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Index of State of Delaware Business Licenses and Registrations

Plumbing Permitting – Residential

For residential plumbing jobs (State permitting only, not local/municipal)

The mission of the plumbing program is to carry out and enforce the Delaware plumbing code in conformance with basic plumbing principles and regulatory requirements. The program accomplishes its mission by providing for the adoption and promulgation of suitable rules and regulations for the construction of plumbing facilities where mandated. The program provides a mechanism for the issuance of permits to Delaware licensed plumbers and homeowners whenever plumbing takes place, enforces plumbing codes and regulations, handing down penalties when appropriate. This program covers plumbing installations statewide except where there are local jurisdictions. Contractors and homeowners working on plumbing projects in jurisdictions with their own plumbing programs should contact the appropriate local office or county office regarding permit information.

More Information

Department: Health and Social Services

Division: Public Health

Office: Plumbing Permit and Inspection Program


These are one-time plumbing permits, to be secured 24 hours before work starts.

Application Form

Renewal Form

N/A, these are one time Permits for Plumbing job.

Applicable Laws

Applicable Rules and Regulations


Doug Lodge can be contacted by email at and by phone at 302-744-4831.


This search covers most of the frequently requested licenses, certifications, registrations, and filings that the State of Delaware requires. However, this is not a fully exhaustive list of every possible requirement. Please consult with the appropriate state agencies to find out if there are additional requirements you must fulfill.

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