What Makes Stanek Replacement Windows Different?

Stanek Windows are custom designed, manufactured, installed, serviced and guaranteed through one company, Great Day Improvements - makers of Patio Enclosures® brand sunrooms. There are no middlemen.

Stanek Windows have among the best thermal and structural ratings in the industry.

Stanek Windows offer endless options to create the best windows for your home.

  • Unique Designs
  • Hardware Finish Options
  • Extensive Glass Options
  • Increased Safety Options
  • Interior/Exterior Color Options
  • Increased Energy-Efficiency Options


Every Stanek Window is custom made specifically for you and your home.


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