Plumber Exam Prep / Delaware
Plumber Exam — DE
Journeyman Plumber Exam in Delaware
Complete breakdown of the journeyman plumber licensing process in Delaware — code used, exam provider, and what to study.
Exam Details
- Licensing Body
- Delaware Division of Professional Regulation
- Exam Provider
- PSI Exams
- Code Edition
- 2018 IPC
- Passing Score
- 70%
- Question Count
- 80
- Exam Fee
- $85
- Experience Required
- 4 years
Note: Always verify current requirements with Delaware Division of Professional Regulation.
Delaware Plumber License — What to Know
Statewide journeyman plumber license required in Delaware.
Key Code Sections to Master
The International Plumbing Code (IPC) exam covers water supply, drainage, venting, fixtures, water heaters, storm drainage, and special piping. Focus on the table for pipe sizing (Table 604.4 for water supply, Table 710.1 for drainage fixture units), minimum fixture requirements by occupancy type, and venting rules. Drainage fixture units (DFUs) are frequently tested via calculation questions.
Start on the web
Practice for the Delaware plumber exam
Use this state guide to understand the license requirements, then drill IPC and UPC practice in your browser with pipe-sizing tools. Web access and native app purchases are separate.