Williams Roofing vs Alpha Roofing
East Bay Roofing Comparison · Updated January 2026
| Williams Roofing | Alpha Roofing | |
|---|---|---|
| Rating | ★ 4.6 | ★ 5.0 |
| Years Licensed | 32 years | 1 years |
| License # | 687391 | 1129832 |
| Workers' Comp | ✓ Yes | ✓ Yes |
| Bond Amount | $25,000 | $25,000 |
| Location | Fremont, CA | Oakland, CA |
| Website | williamsroofing.net | alpharoofing.com |
Our Analysis
In terms of services and project types, Williams Roofing is described as serving residential properties and providing roof replacement and repair work. Customer feedback specifically references addressing leaks, completing roof replacements, and working on roof components such as skylights. Alpha Roofing’s feedback similarly references roofing projects and includes responsiveness for leak concerns and timely site visits, but the provided data does not specify skylight work.
On customer experience themes, both companies are described as professional with clear communication. Williams Roofing is often described as responsive during scheduling and execution, with comments about straightforward recommendations and not pushing unnecessary work. Alpha Roofing is described as organized, with punctual crews, efficient scheduling, regular updates, attention to finishing details, and cleanup at the end of the project. Service area details are clearer for Williams Roofing (Fremont and surrounding Alameda County); Alpha Roofing’s location is Oakland within Alameda County.
Why choose Williams Roofing?
- ✓ You want a Fremont-based contractor with a long licensing history (32 years) and an active license status.
- ✓ Your project includes residential roof repair or replacement, including leak issues; feedback also references work involving skylights.
- ✓ You value responsiveness during scheduling and ongoing communication during the job.
- ✓ You prefer a contractor described as straightforward in recommendations, with feedback noting they don’t push unnecessary work.
Why choose Alpha Roofing?
- ✓ You’re looking for an Oakland-based contractor in Alameda County with an active license and workers’ compensation coverage.
- ✓ You prioritize organized project coordination, including punctual crews and efficient scheduling.
- ✓ You want frequent updates and explanations of the work from estimate through completion.
- ✓ You care about finishing details and end-of-job cleanup, which are specifically mentioned in customer feedback.
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Frequently Asked Questions
Yes. Both Williams Roofing and Alpha Roofing are listed with active license status and workers’ compensation coverage in the provided data.
Yes. Both companies list a bond amount of $25,000.
Williams Roofing is based in Fremont, and Alpha Roofing is based in Oakland. Both are in Alameda County, so proximity may depend on your specific address and scheduling availability.
Yes. The provided information references leak-related concerns and roof repairs for both companies, and it explicitly mentions full roof replacements for Williams Roofing.
Other East Bay Roofing Comparisons
Data Sources: License information from California CSLB. Ratings and reviews from Google. Last verified January 16, 2026.
This comparison is based on publicly available information. We recommend getting multiple quotes and verifying all credentials directly before hiring.