The George D. Alan Company, also known as GDA, is a specialty construction firm that provides waterproofing, caulking and moisture protection services to general contractors. The company has been serving customers since 1992. It handles the installation of water repellent coating, vapor barrier, insulation and wall drainage composite moisture protection systems. The George D. Alan Company specializes in the design and installation of joint sealants, caulks, urethanes, acrylics, butyl rubber, pre-compressed foam and expansion joint assemblies. Its projects include the American Paint Horse Association, Childrens Medical Center Parking Garage, Albuquerque AAA Isotopes Ballpark, Edgemere Senior Living Community, International Balloon Museum and Oklahoma City Federal Complex.