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Business Details
50+ Years
experience
Trusted Commercial Roofing & Waterproofing Solutions
Since 1957, Letner Roofing has established itself as the premier full-service roofing and waterproofing resource for commercial contractors and facilities managers across the Western United States. Our reputation for workmanship, reliability, and service has made our name synonymous with top-quality roofing solutions. We deliver on promises without excuses, arriving on time fully equipped with the crew, fleet resources, and materials necessary to complete projects on schedule and within budget. With nearly two billion square feet of installed roofing systems, our experienced teams handle everything from design and installation to repair and preventive maintenance.

Our investment in a diverse, multi-million-dollar fleet ensures operational readiness, while our exclusive Peace-of-Mind Guarantee assures complete satisfaction with workmanship and materials. As an active member of leading industry associations, we maintain the highest standards of professionalism and technical expertise. Our commitment to innovation is evident in our specialized sheet metal fabrication division and advanced waterproofing techniques. We prioritize long-term client relationships through transparent communication, financial stability, and a dedication to exceeding industry expectations.
Services
Roofing Sheet Metal Waterproofing Preventative Maintenance Custom Fabrication Metal Roofing Garage Deck Protection Balcony Waterproofing Green Roofs Reflective Coatings
Details
  • Year established: 1957
Highlights and features
  • We have over 65 years of experience in commercial roofing since 1957
  • Our owned fleet ensures timely project completion without delays
  • We maintain active memberships in leading industry associations
  • We offer exclusive Peace-of-Mind Guarantee for workmanship assurance
  • Our in-house sheet metal fabrication division provides custom solutions
Associations and certifications
  • National Roofing Contractors Association
  • Roofing Contractors Association of Southern California
  • Western States Roofing Contractors Association
  • Union Roofing Contractors Association
  • Building Industry Association
Services
Roofing
We provide comprehensive roofing solutions for commercial structures, including modified bitumen, single-ply, clay tile, and asphalt shingle systems. Our LEED-certified and cool-roof options meet modern energy efficiency standards while ensuring durability. With nearly two billion square feet installed, our experienced teams deliver precision installation and repairs for both new construction and replacement projects.
Sheet Metal
Our in-house sheet metal division creates custom architectural and industrial components from copper, aluminum, and stainless steel. We fabricate gutters, coping, fascia, and wall panels that combine aesthetic appeal with weather resistance. The service includes precision engineering for skylights, roof hatches, and ventilation systems, ensuring seamless integration with existing structures.
Waterproofing
We implement advanced waterproofing systems using hot rubberized membranes, cold fluid applications, and methance gas liners. Our specialists protect critical areas like garage decks, balconies, and below-grade structures through material selection matched to environmental conditions. The service includes paver systems and deck coatings that prevent water intrusion while maintaining structural integrity.
Preventative Maintenance
Our customized maintenance plans extend roof system longevity through regular inspections and proactive repairs. Skilled technicians identify potential issues before they escalate, reducing emergency repair costs. The service includes condition assessments, cleaning, and component replacements to maintain optimal performance and warranty compliance for commercial properties.
Green Roofs
We design and install sustainable green roof systems that combine vegetation with waterproofing layers. These systems improve building energy efficiency, manage stormwater runoff, and provide urban green space. Our solutions meet LEED certification requirements while ensuring structural load capacity and long-term water protection for commercial properties.
People
Joe Smith
Founder/CEO
With over 65 years of industry experience, Joe established Letner Roofing's reputation for excellence through technical innovation and customer-focused service delivery.
Janet Smith
Founder/CEO
As co-founder, Janet has driven the company's growth while maintaining strict quality control standards across all roofing and waterproofing operations.
John Doe
Head Manager
John oversees daily operations, ensuring efficient project execution and adherence to safety protocols across commercial roofing installations and maintenance projects.
Jane Doe
Partner
Jane manages client relations and strategic partnerships, maintaining Letner Roofing's position as a trusted resource for commercial contractors and facilities managers.
Questions
What types of roofing systems do you install?
We install modified bitumen, single-ply, clay tile, asphalt shingles, and green roof systems with LEED-certified options.
Do you offer waterproofing services for commercial structures?
Yes, we provide comprehensive waterproofing using hot rubberized membranes, cold fluid applications, and methane gas liners for decks and below-grade structures.
How does your preventative maintenance program work?
Our customized plans include regular inspections, cleaning, and component replacements to extend roof lifespan and maintain warranty compliance.
Can you handle large-scale commercial projects?
With nearly two billion square feet installed, our teams manage projects of any size using our owned fleet and in-house resources.
Do you provide sheet metal fabrication services?
Yes, our in-house division creates custom architectural and industrial components from copper, aluminum, and stainless steel.