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Home Additions & Remodeling in Waukesha, WI

Modern kitchen with dark cabinets, wooden island, and stainless steel appliances. Features a pendant light, gold faucet, and chevron-patterned backsplash.

Revitalizing homes isn’t just our profession at S.J. Janis Company Inc. — it’s our passion. As a leading home remodeling and renovation company serving homeowners in the community of Waukesha, Wisconsin, we transform your living spaces into functional and aesthetic havens that match your lifestyle and tastes. Whether you dream of expanding your home with new additions or want a whole-house remodeling project, S.J. Janis is committed to bringing those dreams to life.

Our expertise in home remodeling extends far beyond the ordinary. 

For over 70 years, we’ve been honing our craft, delivering exceptional work and quality construction across the Greater Milwaukee area. We’ve successfully transformed over 1,400 homes, earning us over 115 awards and the trust of countless satisfied customers.

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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.

step 1

Discovery


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Discovery

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

step 2

Design


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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.

step 3

Details


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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.

step 4

Delivery


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Delivery

Your project manager will meet you on-site for weekly meetings while our expert build team works to transform your space.
Learn More About Our Process
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 Waukesha, WI

Home Remodeling Brookfield
Waukesha Primary Bath Remodel
1928 Historic Interior & Kitchen Remodeling
View Our Complete Portfolio

Frequently Asked Questions

Dream Big. We’ll Handle the Rest.