Mortensen Roofing & Gutters vs Williams Roofing
East Bay Roofing Comparison · Updated January 2026
| Mortensen Roofing & Gutters | Williams Roofing | |
|---|---|---|
| Rating | ★ 5.0 | ★ 4.6 |
| Years Licensed | 36 years | 32 years |
| License # | 583533 | 687391 |
| Workers' Comp | ✓ Yes | ✓ Yes |
| Bond Amount | $25,000 | $25,000 |
| Location | Concord, CA | Fremont, CA |
| Website | www.mortensenroofing.com | williamsroofing.net |
Our Analysis
Mortensen Roofing & Gutters is located in Concord in Contra Costa County and shows 36 years of licensing history. Its stated scope includes roofing and gutter work, and customer comments mention support for specific repair situations such as addressing leaks and helping source replacement materials after damage, alongside larger roofing projects. This may be relevant for homeowners who want a contractor that explicitly includes gutters in its described services.
Williams Roofing is located in Fremont in Alameda County and shows 32 years of licensing history. Customer feedback frequently references roof repairs and full roof replacements, including leak-related work and completing projects as promised. Reviews also describe a straightforward approach to recommendations and not pushing unnecessary work. In practical terms, the choice may come down to service area convenience (Concord vs. Fremont) and whether gutter work is a key part of the project scope.
Why choose Mortensen Roofing & Gutters?
- ✓ Located in Concord (Contra Costa County), which may be convenient for homeowners in and around that area.
- ✓ 36 years of licensing history with an active license, plus workers’ compensation coverage and a $25,000 bond.
- ✓ Described service focus includes both roofing and gutter work for residential properties.
- ✓ Customer feedback mentions handling leak repairs and helping source replacement materials after damage, along with completing larger roofing jobs with clear communication and dependable scheduling.
Why choose Williams Roofing?
- ✓ Located in Fremont (Alameda County), which may be a better geographic fit for East Bay homeowners closer to Alameda County.
- ✓ 32 years of licensing history with an active license, plus workers’ compensation coverage and a $25,000 bond.
- ✓ Customer feedback commonly references roof repairs and full roof replacements, including leak-related work.
- ✓ Reviews describe responsive communication, timely scheduling, and a straightforward approach to recommendations (including not pushing unnecessary work).
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Frequently Asked Questions
Yes. The provided data lists workers’ compensation coverage for both companies and a $25,000 bond for each.
Mortensen Roofing & Gutters lists 36 years of licensing history, while Williams Roofing lists 32 years.
Mortensen Roofing & Gutters is described as focusing on roofing-related services and gutter work. The provided information for Williams Roofing does not explicitly list gutter services.
Mortensen Roofing & Gutters is based in Concord (Contra Costa County), and Williams Roofing is based in Fremont (Alameda County). Location can affect travel time, scheduling, and whether the contractor commonly serves your neighborhood.
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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.