Lang Home Exteriors is a Christian owned company serving the South West suburbs of the Chicago metro area. It is our pleasure to provide you with the best products and service possible. Whether you are a homeowner or a contractor,we can meet your needs for residential roofing, siding, fascia,soffit and gutters. We also provide other services such as maintenance contracts, gutter cleaning, installation of power fans, skylights and other ventilation products. No repair is too small or too big for us to handle. For new construction, we are proud to announce our 'Exact BackProgram'. This program provides installation pricing on all jobs.You pay for only the material needed, by the square or linear foot and the labor to install that exact amount. This program protects the builder from paying for overages estimated by the.