Master Plumber License in Delaware
Quick Answer
To become a Master Plumber in Delaware, pass the state plumbing exam. Any criminal conviction prohibited — among the strictest nationally. No CE for renewal. Temporary licenses for military/spouses.
- Exam
- State plumbing exam
- Timeline
- 4-5 years apprenticeship + licensing
- Background Check
- Required
- Renewal
- Every Biennial
Requirements
Master Plumber license in Delaware
Master Plumber Salary in Delaware
Entry Level
$40,630
Median
$64,300
Experienced
$86,900
Source: Bureau of Labor Statistics. Salary data is for informational purposes only.
How to Get Licensed
Step-by-step roadmap to becoming a licensed Master Plumber in Delaware.
- 1
Complete Education Requirements
No educational requirements
- 2
Submit Background Check
Any conviction is prohibited
- 3
Pass the Required Exam
State exam required — State plumbing exam
- 4
Submit Your Application
File your application with the licensing agency.
- 5
Receive Your License
Processing typically takes 4-5 years apprenticeship + licensing.
Master Plumber Licensing in Delaware: What to Know
Delaware licenses Master Plumbers through the Board of Plumbing/Heating/Ventilation/Air Conditioning and Refrigeration under the Division of Professional Regulation. No CE required for renewal. A state exam is required. Any conviction is prohibited — one of the strictest criminal background requirements nationally for plumbers. Military-friendly: temporary licenses available for military and spouses. Delaware's combined PHVACR board regulates plumbers alongside HVAC professionals. The board also issues restricted HVACR licenses for specialty practice.
Frequently Asked Questions
- How long does it take to get a Master Plumber license in Delaware?
- The process typically takes 4-5 years apprenticeship + licensing, depending on education completion and exam scheduling.
- What exam do I need for a Master Plumber license in Delaware?
- You need to pass the State plumbing exam. State exam required
Considering another state?
Compare Master Plumber requirements across states.
View all states →Data from CareerOneStop (DOLETA/DEED). Last updated: February 14, 2026.