Sigma Exteriors is the premier roofing, gutters, siding, and window replacement contractor in the Wisconsin Area. We are a locally owned and operated

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, neve...

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."