To receive a permit to install plumbing in Hamilton County (excluding City of Cincinnati and St. Bernard), residential plumbing installers must be bonded and registered with Hamilton County Public Health. In some cases, homeowners may be able to obtain the permit and complete the work themselves.

• Contractors
  Residential plumbing permit information for contractors
• Homeowners
  In some cases, homeowners may be able to obtain residential plumbing permits and complete the work themselves