Mortensen Roofing & Gutters vs Thor Contracting Corporation
East Bay Roofing Comparison · Updated January 2026
| Mortensen Roofing & Gutters | Thor Contracting Corporation | |
|---|---|---|
| Rating | ★ 5.0 | ★ 4.9 |
| Years Licensed | 36 years | 4 years |
| License # | 583533 | 1093228 |
| Workers' Comp | ✓ Yes | ✓ Yes |
| Bond Amount | $25,000 | $25,000 |
| Location | Concord, CA | El Sobrante, CA |
| Website | www.mortensenroofing.com | thorcontractingcorporation.com |
Our Analysis
On services, Mortensen Roofing & Gutters is described as focusing on residential roofing-related services and gutter work, including maintenance, repairs, and replacement work. The provided information for Thor Contracting Corporation centers on roofing projects; gutter work is not specified in the data.
Customer summaries for both companies emphasize professionalism and clear communication. Mortensen Roofing & Gutters is frequently described as straightforward to work with, with references to reasonable pricing, dependable scheduling, and help with specific repair needs such as leaks and sourcing replacement materials after damage. Thor Contracting Corporation is often described as responsive and organized, with mentions of timely arrivals, efficient scheduling, fast turnaround, and coordination around inspections and permits, along with clean workmanship and jobsite organization. Both are presented as serving Contra Costa County from their respective locations.
Why choose Mortensen Roofing & Gutters?
- ✓ You want a Concord-based contractor with a long licensing history (36 years) and an active license.
- ✓ Your project includes gutters in addition to roofing, since gutter work is explicitly listed for Mortensen Roofing & Gutters.
- ✓ You expect support for repair-oriented needs (for example, leak fixes) and help sourcing replacement materials after damage, as noted in customer summaries.
- ✓ You value straightforward estimating and follow-through with scheduling and communication mentioned as consistent themes.
Why choose Thor Contracting Corporation?
- ✓ You prefer an El Sobrante-based contractor in Contra Costa County with an active license and 4 years of licensing history.
- ✓ You prioritize responsiveness and an organized process, including clear scope and pricing communication described in customer summaries.
- ✓ Fast turnaround and efficient scheduling are important, with customers noting timely arrivals and completing work within a short window.
- ✓ You want a contractor that coordinates around inspections and permits and keeps the jobsite organized, as referenced in feedback.
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Frequently Asked Questions
Yes. Both Mortensen Roofing & Gutters and Thor Contracting Corporation are listed as carrying workers’ compensation coverage and maintaining a $25,000 bond.
Mortensen Roofing & Gutters has 36 years of licensing history, while Thor Contracting Corporation has 4 years of licensing history. Both licenses are listed as active.
Gutter work is explicitly included in the description for Mortensen Roofing & Gutters. The provided information for Thor Contracting Corporation focuses on roofing and does not specifically mention gutters.
Mortensen Roofing & Gutters is based in Concord, and Thor Contracting Corporation is based in El Sobrante. Both are positioned to serve customers in Contra Costa County.
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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.