Thor Contracting Corporation vs A1 Home Roofing Company
East Bay Roofing Comparison · Updated January 2026
| Thor Contracting Corporation | A1 Home Roofing Company | |
|---|---|---|
| Rating | ★ 4.9 | ★ 5.0 |
| Years Licensed | 4 years | 8 years |
| License # | 1093228 | 1038281 |
| Workers' Comp | ✓ Yes | ✓ Yes |
| Bond Amount | $25,000 | $25,000 |
| Location | El Sobrante, CA | Orinda, CA |
| Website | thorcontractingcorporation.com | havealeak.com |
Our Analysis
In terms of services reflected in customer feedback, both are hired for roofing projects such as roof repairs and roof installation. Thor is also referenced for maintenance and “other project support when requested,” and customers mention coordination with inspections and permits. Comments also suggest Thor may take projects beyond the immediate area when arranged.
For A1 Home Roofing Company, customer feedback highlights competitive quotes and clear estimates, prompt scheduling, and timely completion. Reviews mention both full roof projects and smaller jobs (such as garage roofing), as well as rain-related leak situations where customers felt guided through next steps. Across both companies, the shared themes are professionalism, clear communication, and an organized process from estimate through completion, with differences mainly in tenure, location, and the specific scenarios customers mention most often.
Why choose Thor Contracting Corporation?
- ✓ You want a Contra Costa County contractor based in El Sobrante, with an active license and 4 years of licensing history.
- ✓ Your project may involve coordinating inspections and permits, since customer feedback specifically references that support.
- ✓ You’re looking for roofing work that can include repairs, installation, and maintenance, with the possibility of additional project help when requested.
- ✓ You may need scheduling aligned to a specific timeline, as feedback mentions efficient scheduling and fast turnaround.
Why choose A1 Home Roofing Company?
- ✓ You prefer a contractor based in Orinda with an active license and 8 years licensed, which may matter if you value longer licensing history.
- ✓ You want clear estimates and competitive quotes, which are frequently mentioned in customer feedback.
- ✓ Your job could be either a full roof project or a smaller scope (such as garage roofing), as both are referenced.
- ✓ You’re dealing with a leak after rain and want process explanations and guidance, which customers mention as part of their experience.
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Frequently Asked Questions
Yes. The provided data states both companies carry workers’ compensation coverage and maintain a $25,000 bond.
Thor Contracting Corporation is based in El Sobrante. A1 Home Roofing Company is based in Orinda.
A1 Home Roofing Company has been licensed for 8 years, while Thor Contracting Corporation has been licensed for 4 years.
Customer feedback for Thor Contracting Corporation specifically mentions coordination with inspections and permits. The provided information for A1 Home Roofing Company does not mention permits or inspections.
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.