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Lacina Siding & Windows

Lacina Siding & Windows

Special Offer Today! $100 Off

Each Window Installation With Purchase of 5 or more windows.

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Ranked #1 in Customer Satisfaction
with Window and Patio Door Manufacturer Brands

For J.D. Power 2019 award information, visit

Infinity Replacement Windows

Built for life.®

Lacina Siding & Windows is a family owned and operated company by Matthew & Teresa Lacina. They, along with their three children Hannah, Noah & Isaiah live in and serve the community of Mankato, Minnesota. Matthew & Teresa started Lacina Siding & Windows Inc. in 1996.

Lacina Siding & Windows strives to answer any and all questions to ensure customers are 100% informed on every product we carry. Our window installation experts are all highly-trained, top-notch professionals. If you see them around town working on a home, feel free to stop by and visit. They are happy to answer any questions you might have. In addition to Infinity replacement windows, Lacina Siding & Windows also specializes in siding, Leafaway gutters, roofing, and doors.

Infinity replacement windows replicate the look of traditional wood but are extremely low-maintenance in comparison to traditional windows. Ultrex® fiberglass technology makes these windows energy efficient and tough (as strong as low carbon steel and 8 times stronger than vinyl). Windows remain weather tight and stable in all climates, reducing the risk of air leakage, thanks to low thermal expansion rate. These windows and doors are also customizable to meet the needs of any replacement project. They incorporate the details of traditional wood windows without the maintenance.

Lacina Siding & Windows
2104 N Riverfront Drive
Mankato, MN 56001

(507) 788-0971

"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