SJN Construction is a locally owned contractor based in Rockford, IL. We provide installation and construction services to home owners in Northern Illinois and Southern Wisconsin.  SJN Construction is an official replacement window installer for Home Depot. 

• Replacement windows
• Installation of heating and cooling equipment 
• Duct work for new home construction and remodels
• Exterior and interior trim installation
• Custom cabinetry installation

For fast and reliable service, please give us a call for a free quote.

(815) 985-1680