Infinity Replacement Windows

Infinity Windows from LandMark Exteriors in Long Grove, IL

The owners and management of LandMark Exteriors bring over 50 years of experience to the home improvement installation industry. Whether its new windows, siding, doors, roofing, or soffit/fascia/gutters, the LandMark team has a proven record of satisfied customers with beautifully updated homes. In addition to Infinity replacement windows, LandMark Exteriors also specializes in doors, siding, roofing, gutters and soffit/facia.

Discover the reasons why Long Grove residents prefer Infinity replacement windows from LandMark Exteriors and schedule a free estimate.

LandMark Exteriors
1244 N Milwaukee Ave
Libertyville, IL 60048

(847) 281-9890


Monday - Friday 8-5, Saturday 9-1;

"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