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Wilcon's Commitment to you
Building for your growth and success is of utmost importance to Wilcon Construction, Inc. and JAND Development, Inc.  Dedication to excellence and a teamwork approach assure you of a successful building experience. Your expectations will be met with professionalism, superior craftsmanship, and attentive service.  

We are dedicated to our 45 employees, our customers, and our community.  As those around us develop as individuals, firms, and communities Wilcon grows as an organization.

Company History

Wilcon Construction Inc. is owned by William and Kirsten Freitag.   William's Construction career began at his father's masonry business. The need for general construction services in southern Minnesota led William to 1986, and continues to do business as Wilcon Construction, Inc. The third generation, Andrew, Nicholas, and David Freitag now take an active role running the business.

Knowledgeable project managers and estimators will assist you with your building needs from start to finish. Skilled craft workers who are experienced in new construction, additions, and renovations will construct your project, with your business requirements as their first priority. Wilcon has annual revenues of nearly 10 million dollars, specializing in residential, industrial, and commercial construction:


Wilcon Construction is committed to providing you with a quality job at a fair price. To ensure this goal is reached, construction skill training and safety education opportunities are provided regularly to Wilcon employees.

Your building project will use materials and techniques that are able to provide the highest value to your business like energy effiecient vinyl windows made locally by Lindsay Windows. Wilcon Construction, Inc. keeps up-to-date on the best construction trends through active participation in trade organizations including: Jack Miller Construction Network, the Greater Mankato Chamber of Commerce, Minnesota River Builders Association, and the Associated Builders and Contractors of Minnesota.

Call Us With Your Construction Needs.


Wilcon Construction Inc.

1512 7th Avenue S.

St. James, MN 56081

507-375-5464 St. James or 507-345-6653 Mankato or 800-450-6625 Toll Free or visit us online at

My experience with Lindsay Windows has been incredible.  I first engaged them via the Chat feature online just to get a rough quote in place while shopping around for replacement windows for my …