Sigma Exteriors
- Company Overview: 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. This is why WTMJ News Radio chose us to be their My Home Improvement Program’s Window Replacement, Siding, and Roofing Expert. Additionally, we are also the featured experts on Milwaukee’s Builders Showcase.
