At S.E. Wisconsin Sunrooms, we are proud to be the premiere provider of Janesville sunroom additions. As a BBB-accredited business and member of the National Association of the Remodelling Industry, our reputation speaks for itself. Having been serving the area for over 40 years, our team has the experience and skills necessary to install your new sunroom.

Believing that your 3 season rooms and patio enclosures should be as durable as they are beautiful, we work with the most innovative brands to bring you quality products made from high-performing materials. Our Janesville Sunrooms are long-lasting, giving you peace of mind in knowing that your outdoor space will be enjoyed for decades to come.

Janesville Sunroom Builder

When you hire S.E. Wisconsin Sunrooms, we work with you to design your new addition from the ground up. Our customers can choose from a wide selection of distinct styles and options, creating custom sunrooms that won’t be replicated. Whether you’re looking for an elegant look or a modern style, we have the options your home needs. Mix and match the following features to create your ideal four seasons room:

  • Lighting Accents
  • Ceiling Fans
  • Window Treatments
  • Phone/Internet Connections
  • Opaque Wall Sections
  • “Doggy Door” Panels
  • Electrical Outlets
  • HVAC Systems
  • And More!

Every sunroom we install is expertly engineered and built with the utmost care to ensure a lasting architectural addition. In as little as a few weeks, we will install your welcoming new room, instantly elevating the value of your home and affording you a new place to unwind.

If you’ve always dreamt of enjoying the natural light of your very own sunroom, give us a call to learn more about S.E. Wisconsin. Our friendly representatives would be happy to provide you with more information and answer any questions you might have. You can also fill out our online form to schedule your free design consultation today!

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Project Portfolio

Serving customers throughout Wisconsin. Check out our past projects.

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Why choose S.E. Wisconsin Sunrooms

At S.E. Wisconsin Sunrooms, we don’t just want to provide you with a sunroom that brings you years of happiness; we want to treat you to an experience unlike any you’ve ever had.


Having your home under construction for weeks can be extremely distracting to your daily routine, so we make a point to finish your project in a matter of days and ready for years of enjoyment.


We go above and beyond to ensure our clients are happy with their purchases, working with them every step of the way to craft their sunrooms down to the very last specified detail.


We’ll outfit your sunroom with EcoGreen frames and knee walls to maximize its insulation. We’ll also use Low-E glass that allows natural light to flow in while blocking harmful UV rays.

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