Sigma Exteriors

Sigma Exteriors

Sigma Exteriors is the premier roofing, gutters, siding, and window replacement contractor in the Wisconsin Area. We are a locally owned and operated company that has received national recognition for our unique customer-first processes and procedures

We make the process of home-improvement easy and worry-free. Our company name and logo says it all. "Sigma"in Sigma Exteriors is derived from the management philosophy called "6-Sigma". Basically, 6-Sigma is a process of constant, never-ending improvement leading to 100% Client Satisfaction.

You're probably not aware that a recent national survey found that Home-Improvement Contractors are the #1 most-complained about business in the United States!

Because of this fact, and Sigma Exteriors' dedication to achieving 100% Client Satisfaction, we have developed the most customer-friendly home-improvement experience available. Out of the hundreds of contractors in Wisconsin, we are the only ones that:

Take a consultative approach to providing you with solutions to your home-improvement needs. We respect your ability to make the right choices for your home without the need for high-pressure sales tactics. And since we represent several major home-improvement manufacturers, we're sure to have what you're looking for. Ensure quality workmanship, by providing installers that are highly trained and certified in the latest installation techniques. Shoddy workmanship is not tolerated here at Sigma Exteriors. Complete jobs quickly, minimizing the interruption to your daily routines. This is made possible by our certified and highly trained installers. Provide you with a clear and detailed estimate. We know that improper initial inspections along with vague, handwritten estimates leave you vulnerable to hidden charges. At Sigma Exteriors we conduct a thorough inspection of your home before providing you with an estimate, which details out the problem found, the work that needs to be done, the materials being used, and the related costs.