- Marvin Premium and Premium Insulated Fiberglass Windows Quite probably the best replacement window on the market—bar none—because it’s fiberglass.
- Grandura/Simonton Vinyl-Clad Windows The best vinyl window in the industry with the best guarantee in the world.
- Ventura Vinyl-Clad Windows Be careful! Our “better” is there “best.”
- Anderson Windows
Casement Bow Window
Casement Bay Window
Gliding Window
Awning Window
Picture Window
Casement Window
Double-Hung
Our experts can show you many types and styles of windows. They will advise you about which kinds are best for your particular needs and application. And our experienced craftsmen will install them at your home or business with the diligence and professionalism for which the Genesis name is known throughout Madison and South Central Wisconsin.