Delaware Plumbing License Renewal
The license plumbers and plumbing contractors need to perform plumbing work.
- Renewal cycle
- Commonly 1-3 years (varies by state)
Last reviewed 2026-05-24. Fees and dates change - confirm with the issuing authority before relying on them.
Who needs a plumbing license?
Plumbers and plumbing contractors generally need a license, often tiered (apprentice, journeyman, master). Most states license plumbing at the state level.
A plumbing contracting business may need a separate company registration in addition to the individual license.
Delaware specifics
Delaware licenses master plumbers through the Board of Plumbing, Heating, Ventilation, Air Conditioning and Refrigeration Examiners; apply and renew through DELPROS.
Why a lapse hurts
Working on an expired plumbing license risks fines, failed inspections, and liability, and permits typically require an active license.
Letting it lapse can pull you off jobs and may require re-examination or reinstatement fees.
How renewal works
Renew with your state plumbing or contractor board before expiration, pay the fee, and complete any required continuing education.
Cycles are commonly one to three years; keep your CE records for renewal.
Never miss this renewal again
Add your plumbing license and every other permit to Renovo and get automatic reminders before each one expires. Free for one business.
Frequently asked questions
How often do I renew a plumbing license in Delaware?
Plumbing licenses commonly renew every one to three years, sometimes annually, often with continuing education. Check the Delaware board for the exact cycle.
Do I need continuing education to renew in Delaware?
Many states require continuing-education hours to renew a plumbing license. Confirm the requirement for Delaware and keep your certificates on file.
Is the plumbing license tied to me or my company?
Individual plumber licenses are tied to the person; a plumbing contracting business may also need a separate registration, each renewing on its own schedule.
How can I keep track of all my Delaware contracting business license renewals?
List every license and permit with its expiration date in one place and set reminders ahead of each deadline. Renovo is a free tool for this: add your plumbing license and other documents, and it sends automatic reminders before they expire.
Sources
This page is general information, not legal advice. License rules, fees, and deadlines vary by state and locality and change over time - always confirm current requirements with the issuing authority before relying on them.