Simply the Best Window Company in Greater Wisconsin
Experience a hassle-free, start-to-finish home upgrade with industry-leading products and unmatched customer care.
A Better Way to Replace Your Windows
When there are so many window companies out there, why does Renewal by Andersen® of Greater Wisconsin deserve your business? For starters, we offer an experience that no other company can match: one-company accountability.
Backed by years of innovation, we don’t just sell replacement windows. We custom-design, manufacture, install, and warrant every single window and door. From your initial, no-pressure design consultation to the moment you step back and admire your home’s flawless new look, we handle every detail. Finding the right replacement windows can be daunting, but with our local team of experts, your home improvement journey is guaranteed to be seamless and stress-free.
Signature Service: We Treat Your Home Like Our Own
A great window is only as good as the installer behind it. Many companies are happy to sell you windows, only to hand your project off to unknown subcontractors. That never happens at Renewal by Andersen.
We exclusively use factory-trained Certified Master Installers who are highly experienced in fitting windows of all shapes and sizes. They ensure a meticulous, weather-tight installation tailored perfectly to your home. Beyond their technical precision, our installers respect your space—taking precautions to protect your home from damage and debris, and cleaning up so thoroughly that the only sign they were there is your beautiful new windows.
Fibrex® Material: The Strength of Wood, the Low Maintenance of Vinyl
For decades, homeowners had to choose between the beauty of wood (which eventually rots and requires constant painting) or the convenience of vinyl (which is prone to warping and bowing). We refused to settle.
After 30 years of research, Renewal by Andersen perfected Fibrex®—a revolutionary composite material made by fusing 40% reclaimed wood fiber with 60% proprietary polymer. Fibrex is twice as strong as vinyl, allowing us to build narrower frames that give you more glass area and a better view. It provides the upscale look of wood but is guaranteed never to rot, decay, blister, or peel.
Engineered for Extreme Wisconsin Weather
In Wisconsin, our windows face extreme temperature swings—from sub-zero winter freezes to humid summer highs. Most window materials expand and contract wildly during these shifts, breaking seals and letting in drafts.
Fibrex® material has an extremely low thermal expansion rate, meaning it stays stable and keeps the weather seal tight year-round. When combined with our high-performance, multi-pane glass packages and Low-E coatings, our windows block thermal transfer almost 700 times better than aluminum frames. The result? No icy drafts, no fogged-up glass, and a more comfortable home with lower heating and cooling bills.
Peace of Mind with a Warranty You Can Trust
Because we own the entire process from manufacturing to installation, there are no loopholes. If a problem ever arises, you don’t have to deal with a manufacturer blaming the installer—you just have one number to call.
We believe in our products so much that we back them with one of the strongest warranties in the industry. You receive 20-year coverage on glass and 10-year coverage on Fibrex® material and components. Furthermore, our limited warranty is fully transferable. If you ever sell your home, the warranty transfers to the new owner, adding tangible resale value to your property.
Trusted by Your Neighbors. Recognized by the Industry.
Don’t just take our word for it—see what homeowners across Wisconsin have to say about their Renewal by Andersen experience.
RBA did an excellent job and fast! 5 windows in 3 hours from the time they arrived, did the work & cleaned up. It was as if they had never been there, other than having these excellent replacement windows in place!
— Dave F.
Absolutely great experience. The installation team was very professional.
— Dan W.
Everyone was very professional and knowledgeable. They answered all my questions and the end result on the house is great. In 3 days they replaced an old bay window, french doors, and our old front door.
— Matt K.
Awards & Certifications
J.D. Power Award — Highest in Customer Satisfaction
ENERGY STAR® Partner of the Year
Green Diamond Signature Service Award
Ready to Bring Your Remodeling Dreams to Life?
Don’t settle for anything less than the best for your home. Join thousands of satisfied homeowners who have chosen Renewal by Andersen for a superior window and door replacement experience.
