
Wasco Windows
Wasco Windows
WASCO Windows opened in Milwaukee in 1957 as Wisconsin Aluminum Supply Company, and was purchased by Dave Paulus in 1983. At that time, the company manufactured aluminum storm windows, siding and awnings. Under Paulus’ direction WASCO became the first company in this area to manufacture then-new vinyl replacement windows. Since 1983 the Paulus family has transformed WASCO into a company that leads the industry in manufacturing and installing highly energy efficient window products, engineered for Wisconsin’s unique climate.
"We have had our WASCO windows for over 10 years and were very pleased with the installation and the professionalism of the workers. We had one minor issue when I pulled the spring out of the side but they came and not only fixed it but showed me how I could do it myself. The man also examined other windows and gave us an evaluation of them for replacement. I continually reccomend this Wisconsin Company. CJMueller"
Cheryl M on January 2026
WASCO Windows opened in Milwaukee in 1957 as Wisconsin Aluminum Supply Company, and was purchased by Dave Paulus in 1983. At that time, the company manufactured aluminum storm windows, siding and awnings. Under Paulus’ direction WASCO became the first company in this area to manufacture then-new vinyl replacement windows. Since 1983 the Paulus family has transformed WASCO into a company that leads the industry in manufacturing and installing highly energy efficient window products, engineered for Wisconsin’s unique climate.
"We have had our WASCO windows for over 10 years and were very pleased with the installation and the professionalism of the workers. We had one minor issue when I pulled the spring out of the side but they came and not only fixed it but showed me how I could do it myself. The man also examined other windows and gave us an evaluation of them for replacement. I continually reccomend this Wisconsin Company. CJMueller"
Cheryl M on January 2026











