Lorenz and Associates, Inc.
Serving the Greater St Louis Metro Area
Put Our Experience and Knowledge to Work for You


We pride ourselves on seeking the right solution of budget and performance for your roof. Our unbiased, expert advice will guide you in finding the highest quality product at the most competitive price.


Our prompt, professional service is critical to protecting your building including your personnel, equipment and inventory. We excel in industry knowledge, safety, and experience.


Our company has trained, union professionals who continually engage in technical innovation. We invite you to compare our products, expertise, and service to our competition. You will find that Lorenz and Associates provides the highest quality for the lowest price. We provide Results not Excuses.

Our Services
  • Commercial, Industrial & Institutional Roofs - New or Existing
  • Roofing / Building Envelope Assessments & Maintenance Programs
  • Leak Detection & Moisture Surveys
  • Life Cycle Costing & Value Engineering
  • Design/Build Solutions & Specifications
  • Architectural Sheetmetal
  • Tenant Improvements
  • Green Vegetated Roofing Systems
  • LEED® Expertise & Sustainable Facility Solutions
  • Solar Power & PV Integrated Systems
  • Emergency Service and Repair

Successful service to our Customers
for over 36 years has prepared us to meet
your unique challenges   Today and Tomorrow.

The sooner you contact us, the more value we can deliver!

We are proud
members of:
National Roofing
Contractors Asso.
Midwest Roofing
Contractors Asso.
US Green
Building Council
United Union of Roofers,
Waterproofers & Allied Workers