Welty Custom Exteriors,Inc. has been serving the area since 1937. We are locally owned and have a showroom at 300 N Bunnell St Frankfort Indiana. We offer lifetime guarantees and are fully insured. We also offer financing. We can assist you and your home improvement needs for windows, siding, roofing, doors, sunrooms and gutters. Call us for a Free Estimate. Welty Custom Exteriors is a premiere exterior construction company in Frankfort, Indiana. We understand the utter importance of durable exteriors crafted to weather the elements. Because central Indiana is prone to inclement weather, we make sure to build strong exteriors that ultimately protect your home. We utilize only the most reputable products in order to support our expert installation