About Us

Top Notch Building Supply has serviced the Northern Illinois region for over 30 years.

Our sales staff has an average of 25 years of industry experience. We work closely with home owners and contractors alike to get the project done right. Top Notch handles a full line of highly reputable products that will provide lasting quality and beauty to your home. With brands like KraftMaid Cabinets, Andersen Windows, Trex Decking, Certainteed roofing and siding, Mohawk flooring, and Cambria Quartz our products are well known in the industry.

Our location just off US-20 between Rockford and Freeport, gives us easy accessibility to virtually anywhere in the region.

Curt and Linda Knapp co-founded Top Notch in 1987. In their 29 years of leadership it grew from a $600,000 home center to a $4,500,000 building material dealer with land development, finance, and installed sales divisions. Curt stepped away from the business over 10 years ago and Linda retired at the end of 2017. We proudly carry on the tradition they set forth of supplying quality products and expertise in the home building/improvement industry and providing quality jobs in the area.

Learn more about Top Notch and our team of experts below: