Infinity Replacement Windows

Infinity Windows from Fettig Millwork and Windows in Mandan, ND

Fettig Millwork and Windows is a home improvement dealer Mandan trusted to provide long-lasting products and lifetime service. Our mission is to help make your home become more aesthetically pleasing, secure, and special, all while delivering a home remodeling experience that is enjoyable and stress-free. Aside from Infinity replacement windows from Marvin, Fettig Millwork and Windows also specializes in doors and skylights.

Talk to a friendly home improvement expert from Fettig Millwork and Windows today and schedule a free estimate for Infinity replacement windows in your home.

Fettig Millwork and Windows
800 W Main St
Mandan, ND 58554-2620

(701) 426-8394


M-F 8-6 Sat by appointment;

We attended the Spring Home Show and looked into 3 different brands of windows. We did our research and were most impressed with Infinity from Marvin. Not only because of the window itself but also because they could match the oak floors, trim, and oak cabinets. Not only did they match it but it looks incredibly beautiful. We chose to add the bow window. It was perfect. Steve was a knowledgeable and sincere salesman. The service was incredible, the installers, more incredible. The team sent up here were meticulous about every fine detail of the installation and very thoughtful about our time, home and space. And...the windows are fantastic. Good investment. Highly recommend them over other name brands.

Infinity Replacement Windows

Infinity windows are custom-built for your home with Ultrex® fiberglass to strike the perfect balance between performance and design.

Infinity Replacement Doors

Infinity doors offer durable Ultrex fiberglass performance combined with thoughtful design features that improve your view.

We'll streamline your entire
replacement project