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Home Remodeling & Additions in Oconomowoc, WI

Whether your family needs more space, a better layout, or a complete home update, S.J. Janis Company is here to help. We provide expert home remodeling and addition services throughout Oconomowoc, helping homeowners enhance comfort, functionality, and long-term value.

From basement finishing and custom home additions to kitchen, bathroom, and whole-home remodeling, our team creates beautiful spaces tailored to your lifestyle. With in-house design, architecture, and construction services, we manage every stage of the project from initial planning to completion, making the remodeling process simple, efficient, and stress-free.

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Expand Your Home Without Leaving Oconomowoc

With its beautiful lakes, strong sense of community, and family-friendly atmosphere, Oconomowoc is a place many homeowners are proud to call home. Instead of searching for a new house when more space is needed, investing in a thoughtfully designed home addition lets you stay in the neighborhood you love while improving the way you live.

From larger kitchens and sun-filled living areas to private primary suites and flexible bonus rooms, S.J. Janis Company creates custom home additions that feel like a natural extension of your home. Every project is carefully designed to enhance everyday living while preserving the style and character that make your home uniquely yours.

FROM START TO FINISH

It’s All in the S.J Janis Process

With our in-house architectural and interior design center, complemented by our skilled carpentry staff, we offer a cohesive blend of design and construction under one roof. This harmonious integration ensures a streamlined, efficient process from the first sketch to the final construction.

Discovery

Browse our award-winning projects and portfolio for inspiration before you contact our team for an in-house consultation.

Design

Our personalized consultation process ensures we understand exactly what you are looking for and, more importantly, why. We discuss your vision, lifestyle, and budget and how we can redesign your home to exceed your expectations.

Details

From construction plans, architectural renderings, 3D models, and interior design expertise, our team executes every detail to perfection. We incorporate creative solutions to make your dream home complete.

Delivery

Your project manager will meet you on-site for weekly meetings while our expert build team works to transform your space.

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Bringing New Life to Oconomowoc Homes

Every home tells a story, and the best remodeling projects build on what already makes it special. In Oconomowoc, where charming lake homes, established neighborhoods, and custom residences each have their own personality, remodeling is about creating spaces that feel both timeless and tailored to the way you live today.

At S.J. Janis Company, we believe great remodeling goes beyond adding square footage or updating finishes. It’s about improving the flow of your home, maximizing natural light, increasing functionality, and designing spaces that enhance everyday life. Whether you’re reimagining a single room or transforming your entire home, our experienced design-build team creates thoughtful solutions that blend seamlessly with your home’s architecture while delivering lasting beauty, comfort, and value.

Bright kitchen with white cabinets, hardwood floor, and large windows. Modern appliances, gold handles, and a bowl of vegetables complete the elegant design.
A light, elegant kitchen features a stainless steel faucet, white cabinetry, and a bowl of fresh vegetables beside a checkered cloth over the sink.
A modern kitchen features white cabinets, a stainless steel oven, open cookbook, grated cheese, and decorative plant in a woven basket.

Why Choose S.J. Janis Company?

We’ve been in business since 1951 and have transformed over 1,400 homes by drawing on our superior craftsmanship and construction quality. With over 115 awards to our name, you can expect nothing less than the best customer service and flawless results.

Get quality and convenience: we offer everything you need to transform your home all in one place. With over seven decades of experience serving the Greater Milwaukee area, our team works to preserve your existing home’s architectural and historical integrity while creating a luxury living space that better fits your evolving lifestyle.

Learn More About What Sets the S.J. Janis Team Apart
A modern wooden house with large windows, surrounded by greenery and trees, showcases a sleek architectural design in a suburban neighborhood setting.
Photo Gallery

Explore Our Home Remodeling Projects in Oconomowoc

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Frequently Asked Questions

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Dream Big. We’ll Handle the Rest.