TSP Roofing and Solar vs Alpha Roofing
East Bay Roofing Comparison · Updated January 2026
| TSP Roofing and Solar | Alpha Roofing | |
|---|---|---|
| Rating | ★ 5.0 | ★ 5.0 |
| Years Licensed | 3 years | 1 years |
| License # | 1096233 | 1129832 |
| Workers' Comp | ✓ Yes | ✓ Yes |
| Bond Amount | $25,000 | $25,000 |
| Location | Hercules, CA | Oakland, CA |
| Website | www.tsproofingandsolar.com | alpharoofing.com |
Our Analysis
Alpha Roofing is based in Oakland (Alameda County) and has been licensed for 1 year, compared with 3 years for TSP Roofing and Solar. In customer feedback, Alpha Roofing is discussed mainly in relation to roofing projects, with emphasis on clear communication from estimate to completion, punctual crews, efficient scheduling, and cleanup. Some experiences mention responsiveness to leak concerns and timely site visits.
On compliance indicators, both companies are listed as actively licensed, carry workers’ compensation coverage, and maintain a $25,000 bond. Based on the provided data, homeowners choosing between them may weigh location and service area fit, the need for solar/electrical coordination versus roofing-only needs, and relative time licensed.
Why choose TSP Roofing and Solar?
- ✓ You want one contractor associated with both roofing and solar work, including batteries, inverter/system repairs, and related electrical upgrades.
- ✓ Your project may involve coordination across trades (roofing plus solar) and help navigating permitting and scheduling.
- ✓ You are located in or near Contra Costa County and prefer a Hercules-based contractor.
- ✓ You want a company described as handling troubleshooting and post-install issues such as leaks or solar systems going offline.
Why choose Alpha Roofing?
- ✓ Your needs are primarily roofing-focused (repairs or replacement) and you want a process centered on communication and job coordination.
- ✓ You are located in or near Alameda County and prefer an Oakland-based contractor.
- ✓ You value punctual crews, efficient scheduling, and end-of-job cleanup as recurring themes in customer feedback.
- ✓ You want a contractor described as responsive to leak concerns and able to arrange timely site visits when issues arise.
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Frequently Asked Questions
Yes. Both are listed as having an active license, carrying workers’ compensation coverage, and maintaining a $25,000 bond.
TSP Roofing and Solar is associated with solar panel and battery installations, inverter and system repairs, and related electrical work such as main panel upgrades.
TSP Roofing and Solar is based in Hercules (Contra Costa County). Alpha Roofing is based in Oakland (Alameda County). Location can influence convenience for site visits and alignment with the areas each company serves.
TSP Roofing and Solar is listed as licensed for 3 years, while Alpha Roofing is listed as licensed for 1 year.
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.