About Summit Shield Roofing
Third-generation craftsmanship, modern technology, and unwavering integrity
Built on a Legacy of Craftsmanship
Summit Shield Roofing was founded in 2005 by Mike Castillo, a third-generation roofer who grew up learning the trade from his father and grandfather in the Colorado mountains. What started as a two-man crew has grown into one of Denver's most respected roofing companies, serving over 2,800 residential and commercial clients.
Our mission has never changed: deliver honest assessments, use premium materials, and stand behind every roof we install. We believe in doing the job right the first time — because your roof is your home's first line of defense against Colorado's punishing weather.
Our Promise to You
Every project begins with a thorough 21-point inspection and an honest conversation about what your roof actually needs. We will never upsell you on a replacement when a repair will do the job. Our crews are factory-trained, OSHA-certified, and treat your property with the same care they'd give their own homes.
We use only premium materials from manufacturers like GAF and Owens Corning, and every installation comes with our industry-leading 25-year workmanship warranty. From the first phone call to the final walkthrough, we make the process as smooth and stress-free as possible.
Certifications & Credentials
GAF Master Elite Contractor
Only 2% of roofing contractors in North America earn this distinction, requiring proven reliability, proper licensing, and ongoing training.
Owens Corning Preferred
Factory-certified for proper installation of Owens Corning roofing systems, ensuring manufacturer warranty coverage for our customers.
BBB A+ Accredited
Maintaining our A+ rating with the Better Business Bureau since 2008, with zero unresolved complaints on record.
Ready for a Roof You Can Trust?
Contact Summit Shield today for a free, no-obligation inspection and estimate.