Mechanical Permit Requirements

Required Mechanical Permits

A permit is required for any installation or alterations to heating, ventilation, air-conditioning, hood systems, boilers, wood stoves, or other miscellaneous heat-producing appliances.

Work Exempt from Permit

  • Portable heating appliance, ventilation equipment, cooling unit, or evaporative cooler
  • Steam, hot or chilled water piping within any heating or cooling equipment regulated by this code
  • Replacement of any part that does not alter its approval or make it unsafe
  • Self-contained refrigeration system containing 10 pounds or less of refrigerant and actuated by motors of 1 horsepower or less.