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Business Details
50+ Years
experience
Commercial Roofing Solutions in Alexandria, MN
Established in 1974 by Ed Buttweiler, our company has grown from a single-generation enterprise into a family-led commercial roofing leader serving Minnesota and adjacent states. With over 40 years of accumulated expertise, we specialize in delivering durable, code-compliant roofing solutions for diverse industries. Our team combines advanced engineering capabilities with hands-on technical proficiency to execute complex projects spanning new construction, re-roofing, and ongoing system maintenance. Certified by Versico with Excalibur Status for 28 consecutive years, we maintain rigorous quality standards while ensuring personalized service for every client.

Backed by 13 million square feet of successfully installed commercial rubber roofing systems, our reputation for guaranteed workmanship remains unmatched in the Midwest. The second-generation leadership continues Ed Buttweiler's original commitment to professional integrity, ensuring every project meets both structural requirements and client expectations through transparent communication and technical excellence.
Services
Single Ply Roofing Asphalt Built-Up Roofing Sheet Metal Roofing Roof Maintenance Specialty Metal Work Commercial Roof Repair EPDM Roofing PVC Roofing TPO Roofing Metal Roof Systems
Details
  • Year established: 1974
Highlights and features
  • 40+ years of commercial roofing expertise since 1974
  • Exclusively selected Versico Excalibur Status contractor for 28 years
  • Specialized engineering capabilities for complex roofing systems
  • Proven track record with 13 million sq ft installations
  • Family-owned commitment to personalized service and quality
Associations and certifications
  • Versico Excalibur Status
Services
Single Ply Roofing
Offering EPDM, TPO, and PVC single-ply roofing solutions with superior seam strengths and UV resistance. These systems provide cost-effective, durable protection for low-slope commercial buildings while meeting green building requirements through energy-efficient materials. Our certified installers ensure watertight integrity with manufacturer-backed warranties.
Asphalt Built-Up Roofing
Traditional built-up roofing systems combining asphalt/bitumen with multiple plies for exceptional wind, hail, and snow resistance. Ideal for facilities requiring maximum durability in extreme weather conditions. Our application methods maintain structural integrity while optimizing lifespan through proper layer adhesion and drainage systems.
Sheet Metal Roofing
Custom-engineered metal roofing with standing seam designs offering 50+ year lifespans. Provides unmatched design flexibility for curved or angular structures while maintaining waterproof performance. Available with eco-friendly coatings and integrated snow retention systems for northern climates.
Commercial Roof Repair
Comprehensive repair services for all commercial roof types, including leak detection, membrane patching, and flashing restoration. Our rapid response team addresses urgent issues while implementing long-term solutions to prevent recurring damage and extend system life cycles.
Roof System Engineering
Advanced engineering services for new construction and re-roofing projects. We analyze structural requirements, climate factors, and building codes to develop customized solutions that optimize performance, energy efficiency, and compliance with regulatory standards.
People
Ed Buttweiler
Founder
Established the company in 1974 after starting as a commercial roofer in 1960. Set foundational standards for quality and customer satisfaction that continue guiding the second-generation leadership team.
Ted Buttweiler
President
Second-generation leader maintaining family commitment to excellence. Oversees operations with 25+ years of hands-on experience implementing advanced roofing technologies while preserving personalized client relationships.
Robb Buttweiler
Project Manager
Coordinates complex commercial installations with technical expertise developed over 20 years. Ensures seamless execution from design phase through final inspection while maintaining budgetary controls and quality assurance.
Cindy Wenner
Operations Director
Manages day-to-day business operations and client communications with 18 years of specialized roofing industry experience. Implements efficiency improvements while maintaining personalized service for commercial clients.
Brian Stockert
Senior Engineer
Lead technical expert designing customized roofing systems for complex commercial structures. Applies 22 years of engineering knowledge to develop solutions balancing code compliance, energy efficiency, and structural integrity.
Questions
What commercial roofing services do you offer?
We provide single-ply (EPDM, TPO, PVC), built-up asphalt, and sheet metal roofing systems, including new installation, repairs, and maintenance across Minnesota and surrounding states.
How experienced are your roofing professionals?
Our team has 40+ years of commercial roofing experience since 1974, with 28 consecutive Versico Excalibur Status awards. Second-generation leadership ensures continued expertise and quality.
Do you work outside Minnesota?
Yes, we serve commercial clients throughout Iowa, Wisconsin, North Dakota, and South Dakota in addition to Minnesota.
What makes your roofing systems stand out?
We offer advanced engineering capabilities with 13 million sq ft of successfully installed commercial rubber roofing systems, featuring Versico-certified applications and multiple warranty options.
How do you ensure quality workmanship?
Through Versico certifications, Excalibur Status recognition, and 40+ years of maintaining guaranteed workmanship standards with comprehensive quality control processes for every project.