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Remodeling Firm | S.J. Janis Company

At S.J. Janis, our mission is simple: Make your dream home a reality.

Since 1951, our award-winning design-build team has been the most trusted name in home renovation throughout Southeast Wisconsin, collaborating with more than 1,400 homeowners like you to transform their homes into the inspired living spaces they’ve always wanted. 

From home services, kitchens, and baths to additions and whole house renovations, our full-service team of designers, consultants, and craftspeople work together to bring your vision to life, on time and within your budget.

Meet the Team!

The S.J. Janis Way

What sets us apart from the rest of the home renovation companies in Southeast Wisconsin? 

  • A holistic approach to every project
    When you work with S.J. Janis, you get a team of experts for every step of the process, from consult to design to build and beyond. Having in-house experts for every step of the process allows for constant collaboration, clear understanding, and seamless transitions.
  • An extraordinary standard
    We realized early on that we weren’t just renovating living spaces. We were transforming the quality of life for every family that hires us. And we dedicated ourselves to making sure every family got our absolute best every time. That means exceptional craftsmanship and construction quality, plus outstanding customer service via constant communication and remaining on schedule and budget.
  • A Business Built On Trust
    If you’re reading this, there’s a good chance someone you know referred us. In fact, more than half of our business comes from referrals. Our reputation for quality work and excellent customer service has led to us earning Guild Quality rankings of 98% in the value of “trust,” 99% in “expertise,” and 96%  in “would work with S.J. Janis again or recommend them to a friend.”

“A top quality company. Design-build done the way it should be. S.J. Janis guides you through every step providing expert advice and solutions. No project will ever be perfect but S.J. Janis comes very close, and more importantly. S.J. Janis will always make things right in the end. Quality and customer satisfaction is their number 1 priority and you can be confident the job will get done right and on time.”

—Kevin Q., Mount Pleasant, WI

The History of S.J. Janis


  • Original owner Samuel Joseph Janis opens S.J. Janis the Standard Heating Company
  • Janis expands his company’s services in the summertime, providing carpentry as well as siding and roofing projects for his heating clients


  • S.J. Janis shifts service focus from heating to carpentry work along with window and siding replacement


  • Gary Sannes joins S.J. Janis as a sales representative 


  • Gary Sannes becomes the owner of S.J. Janis and incorporates the company.
  • “The S.J. Janis name was well recognized in the community so I decided to retain it in lieu of using my name or creating another,” said Sannes.


  • Sannes hires the company’s first full-time Salesperson


  • Sannes hires the company’s first full-time In-House Director of Design


  • Sannes hires the company’s first  full-time Production Manager


  • We moved office to Wauwatosa


  • We moved office to Elm Grove