Williams Roofing vs TSP Roofing and Solar
East Bay Roofing Comparison · Updated January 2026
| Williams Roofing | TSP Roofing and Solar | |
|---|---|---|
| Rating | ★ 4.6 | ★ 5.0 |
| Years Licensed | 32 years | 3 years |
| License # | 687391 | 1096233 |
| Workers' Comp | ✓ Yes | ✓ Yes |
| Bond Amount | $25,000 | $25,000 |
| Location | Fremont, CA | Hercules, CA |
| Website | williamsroofing.net | www.tsproofingandsolar.com |
Our Analysis
TSP Roofing and Solar is based in Hercules in Contra Costa County, with 3 years of licensing and an active license status. It also carries workers’ compensation coverage and maintains a $25,000 bond. Customer feedback references both roofing and solar projects, including troubleshooting and repairs such as roof leaks, solar systems going offline, and inverter or component replacements. Reviews also mention organized coordination, clear explanations, and efficient installation timelines, including some one-day solar or battery installs.
Side-by-side, Williams Roofing appears positioned around residential roofing repair and replacement in Fremont/Alameda County, while TSP Roofing and Solar is described in the context of combined roofing, solar, and related electrical work in the Hercules/Contra Costa County area.
Why choose Williams Roofing?
- ✓ You want a Fremont-based contractor serving Alameda County for residential roof repair or replacement.
- ✓ Licensing tenure is a key factor for you; Williams Roofing has been licensed for 32 years and is active.
- ✓ Your project involves common roofing issues like leaks, full replacements, or components such as skylights.
- ✓ You value responsiveness in scheduling and communication during the job, which is frequently referenced in customer feedback.
Why choose TSP Roofing and Solar?
- ✓ You are located near Hercules or in Contra Costa County and want a contractor in that area.
- ✓ You want roofing plus solar-related work handled in one project, including coordination from planning through completion.
- ✓ Your needs include troubleshooting (for example, roof leaks, solar systems going offline, or inverter/component replacement).
- ✓ Efficient scheduling and organized project management are priorities, including timelines that may be short for certain solar or battery installs.
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Frequently Asked Questions
Yes. Both list workers’ compensation coverage and a $25,000 bond, along with active license status.
TSP Roofing and Solar is described by customers in the context of solar projects and solar troubleshooting (such as systems going offline and inverter/component replacements).
Williams Roofing is based in Fremont in Alameda County and is described as serving the local Alameda County area. TSP Roofing and Solar is based in Hercules in Contra Costa County.
Williams Roofing has been licensed for 32 years, while TSP Roofing and Solar has been licensed for 3 years.
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.