Mortensen Roofing & Gutters vs Alpha Roofing
East Bay Roofing Comparison · Updated January 2026
| Mortensen Roofing & Gutters | Alpha Roofing | |
|---|---|---|
| Rating | ★ 5.0 | ★ 5.0 |
| Years Licensed | 36 years | 1 years |
| License # | 583533 | 1129832 |
| Workers' Comp | ✓ Yes | ✓ Yes |
| Bond Amount | $25,000 | $25,000 |
| Location | Concord, CA | Oakland, CA |
| Website | www.mortensenroofing.com | alpharoofing.com |
Our Analysis
Service positioning differs slightly based on the descriptions provided. Mortensen is described as a roofing and gutter contractor focused on residential properties, including maintenance, repairs, and replacement work. Alpha Roofing is presented through customer feedback primarily in the context of roofing projects; gutter work is not explicitly stated in the provided data.
Customer feedback themes overlap in several areas. Both are described as professional, with clear communication from estimate through completion and results that met expectations. Mortensen’s feedback more often references help with specific repair needs such as addressing leaks and assisting with sourcing replacement materials after damage. Alpha’s feedback more often emphasizes organized project coordination, punctual crews, regular updates during the job, finishing details, and end-of-project cleanup, with some mentions of responsiveness to leak concerns.
Why choose Mortensen Roofing & Gutters?
- ✓ You want a Concord-based contractor serving the Contra Costa County area.
- ✓ You prefer a company with a longer licensing history (36 years) while still holding an active license.
- ✓ Your project includes gutters in addition to roofing, since gutter work is explicitly part of the company’s described services.
- ✓ Your needs may include repairs such as leak work and help sourcing replacement materials after damage, which are mentioned in customer feedback themes.
Why choose Alpha Roofing?
- ✓ You want an Oakland-based contractor in Alameda County.
- ✓ You are comparing active, bonded, workers’ comp–covered contractors and are comfortable with a shorter licensing history (1 year).
- ✓ You value an organized process with frequent updates, punctual crews, and coordinated scheduling, which are common themes in customer feedback.
- ✓ You care about finishing details and end-of-job cleanup, which are specifically highlighted in customer experiences.
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Frequently Asked Questions
Yes. Both list an active license and indicate workers’ compensation coverage in the provided data.
Yes. Both are listed with a $25,000 bond.
Mortensen Roofing & Gutters has 36 years of licensing history, while Alpha Roofing has 1 year of licensing history.
Mortensen Roofing & Gutters is explicitly described as a roofing and gutter contractor. The provided information for Alpha Roofing does not explicitly mention gutter services.
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.