We’re Sussex, Wisconsin’s Certified Pella Windows Contractor

At Siding Unlimited, we take pride in being the premier destination for Pella windows in the Sussex, Wisconsin, area. In fact, we are Wisconsin’s only Platinum Elite Pella Certified Contractor. That means we will bring the blend of quality, beauty, innovation Pella is known for right to your home. Our commitment to excellence extends across a comprehensive range of Pella windows, whether you’re interested in vinyl, wood, or fiberglass options.

Why Pella Windows?

Pella is the name known and trusted for long-lasting performance, even in Wisconsin’s harsh weather. Thanks to advanced protection, Pella windows are durable against everything from moisture and decay to stains, mold and mildew, and termite damage.

Pella windows are also energy efficient, built with insulated master frames, and engineered with warm-edge spacers. As a result, you can say goodbye to leaky windows, temperatures fluctuations, and discomfort in your home.

With Siding Unlimited, the area’s top Pella windows dealer, we offer Pella replacement windows in many configurations, exterior colors, interior colors, and with decorative glass options. During the selection process, you can also choose from:

  • Vinyl windows – Designed with dual- and triple-paned glass, argon gas fills, and high R-value foam insulation, our vinyl Pella windows are engineered to withstand Wisconsin’s diverse climate.
  • Fiberglass windows – For strength and efficiency, our Pella fiberglass windows provide an airtight seal, better maintain consistent indoor temperatures, and offer durability without compromising on style.
  • Wood windows – Experience the timeless beauty of wood with our Pella wood windows. Crafted with the detailing of fine furniture, these windows even offer advanced protection against rot, termites, and moisture.

Ready to Explore Your Pella Window Options?

Contact us today for a free consultation and learn more about why Pella windows are the smart choice for homeowners in the Sussex, WI, area. When you partner with Siding Unlimited, you can also expect a simple, stress-free experience, a weather-tight fit, and dependable operation for years to come.

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 The entire experience was outstanding and exceeded our expectations. Lou Davis provided thoughtful advice as we navigated selections on windows, siding, and front door. Crew cleaned up daily. Top notch from start to finish. 
 Hands down the best company we have ever done business with - professional, knowledgeable and very accommodating. We had new siding installed and other work. Wish we had come across this company years ago! Five stars aren't enough. 
 The team at Siding Unlimited is very professional, detail oriented, and extremely knowledgeable about their products and installation. 
 Our house looks wonderful and the guys were fantastic. 

Looking for ways to make your home improvement project more affordable? We offer a number of financing options for qualified customers.

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Company Info
Siding Unlimited LLC


665 Larry Ct.
Waukesha, WI 53186
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2018 S Stoughton Rd
Madison, WI 53716
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Now Open! Discover our new must-see Madison showroom. Now serving the entire Greater Madison area, located at 2018 S Stoughton Rd, Madison, WI. Open 9am-5pm Monday through Friday and 9am-12pm on Saturdays.