Bay Roofing Company vs Star Waterproofing and Roofing
East Bay Roofing Comparison · Updated January 2026
| Bay Roofing Company | Star Waterproofing and Roofing | |
|---|---|---|
| Rating | ★ 4.3 | ★ 4.3 |
| Years Licensed | 37 years | 8 years |
| License # | 560803 | 1036279 |
| Workers' Comp | ✓ Yes | ✓ Yes |
| Bond Amount | $25,000 | $25,000 |
| Location | Alameda, CA | Walnut Creek, CA |
| Website | www.bayroofingalameda.com | www.starwaterproofingco.com |
Our Analysis
Star Waterproofing and Roofing is based in Walnut Creek and has been licensed for 8 years with an active status. Review summaries frequently highlight leak diagnosis, detailed estimates, and clear communication, along with responsiveness during scheduling and project execution. The types of projects mentioned include decks, balconies, and flat or low-slope roofs, including multi-unit and commercial buildings, suggesting experience in waterproofing-adjacent scopes. Customers also reference professionalism, timeliness, jobsite protection, and occasional follow-up support. As with Bay Roofing Company, some customers report dissatisfaction related to communication or service experiences.
Why choose Bay Roofing Company?
- ✓ You want a contractor based in Alameda serving Alameda County and nearby communities.
- ✓ A longer licensing history (37 years) is important to you when comparing local providers.
- ✓ You prefer a process described as straightforward, organized from estimate through installation, and focused on meeting agreed schedules.
- ✓ You plan to confirm license, workers’ compensation coverage, and the $25,000 bond during your selection and quoting process.
Why choose Star Waterproofing and Roofing?
- ✓ You’re located closer to Walnut Creek or prefer a Contra Costa County–based contractor.
- ✓ Your project involves leak diagnosis or waterproofing-related areas such as decks, balconies, or flat/low-slope roofing.
- ✓ You value detailed estimates and communication during scheduling and execution, and may want follow-up support after completion.
- ✓ You intend to verify active license status, workers’ compensation coverage, and the $25,000 bond before proceeding.
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Frequently Asked Questions
Yes. Both Bay Roofing Company and Star Waterproofing and Roofing list an active license status and workers’ compensation coverage.
Bay Roofing Company is based in Alameda (Alameda County) and serves Alameda County and nearby communities. Star Waterproofing and Roofing is based in Walnut Creek (Contra Costa County); the provided information does not specify its service area beyond its location.
Yes. Each company lists a $25,000 bond.
Customer summaries mention work involving leak diagnosis and repairs, as well as decks, balconies, and flat or low-slope roofs, including projects for multi-unit and commercial buildings.
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.