When comparing fiberglass pool installers in Arizona, establish who will supply the shell and who will carry out the installation at your property. Ask for the proposed pool dimensions, access requirements and the work included around the shell. Excavation, equipment, connections, surrounding surfaces and cleanup should be addressed in the written scope.
Discuss the planned position and how the pool will relate to existing buildings and outdoor spaces. Ask which parts of the project are handled by the installer and which need another trade. Review the shell manufacturer's warranty and the installer's workmanship terms separately, including who will respond if a problem appears after the pool is handed over.