Calisco Roofing vs Mortensen Roofing & Gutters
East Bay Roofing Comparison · Updated January 2026
| Calisco Roofing | Mortensen Roofing & Gutters | |
|---|---|---|
| Rating | ★ 5.0 | ★ 5.0 |
| Years Licensed | 3 years | 36 years |
| License # | 1105093 | 583533 |
| Workers' Comp | ✓ Yes | ✓ Yes |
| Bond Amount | $25,000 | $25,000 |
| Location | Brentwood, CA | Concord, CA |
| Website | caliscoroofing.com | www.mortensenroofing.com |
Our Analysis
On services, Calisco Roofing is specifically described as providing residential roofing inspections, leak repairs, maintenance, and roof replacement. Examples referenced include low-slope roofing, tile roof maintenance and repairs, PVC membrane roofing, torch-down roofing, gutter cleaning, and roof vent/flashing installation. Mortensen Roofing & Gutters is described more generally through customer feedback as supporting both larger roofing projects and smaller fixes, including leak-related repairs and help sourcing replacement materials after damage.
In terms of customer-reported experience, Calisco Roofing is commonly associated with responsiveness, timely scheduling for estimates and repairs, thorough on-roof inspections, and documentation such as before-and-after photos, along with cleanup. Mortensen Roofing & Gutters is commonly described as professional and straightforward, with clear communication, dependable scheduling, and workmanship that meets expectations; customers also mention reasonable pricing and timely follow-through.
Why choose Calisco Roofing?
- ✓ You want a Brentwood-based contractor serving the surrounding Contra Costa County area.
- ✓ Your project involves specific roof types or tasks mentioned in the data, such as low-slope work, tile maintenance/repairs, PVC membrane, torch-down, gutter cleaning, or vent/flashing installation.
- ✓ You value detailed inspection practices and project documentation (for example, before-and-after photos) as part of the process.
- ✓ You expect frequent coordination around estimates, urgent leak response, and clear explanations of options and scope.
Why choose Mortensen Roofing & Gutters?
- ✓ You prefer a Concord-based contractor within Contra Costa County.
- ✓ You want a company with a longer licensing history (36 years licensed, per the provided data).
- ✓ Your needs include anything from smaller repairs to larger roofing projects, including leak-related work.
- ✓ You may benefit from help sourcing replacement materials after damage, as referenced in customer feedback.
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Frequently Asked Questions
Yes. The provided data lists both companies with active license status and workers’ compensation coverage.
Yes. Each company is listed as maintaining a $25,000 bond.
Mortensen Roofing & Gutters is listed as 36 years licensed, while Calisco Roofing is listed as 3 years licensed.
The data references residential inspections, leak repairs, maintenance, and roof replacement, with examples including low-slope roofing, tile roof maintenance/repairs, PVC membrane roofing, torch-down roofing, gutter cleaning, and roof vent/flashing installation.
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.