Denco Windows Inc. Home Improvement Company has provided quality exterior home improvement products and services to homeowners throughout the southeast Wisconsin.

During this time, the professionals of Denco Windows Inc. Home Improvement have helped hundreds of satisfied homeowners improve the value and comfort of their homes with quality siding, replacement windows, storm doors, and many other home improvement projects.

What our Clients are saying…

Nick and his team did a great job of installing my six new replacement windows. The installation took even less time than Nick had estimated and the results were great!


– Brian of Milwaukee

Nick and company were punctual, professional and their work was nothing short of exemplary. We were so pleased with all the work done and how quickly it was all completed. We’ve referred many friends and family members to Denco. Keep up the good work!!


– Kevin & Donella of Milwaukee

 The attention to detail and quality of work was excellent! Top Quality product with a very reasonable price and top of the line professionalism. Our house feels less drafty and much more comfortable. Work crew didn’t waste any time, got the job done quickly and with very little fuss!


– Bruce & Mindy of Milwaukee

Nick and his crew did an outstanding job. They were quick, efficient, and professional. I will definitely refer Nick to my friends!!!


– Jon of Milwaukee

Denco did a great job replacing all of our old windows. We think the windows have really improved the resale value of our house, have eliminated drafts, and are much easier to open and close than the old ones. The staff is very personable and efficient.


– Richard & Carol of Milwaukee