Our Services

  1. 24/7 real people answering our phones
  2. St. Louis owned and operated
  3. 50 years of St. Louis commercial roofing expertise
  4. Thermal imaging
  5. We help perform your design work
  6. Maintenance programs
  7. Roof repairs our specialty
  8. All Sielfleisch employees - no subcontractors!
  9. A Company You Can Count On

St. Louis owned and operated


The Sielfleisch name has been synonymous with quality commercial roofing since 1952. Either Mark or Kevin Sielfleisch visits our job sites every day to ensure that we provide our customers with the highest level of commercial roofing and service. With over 70 years of combined roofing experience in the St. Louis area, Dan Smith and Dennis Swanston are able to consider the extreme Midwestern weather conditions your roof will encounter. In assessing each new roof installation or repair we are able to help our customers make choices for the most cost effective options.

Our highly qualified roofers, job site superintendents, estimators and office staff all work together to provide our customers with superior customer service and a quality roofing system.


50 years of St. Louis commercial roofing expertise




We help perform your design work


Our management team has over 70 years of commercial roofing expertise in St. Louis and its surrounding areas. We understand the particular St. Louis climate that your roof must endure. Let us help you determine the proper type of material and installation techniques for your roof before you start your project.

Our design expertise can save you money now and help extend the life of your roof.


All Sielfleisch employees - no subcontractors!


Everyone working on your job site is our employee and a member of United Union of Roofers and Waterproofers – Local 2. Our employees have worked together for years and receive regular training in the latest methods of installation as well as standardized safety procedures. Prior to the start of our roofing projects we conduct an extensive evaluation to produce a formal OSHA compliant action plan as well as weekly job site safety meetings. Procedures and equipment are constantly checked to ensure all work is completed in a safe and efficient manner.

Call us now to see how our expertise can save you future roofing costs.

24/7 real people answering our phones


No answering machines – ever!

A Company You Can Count On


Because Sielfleisch Roofing is locally owned and operated each roof we work on gets detailed attention. We are available and “in town” to meet with you and discuss what roofing system is best for your building. Sielfleisch Roofing has a history of providing the St. Louis area customers with the highest level of roofing services.

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