Most larger water heater repair & installation jobs in Chandler need a permit and inspection; repairs often do not. Here is what to check before work starts.
Check the official Chandler permit portal: https://www.chandleraz.gov/departments/development-services/building-division. Replacements, re-piping and new installs typically need a permit; simple repairs usually do not. Ask the contractor in writing who will handle filing and inspection, and whether those fees are included.
https://www.chandleraz.gov/departments/development-services/building-division — apply online, check requirements, book inspections.
Licence and certification requirements depend on the work and jurisdiction. Ask which requirement applies, then verify the provider at the official lookup before work begins.
Ocotillo, Sun Groves and Andersen Springs: Serving Chandler and the wider Maricopa County area. Local housing mix shapes water heater repair & installation specs here. The waterheater chandler listing tracks local availability.