
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.
"Not long after we moved to Menomonee Falls and purchased our home, we had WASCO replace all twelve of our windows. Compared to our prior home these windows were a huge improvement! The ease of cleaning them from inside (multiple stories) was one of the best things along with a lifetime warranty. Years later there was a small issue with one and within days the service manager himself cam and inspected and did this minor repair. In this day and age that is a most impressive level of service. We highly recommend this fine company that has been in existence for all these years, unlike other others. I have no qualms recommending them. Lowell T. Carl Menomonee Falls."
Lowell C 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.
"Not long after we moved to Menomonee Falls and purchased our home, we had WASCO replace all twelve of our windows. Compared to our prior home these windows were a huge improvement! The ease of cleaning them from inside (multiple stories) was one of the best things along with a lifetime warranty. Years later there was a small issue with one and within days the service manager himself cam and inspected and did this minor repair. In this day and age that is a most impressive level of service. We highly recommend this fine company that has been in existence for all these years, unlike other others. I have no qualms recommending them. Lowell T. Carl Menomonee Falls."
Lowell C on January 2026












