Acker Roofing vs Thor Contracting Corporation
East Bay Roofing Comparison · Updated January 2026
| Acker Roofing | Thor Contracting Corporation | |
|---|---|---|
| Rating | ★ 4.9 | ★ 4.9 |
| Years Licensed | 12 years | 4 years |
| License # | 993338 | 1093228 |
| Workers' Comp | ✓ Yes | ✓ Yes |
| Bond Amount | $25,000 | $25,000 |
| Location | Concord, CA | El Sobrante, CA |
| Website | ackerroofing.com | thorcontractingcorporation.com |
Our Analysis
Service scope is more explicitly detailed for Acker Roofing. It provides residential roof repairs, full roof replacements (including tear-offs), roof inspections, and roof cleaning. Customer accounts also reference related tasks such as leak troubleshooting, dry rot repair, attic insulation blow-in, and coordination with solar panel removal and reinstallation. Projects described include storm-damage repairs, insurance-related inspections and documentation, and planned reroofing, with mentions of working around permits and inspections when applicable.
For Thor Contracting Corporation, customer feedback emphasizes process and execution: timely arrivals, clear communication on scope and pricing, efficient scheduling, and fast turnaround times. Reviews also mention clean workmanship, jobsite organization, and coordination around inspections and permits. Budget considerations appear in customer comments, including working within budgets and providing competitive bids. The dataset does not list a specific service menu for Thor beyond roofing projects generally.
Why choose Acker Roofing?
- ✓ You want a clearly described residential service range, including repairs, full replacements (tear-offs), inspections, and roof cleaning.
- ✓ Your project may involve related work mentioned by customers, such as leak issues, dry rot repair, attic insulation blow-in, or coordinating with solar panel removal and reinstallation.
- ✓ You prefer a contractor with longer time licensed (12 years) and an active license, workers’ comp coverage, and a $25,000 bond.
- ✓ Your situation may include storm damage or insurance-related inspections/documentation, where customers reference time-sensitive support and coordination.
Why choose Thor Contracting Corporation?
- ✓ You value fast turnaround and efficient scheduling, which customers frequently mention as part of the company’s process.
- ✓ You want clear communication about scope and pricing, with an organized approach from planning through completion.
- ✓ Budget constraints are a priority; customer comments reference working within budgets and providing competitive bids.
- ✓ You prefer a contractor with an active license, workers’ comp coverage, and a $25,000 bond, based in El Sobrante within Contra Costa County.
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Frequently Asked Questions
Yes. Both Acker Roofing and Thor Contracting Corporation are listed with active license status, workers’ compensation coverage, and a $25,000 bond.
Acker Roofing has been licensed for 12 years, while Thor Contracting Corporation has been licensed for 4 years.
Customer accounts for both companies mention coordinating around inspections and permits when applicable.
Acker Roofing is specifically referenced by customers for coordinating roofing work with solar panel removal and reinstallation.
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.