Tri Valley Roofing vs Star Waterproofing and Roofing
East Bay Roofing Comparison · Updated January 2026
| Tri Valley Roofing | Star Waterproofing and Roofing | |
|---|---|---|
| Rating | ★ 5.0 | ★ 4.3 |
| Years Licensed | 3 years | 8 years |
| License # | 1100411 | 1036279 |
| Workers' Comp | ✓ Yes | ✓ Yes |
| Bond Amount | $25,000 | $25,000 |
| Location | Castro Valley, CA | Walnut Creek, CA |
| Website | www.trivalleyroofing.com | www.starwaterproofingco.com |
Our Analysis
Based on customer-described services, Tri Valley Roofing is associated with residential roofing work ranging from targeted repairs to full roof replacements, plus related items such as gutter installation, skylight work, solar tubes, and dry rot repairs. Customers also describe the company as using photos to document conditions and progress, including for insurance-related needs.
Star Waterproofing and Roofing is described as handling leak diagnosis and repair recommendations, with mentions of decks, balconies, and flat or low-slope roofing. Customer references include multi-unit and commercial projects in addition to other work. Communication and detailed estimates are frequently mentioned, along with protecting surrounding areas during construction and occasional follow-up support. The feedback described for Star includes some negative experiences reported by a few customers, particularly around communication or service.
Why choose Tri Valley Roofing?
- ✓ You are in or near Castro Valley or the surrounding East Bay and want a contractor described as serving that area.
- ✓ Your project is residential and may include roof replacement or repair plus add-ons like gutters, skylights, solar tubes, or dry rot repairs.
- ✓ You value photo documentation of roof conditions and progress, including for sharing with insurance.
- ✓ You want a contractor listed with an active license, workers’ compensation coverage, and a $25,000 bond.
Why choose Star Waterproofing and Roofing?
- ✓ You are in or near Walnut Creek or Contra Costa County and want a contractor based there.
- ✓ Your needs include leak diagnosis or work involving decks, balconies, or flat/low-slope roofing systems.
- ✓ Your property is multi-unit or commercial, since customers reference those project types.
- ✓ You want a contractor listed with an active license, workers’ compensation coverage, and a $25,000 bond, and you prefer detailed estimates and clear repair explanations.
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Frequently Asked Questions
Yes. Both Tri Valley Roofing and Star Waterproofing and Roofing are listed as carrying workers’ compensation coverage and holding a $25,000 bond.
Star Waterproofing and Roofing is listed as licensed for 8 years, while Tri Valley Roofing is listed as licensed for 3 years.
Tri Valley Roofing is described by customers as performing roof replacements and repairs along with gutter installation, skylight work, solar tubes, and dry rot repairs.
Star Waterproofing and Roofing is described by customers as completing work on decks and balconies and on flat or low-slope roofs, including 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.