Signature Impact Windows & Doors Offers Residential & Commercial Products With Professional Installation & Permit Expediting. Our Team With Over 15 years of experience combined; Signature Impact Windows & Doors offers the finest quality of products & service in the industry. Signature Impact windows services the entire state of Florida from residential to commercial properties. No task is ever too big or too small. We take pride in providing incomparable service & efficiency with our highly trained team of professional installers. At Signature Impact windows & Doors we know how important your home is to you & we are committed in delivering customer satisfaction every time.