Stanek brand vinyl replacement windows and patio doors are exclusively manufactured and installed by Great Day Improvements. Known for their superior energy-efficiency, performance and durability, Stanek™ brand windows are the ultimate choice for your home. But what you’ll really fall in love with is the way they look. Handcrafted specifically for your home with exquisite detail, Stanek Windows offer endless custom options including woodgrain interiors and custom exterior colors. To learn more about Stanek Windows, visit our website www.stanekwindows.com.