Tri Valley Roofing vs Alpha Roofing
East Bay Roofing Comparison · Updated January 2026
| Tri Valley Roofing | Alpha Roofing | |
|---|---|---|
| Rating | ★ 5.0 | ★ 5.0 |
| Years Licensed | 3 years | 1 years |
| License # | 1100411 | 1129832 |
| Workers' Comp | ✓ Yes | ✓ Yes |
| Bond Amount | $25,000 | $25,000 |
| Location | Castro Valley, CA | Oakland, CA |
| Website | www.trivalleyroofing.com | alpharoofing.com |
Our Analysis
In terms of services, Tri Valley Roofing is specifically described as handling roof replacement, roof repairs and maintenance, gutter installation, skylight work, and related improvements such as solar tubes and dry rot repairs. Customer references include residential work ranging from targeted repairs to full roof and gutter replacements, including accessory structures. Tri Valley Roofing is also noted for using photos to document conditions and progress, which some customers found helpful for insurance-related needs.
Alpha Roofing’s customer feedback focuses more on the process and execution than on a detailed service list. Customers commonly mention clear communication from the initial call and estimate through completion, punctual crews, efficient scheduling, and end-of-job cleanup. Some experiences reference responsiveness to leak concerns and timely site visits. Both companies are described as emphasizing communication, coordination, and workmanship-related details.
Why choose Tri Valley Roofing?
- ✓ You want a contractor based in Castro Valley with service described across the surrounding East Bay area.
- ✓ You’re looking for a provider explicitly associated with roof replacement, repairs/maintenance, gutters, skylights, solar tubes, and dry rot repairs.
- ✓ You value photo documentation to support project communication, including for insurance-related sharing.
- ✓ You prefer a company with 3 years of licensing history, alongside active status, workers’ comp coverage, and a $25,000 bond.
Why choose Alpha Roofing?
- ✓ You want a contractor located in Oakland within Alameda County.
- ✓ You prioritize an organized, step-by-step process with clear communication from estimate through completion.
- ✓ You want emphasis on punctual crews, efficient scheduling, and cleanup at the end of the job.
- ✓ You may value responsiveness for leak concerns and timely site visits, with an active license, workers’ comp coverage, and a $25,000 bond.
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Frequently Asked Questions
Yes. Both Tri Valley Roofing and Alpha Roofing have active license status and list workers’ compensation coverage.
Yes. Each company lists a $25,000 bond.
Tri Valley Roofing has been licensed for 3 years, while Alpha Roofing has been licensed for 1 year.
Tri Valley Roofing is described as using photos to document conditions and progress, which some customers found useful for sharing with insurance.
Other East Bay Roofing Comparisons
Data Sources: License information from California CSLB. Ratings and reviews from Google. Last verified January 13, 2026.
This comparison is based on publicly available information. We recommend getting multiple quotes and verifying all credentials directly before hiring.