom Line
For most homeowners, Integrity Roofing Systems is the safer choice. Seven years of licensure means more roofs torn off, more hidden problems diagnosed, and more experience making judgment calls when your project doesn't go exactly as planned. That experience depth matters especially if your roof is over 15 years old or you're coordinating with solar installation. Alpha Roofing is a legitimate option if your project is straightforward, you value their emphasis on progress documentation, and you're comfortable with a newer contractor who has proper insurance and bonding. But if you're deciding this week and your roof has any complexity or age-related concerns, Integrity's track record provides more assurance when unexpected issues emerge during tear-off.
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Frequently Asked Questions
It matters most when things don't go as planned. A standard reroof on a newer home with no surprises may proceed identically with either contractor. But most roofs over 15 years old reveal something unexpected during tear-off—rot around a chimney, damaged decking, or outdated flashing. Integrity's seven years means they've diagnosed and priced these issues dozens of times. Alpha's one year means they're still building that reference library of complications.
The communication styles appear similar—both provide updates, detailed proposals, and responsiveness. Alpha specifically highlights documentation with photos and drone video as a signature practice. Integrity emphasizes thorough inspections with photos and group messaging for updates. The difference is less about communication quality and more about what they're communicating: Integrity has more experience explaining complex repair options when crews uncover problems.
Alpha carries workers comp and bonding, which protects you from the biggest risks (contractor injury liability and job abandonment). The risk is narrower: less experience means fewer past projects to draw on when diagnosing problems or estimating how long repairs will take. For straightforward projects, this matters less. For older roofs or complex layouts, experience diagnosing hidden issues becomes more valuable.
It suggests versatility when complications arise. If your replacement uncovers a gutter system that needs work, or a skylight with failed flashing, Integrity has documented experience handling those secondary issues in-house. Alpha's narrower project history doesn't mean they can't handle it, but you're relying more on their ability to adapt rather than repeat a familiar process.
Looking for the Best?
See our ranked list of top roofing contractors in Alameda.
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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 February 26, 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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