Looking for a trusted Basement Renovation Company to transform your unfinished or outdated lower level? S.J. Janis creates beautiful, functional basement spaces designed around your lifestyle and needs. With a full-service design-build approach, our team can help turn your basement into a comfortable family room, home theater, game room, home office, guest suite, or entertainment space.

We focus on thoughtful layouts, quality materials, and craftsmanship that integrates your renovated basement with the rest of your home. From initial consultation and design to construction and final details, S.J. Janis manages the entire remodeling process with care. Our experienced team has been helping homeowners throughout Southeast Wisconsin create meaningful living spaces for decades. 

Whether you want to maximize unused square footage or create a luxurious retreat, we can bring your vision to life. Choose S.J. Janis for professional basement remodeling backed by design expertise, skilled craftsmanship, and a commitment to exceptional results.