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Mortensen Roofing & Gutters vs Pacific Coast Roofing Service

Contra Costa Roofing Contractors Comparison · Updated March 2026

Quick Verdict

Mortensen brings 36 years of experience versus Pacific Coast's 11 years, a significant difference when diagnosing hidden damage or handling complex tile roof repairs.

Mortensen Roofing & Gutters: A veteran contractor with over three decades specializing in cement tile roofs, leak troubleshooting, and long-lasting repairs.
Pacific Coast Roofing Service: An established contractor with broad project experience spanning full replacements, flat roofs, skylights, and multi-property coordination.
Mortensen Roofing & Gutters Pacific Coast Roofing Service
Rating 5.0 5.0
Years Licensed 36 years 11 years
License # 583533 1002352
Workers' Comp ✓ Yes ✓ Yes
Bond Amount $25,000 $25,000
Location Concord, CA Martinez, CA
Website www.mortensenroofing.com pcroofingservice.com

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Key Differences

The 25-year gap in licensure is the most significant differentiator here. Mortensen's 36 years means decades of experience diagnosing hidden damage beneath tile, understanding how older roof systems fail, and troubleshooting persistent leaks that newer contractors might miss. This depth matters particularly for cement tile work, where improper repairs can cause cascading damage. Pacific Coast's 11 years still qualifies as established, but their strength lies in versatility rather than specialization—they handle everything from flat roofs to gutters to insurance documentation, with reviews mentioning repeat customers using them across multiple properties. Mortensen's feedback emphasizes longevity of results and targeted expertise, while Pacific Coast's reviews highlight thorough inspections, material guidance, and organized management of diverse project types. Both show high owner involvement and professionalism, but Mortensen appears focused on repairs and tile work, whereas Pacific Coast clearly handles more full replacements and varied roofing systems.

What Customers Say

Mortensen Roofing & Gutters

Customers emphasize Mortensen's long-term roof performance, professional estimating, and specific success with cement tile repairs and persistent leak resolution.

Pacific Coast Roofing Service

Customers highlight Pacific Coast's thorough inspections, detailed material guidance, organized scheduling across diverse project types, and repeat use across multiple properties.

Key Takeaway: Mortensen's reviews focus on specialized tile expertise and decades-long durability, while Pacific Coast's feedback emphasizes versatility across project types and systematic management of complex scope decisions.

Customer Reviews

Mortensen Roofing & Gutters

Jul 2024

Mortensen Roofing roofed our house 35 years ago and it still stand strong. That is until a branch came and chipped a cement tile - they were great and helping me procure a new one a tiny bit different...

Oct 2023

Very reasonably priced. Quality workmanship. Timely and consistent with deign.

Jun 2021

From the estimate forward, I found working with the owner, John Mortensen, to be easy and professional. His bid was clearly the best I received. His crew, especially the supervisor, Humberto were skil...

Pacific Coast Roofing Service

Jan 2026

I recommend Pacific Coast Roofing! They are an amazing team and did great work! We are so impressed by how well their team works together, their skill, and professionalism. We are so happy with the wo...

Oct 2025

Tell me the post

Jun 2025

As a former general contractor I've seen a variety of roofing contractors in action. Pacific Coast was a pleasure to deal with on my home. The estimate was clear, the decisions to make on details were...

Consider Mortensen Roofing & Gutters if...

  • Your home has an older cement tile roof that needs specialized repair or replacement, particularly if you need someone who understands how these systems age and fail
  • You're dealing with a persistent leak that other contractors haven't successfully diagnosed, where deep troubleshooting experience matters more than project variety
  • You value a contractor whose work has demonstrably lasted decades, with customer feedback specifically mentioning roofs holding up over many years
  • Your project is repair-focused or maintenance-oriented rather than a complete roof replacement
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Consider Pacific Coast Roofing Service if...

  • You need a full roof replacement, flat roof work, or projects beyond traditional tile repair such as skylights, gutters, or outbuilding roofs
  • You're coordinating roofing with other work like solar installation or need help with insurance and inspection documentation
  • You own multiple properties and want a contractor experienced in managing ongoing relationships across different project types
  • You need detailed material selection guidance and thorough inspections as part of the estimating process, particularly for complex scope decisions
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Questions to Ask Before Hiring

  • Ask Mortensen about their experience with full roof replacements if that's your need, since reviews emphasize repair work and tile expertise
  • Ask Pacific Coast how many cement tile roofs they've repaired in the past year if that's your specific project type
  • Ask both contractors for references from projects completed 5+ years ago to verify long-term performance claims
  • Ask about the specific crew members who will work on your project and how long they've been with the company

The Bottom Line

If you have a cement tile roof needing repair or you're troubleshooting a persistent leak on an older home, Mortensen's 36 years of specialized experience is a meaningful advantage worth prioritizing. For full roof replacements, flat roofs, projects involving multiple systems like gutters and skylights, or if you need a contractor for ongoing work across multiple properties, Pacific Coast's broader project range and proven organizational systems make them the better fit. Both are properly insured and professionally run, so this comes down to whether you need deep specialization or versatile capability. Get estimates from both this week.

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Frequently Asked Questions

Not necessarily. For a standard full replacement with modern materials, Pacific Coast's 11 years is plenty of experience, and their reviews specifically mention organized replacement projects with material guidance. Mortensen's veteran status matters most for complex tile repairs, persistent leak diagnosis, or situations where you need someone who's seen every possible failure mode in older roof systems.

Their reviews do mention tile roof inspections and repairs, so they're not unfamiliar with the material. However, Mortensen's specific emphasis on cement tile work and decades of focused experience suggests deeper expertise for complicated tile issues. Ask Pacific Coast directly about recent cement tile projects and request references if that's your roof type.

Pacific Coast clearly handles a broader range of project types, with reviews specifically mentioning gutter replacement, skylight work, and coordination with solar installations. Mortensen's feedback focuses primarily on roofing and roof leaks. If you want one contractor managing multiple systems, Pacific Coast's versatility is an advantage.

The data doesn't provide pricing comparisons, but Mortensen's reviews specifically mention "reasonable pricing" compared to other bids. Both companies appear to provide clear, detailed estimates. Get bids from both and compare not just price but what's included in scope and warranty terms given their different experience levels.

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How We Compare Contractors

License Verification

All license data is sourced from official California CSLB records and verified regularly.

Review Analysis

Customer reviews are aggregated from Google and analyzed to identify patterns in service quality.

Detailed Comparison

We analyze credentials, insurance, experience, and feedback to highlight meaningful differences.

Not all licensed contractors are created equal. While a valid license is the baseline requirement in California, contractors can vary significantly in experience, insurance coverage, and customer satisfaction.

  • Experience matters: A contractor with 15+ years of experience has likely encountered and solved problems that newer contractors haven't faced yet.
  • Workers' compensation protects you: If a contractor without workers' comp insurance has an employee injured on your property, you could be held liable.
  • Reviews reveal patterns: Individual reviews can be misleading, but patterns across many reviews often reveal a contractor's true strengths and weaknesses.
  • Bond amounts vary: A contractor's bond provides financial protection if they fail to complete work as agreed. Higher bonds offer more protection.

Taking time to compare contractors on these factors can save you from costly mistakes and help ensure your project is completed by a qualified professional.

Data Sources: License information from California CSLB. Ratings and reviews from Google. Last verified March 08, 2026.

This comparison is based on publicly available information. We recommend getting multiple quotes and verifying all credentials directly before hiring.

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