Renergy Roofing vs Star Waterproofing and Roofing
East Bay Roofing Comparison · Updated January 2026
| Renergy Roofing | Star Waterproofing and Roofing | |
|---|---|---|
| Rating | ★ 5.0 | ★ 4.3 |
| Years Licensed | 1 years | 8 years |
| License # | 1127157 | 1036279 |
| Workers' Comp | ✓ Yes | ✓ Yes |
| Bond Amount | $25,000 | $25,000 |
| Location | Walnut Creek, CA | Walnut Creek, CA |
| Website | renergyroofing.com | www.starwaterproofingco.com |
Our Analysis
A key difference is time licensed: Renergy Roofing has been licensed for 1 year, while Star Waterproofing and Roofing has been licensed for 8 years. Based on customer feedback summaries, Renergy Roofing is associated with roof replacements, re-roof projects, inspections, and leak evaluations, along with project coordination elements such as permits and material selection. Comments also mention recommendations tailored to planned solar installations. The service footprint referenced in feedback includes nearby communities such as Orinda and also mentions projects outside the immediate area, including San Jose, suggesting customers may want to confirm availability by location.
Star Waterproofing and Roofing is described as knowledgeable in diagnosing leaks and explaining repairs, with detailed estimates and responsiveness. Reviews reference work on decks, balconies, and flat or low-slope roofs, including projects for multi-unit and commercial buildings, and mention protecting surrounding areas during construction and some follow-up support. The feedback summary also notes that not all experiences are positive, with a few reports of dissatisfaction related to communication or service.
Why choose Renergy Roofing?
- ✓ You want a contractor described as organized and communicative from estimate through completion, with straightforward pricing explanations.
- ✓ Your project involves a roof replacement, re-roof, inspection, or leak evaluation, and you value attention to jobsite cleanliness and property respect.
- ✓ You want guidance on materials and roofing components, including recommendations that consider future solar installation plans.
- ✓ Your property is in Contra Costa County or nearby areas mentioned in customer comments (such as Orinda); confirm availability if your project is farther out (such as San Jose).
Why choose Star Waterproofing and Roofing?
- ✓ You prefer a contractor with a longer licensing history (8 years) while still having active licensure, workers’ compensation coverage, and a $25,000 bond.
- ✓ Your needs include leak diagnosis and repair explanations, and you want detailed estimates and clear communication around scheduling.
- ✓ Your project involves waterproofing-adjacent areas like decks or balconies, or flat/low-slope roofing, including multi-unit or commercial buildings.
- ✓ You want to factor in that customer feedback includes both strong outcomes and some reported concerns about communication or service experiences.
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Frequently Asked Questions
Yes. Both are listed as actively licensed, carry workers’ compensation coverage, and maintain a $25,000 bond.
Star Waterproofing and Roofing is listed as licensed for 8 years, while Renergy Roofing is listed as licensed for 1 year.
Star Waterproofing and Roofing. Customer feedback mentions decks, balconies, and flat or low-slope roofs, including multi-unit and commercial projects.
Renergy Roofing. Customer feedback references support with permits and material selection, including recommendations tailored to planned solar installations.
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.