Alpha Roofing vs Renergy Roofing
East Bay Roofing Comparison · Updated January 2026
| Alpha Roofing | Renergy Roofing | |
|---|---|---|
| Rating | ★ 5.0 | ★ 5.0 |
| Years Licensed | 1 years | 1 years |
| License # | 1129832 | 1127157 |
| Workers' Comp | ✓ Yes | ✓ Yes |
| Bond Amount | $25,000 | $25,000 |
| Location | Oakland, CA | Walnut Creek, CA |
| Website | alpharoofing.com | renergyroofing.com |
Our Analysis
In customer feedback, both are described as professional and organized, with clear communication from estimate through completion. Alpha Roofing’s feedback emphasizes explanations of scope, regular updates during the job, punctual crews, efficient scheduling, and attention to cleanup and finishing details. Reviews also mention responsiveness to leak concerns and timely site visits.
Renergy Roofing’s feedback similarly highlights punctual scheduling, efficient execution, attention to detail during installation, and clean job sites with respect for the property. A distinguishing theme in the provided summary is the mention of straightforward pricing and transparent explanations, plus guidance on materials and roofing components, including recommendations aligned with future solar panel plans.
Service-area examples are explicitly referenced for Alpha Roofing across parts of the Bay Area (including San Jose, Cupertino, and Palo Alto). For Renergy Roofing, the provided data does not list specific example cities beyond its Walnut Creek location.
Why choose Alpha Roofing?
- ✓ You want an Oakland-based contractor (Alameda County) and prefer a company described as providing clear scope explanations and regular work updates.
- ✓ You value feedback themes around cleanup and finishing details at the end of the project.
- ✓ Your project may involve leak assessment or temporary repairs, and you want responsiveness for leak concerns.
- ✓ You prefer a contractor with Bay Area project examples specifically mentioned in customer experiences (including San Jose, Cupertino, and Palo Alto).
Why choose Renergy Roofing?
- ✓ You want a Walnut Creek-based contractor (Contra Costa County) with similar licensing, workers’ comp, and bonding details to other local options.
- ✓ You prioritize straightforward pricing and transparent explanations as recurring themes in customer feedback.
- ✓ You want guidance on materials and roofing components, including planning considerations such as future solar panel installation.
- ✓ You care about punctual scheduling, efficient execution, and job-site cleanliness and respect for the property during installation.
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Frequently Asked Questions
Yes. Both Alpha Roofing and Renergy Roofing are listed as carrying workers’ compensation coverage and maintaining a $25,000 bond.
Alpha Roofing is based in Oakland, Alameda County, California. Renergy Roofing is based in Walnut Creek, Contra Costa County, California.
Both are described as handling roof replacement and repair-related work, including leak assessment and temporary repairs.
Renergy Roofing’s customer feedback includes mentions of guidance on materials and recommendations suited to needs such as future solar panel plans.
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.