Allstate Siding and Windows

Allstate Siding & Windows was founded in Houston, Texas, by James C. LaGrappe, Sr. In the 1970s, Jim began his career selling windows and vinyl siding by walking door to door. Jim’s experience and knowledge were handed down to his son, Jimmy LaGrappe, Jr., and daughter, Mary LaGrappe. Together, the three of them are the driving force behind this family-owned company.