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Mortensen Roofing & Gutters vs Apollo Roofing Company

Contra Costa Roofing Contractors Comparison · Updated March 2026

Quick Verdict

Mortensen brings 36 years of licensure and a track record of long-lasting work versus Apollo's 5 years with structured project management and broader service scope.

Mortensen Roofing & Gutters: Veteran Concord contractor with over three decades of experience, high owner involvement, and proven roof longevity.
Apollo Roofing Company: Experienced Walnut Creek company with strong communication systems, daily cleanup standards, and full-service roofing capability.
Mortensen Roofing & Gutters Apollo Roofing Company
Rating 5.0 5.0
Years Licensed 36 years 5 years
License # 583533 1076767
Workers' Comp ✓ Yes ✓ Yes
Bond Amount $25,000 $25,000
Location Concord, CA Walnut Creek, CA
Website www.mortensenroofing.com www.apolloroofingcompany.com

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Key Differences

The most substantial difference is experience depth: Mortensen's 36 years of licensure means they've navigated thousands of roofs through multiple generations of materials, building codes, and weather patterns. This matters when diagnosing why a cement tile roof is failing or identifying hidden damage in older homes. Apollo's 5 years still qualifies them as experienced, but they haven't yet weathered the full lifecycle of roofs they've installed. Operationally, they differ as well. Mortensen shows high owner involvement with a focus on cement tile work and repairs, while Apollo runs a more structured operation with project managers handling communication and a broader range of services including skylights, gutters, and waterproofing. Customer feedback reveals Apollo emphasizes detailed inspections and daily cleanup protocols, while Mortensen's reviews highlight long-term roof performance and straightforward service. For complex diagnostics or specialty tile work, Mortensen's depth matters. For full replacements with coordinated components and step-by-step updates, Apollo's systems shine.

What Customers Say

Mortensen Roofing & Gutters

Customers emphasize long-term roof performance, straightforward service, and reasonable pricing with results that held up for decades.

Apollo Roofing Company

Customers highlight responsive communication, detailed inspections, daily cleanup standards, and professional project management from estimate through completion.

Key Takeaway: Mortensen's feedback centers on proven longevity and owner-direct service, while Apollo's reviews focus on structured processes and comprehensive scope coordination.

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...

Apollo Roofing Company

Jan 2026

Apollo roofing has superb service. Daniel was great to work with from beginning to end. I'm happy with that overall work and process. Their pricing was fair with others but I like the explanation of e...

Jan 2026

I'd recommend anyone to get their roof done by Apollo. They are honorable people. It was a challenging time for us as we were told our insurance was going to be cancelled because we had a cedar shake ...

Jan 2026

Sam and his team replaced the roof of our 3-unit building- including the addition 2 skylights in each unit-in just under a couple of weeks. We chose Apollo because of their initial price quotes and wa...

Consider Mortensen Roofing & Gutters if...

  • Your roof is cement tile or another specialty material where decades of hands-on experience diagnosing failure patterns provides real advantage
  • You prefer working directly with the owner rather than through project managers, especially for smaller repair projects
  • Your home is older and you value a contractor who has seen how roofs age over 30+ years and can spot problems that newer contractors might miss
  • You prioritize a proven track record of roofs that last decades over structured communication protocols
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Consider Apollo Roofing Company if...

  • Your project involves multiple components like skylights, gutters, or waterproofing that need coordination in a single scope
  • You want detailed inspections with clear explanations of options, warranties, and trade-offs before committing
  • You value daily cleanup, structured project management, and step-by-step updates throughout the job
  • You're planning a full roof replacement rather than specialized repairs and prefer a company with systems for handling larger projects efficiently
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Questions to Ask Before Hiring

  • Ask Mortensen how they handle projects that expand beyond cement tile work, and whether the owner will be on-site for your specific project type
  • Ask Apollo for references from roofs they installed 5 years ago to verify how their earliest work is holding up
  • If dry rot or hidden damage is discovered, ask both companies how change orders are priced and communicated mid-project
  • Ask both how they diagnose leak sources on older roofs and what their process is if the first repair attempt doesn't solve the problem

The Bottom Line

If your project involves cement tile, requires diagnosing problems on an older roof, or you value direct owner involvement and decades of pattern recognition, Mortensen's 36-year track record and proven long-term results make them the stronger choice. If you're planning a full replacement with coordinated components like skylights or gutters, want detailed inspections with clear explanations, or prefer structured project management with daily cleanup protocols, Apollo's systems and broader service scope are better suited to your needs. Both are properly insured and bonded. For straightforward repairs on specialty materials, lean toward Mortensen. For comprehensive replacements with multiple moving parts, lean toward Apollo.

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Frequently Asked Questions

It matters less for a simple tear-off and reshingle on a standard gable roof with no complications. It matters significantly more if your roof has unusual features, is older with potential hidden damage, or uses specialty materials. Mortensen's three decades mean they've encountered nearly every edge case and material combination, while Apollo is still building that pattern recognition.

Mortensen's 36 years of experience provides deeper pattern recognition for diagnosing hidden damage in older homes. That said, Apollo's reviews specifically mention handling dry rot discovered during projects and walking customers through added scope, so they're capable of managing surprises. The difference is depth of historical knowledge versus structured communication about changes.

The data doesn't clarify Mortensen's full service range beyond cement tile and leak repair. If your project requires coordinating multiple roofing components, ask Mortensen directly whether they handle that work or if you'd need separate contractors. Apollo clearly integrates these services based on customer feedback.

Both receive positive feedback for responsiveness and timely follow-through. Apollo's reviews emphasize structured communication with project managers providing step-by-step updates, while Mortensen's feedback points to straightforward, direct service. The difference is style rather than speed—choose based on whether you prefer systematic updates or simpler direct contact.

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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 13, 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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