How do i contact the city of mesa az? See listing below for specific department/pision links contact information. For general questions, please contact the City at [email protected] The below listing is a quick reference of department/pision contact information.Why choose mesa home systems? Mesa Home Systems specializes in complete home system integration, or combining various electronic systems together into one system for seamless home control.What is mesa generator? Mesa is a leading power solutions company specializing in the manufacturing, sales, leasing and operations of natural gas and liquid propane-powered mobile and stationary generator sets.Do i need an alarm permit in mesa az? Alarm Ordinance 6-15 requires alarm permits for all alarm users within city limits. If you do not know if you are within the City of Mesa or in a Maricopa County island, please visit the online address search map and search for your address. The map will notify you if you are within a Maricopa County island.