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LicenseReq

How to Become a Plumber in Delaware

Becoming a plumber in Delaware takes education, an exam and an application. Here is the exact breakdown for Delaware, sourced from the official board.

How do I become a plumber in Delaware?

To become a plumber in Delaware you must complete Approved apprenticeship or trade school program, pass the State plumbing exam (state vendor), meet the experience requirement (4,000-8,000 hours (2-4 years)), cover the fees (Application $60; license fee $130). Licensing is handled by Delaware Board of Plumbing. Confirm current rules with the official board before applying.

Source: Delaware Board of PlumbingLast updated August 7, 2026

Requirements at a glance

Pre-licensing education
Approved apprenticeship or trade school program
Exam requirements
State plumbing exam (state vendor)
Experience
4,000-8,000 hours (2-4 years)
Fees & costs
Application $60; license fee $130
Reciprocity
Limited; state exam typically required
Renewal
2-year cycle, 24 hours continuing education
Source: Delaware Board of PlumbingLast updated August 7, 2026

FAQ

What are the education requirements to become a plumber in Delaware?

Approved apprenticeship or trade school program. This is the requirement published by the state.

What exam do I take to become a plumber in Delaware?

You take the State plumbing exam (state vendor). Sign up through the approved testing vendor used by the state.

How much does a plumber license cost in Delaware?

Application $60; license fee $130. Application, education and exam fees are set by the state board and can change.

How often do I renew my plumbing license in Delaware?

2-year cycle, 24 hours continuing education.

All states for this license

Licensing rules can change. This page is a summary, not legal advice. Always confirm current requirements with the official Delaware Board of Plumbing before applying.