Niederkohr Construction was founded back in 1946 after 2 soldiers returned from serving in World War II. Leonard and Albert Niederkohr had no doubt that their company would stand the test of time if they worked hard, worked honest and provided the highest quality materials and workmanship. Almost 7 decades later, their work ethic is still ingrained throughout Niederkohr Construction.
Duro-Last has been the industry leader in producing custom-fabricated single-ply roofing systems, designing each roof to fit building specifications exactly, and manufacturing it under controlled factory conditions. In addition to being custom prefabricated, the Duro-Last single-ply roofing system is durable, energy-efficient, installed with no disruptions, code compliant and backed by the industry's best warranties. The Duro-Last roofing system is the best long-term investment you can make in your building. Over two billion square feet of Duro-Last membrane have been installed throughout North America.