How to Get a Plumber License in Delaware
Last updated: March 1, 2026
Delaware is a small but strategic market with no sales tax and proximity to major East Coast metros, making it an excellent place to start a career as a plumber. Whether you're looking for a career change or entering the workforce for the first time, obtaining your plumber license in Delaware is a structured process overseen by the Delaware Division of Professional Regulation — Board of Plumbing, Heating, Ventilation, Air Conditioning and Refrigeration Examiners.
Delaware requires just 0 hours of pre-license education — one of the lowest requirements in the nation. The total cost is relatively affordable at $193 to $450, including education, application, and exam fees. Most aspiring plumbers complete the entire process in 4-8 weeks, depending on how quickly they move through the coursework and exam preparation.
Delaware Plumber License Requirements
| Requirement | Details |
|---|---|
| Minimum Age | 18 years old |
| Pre-License Education | 0 hours |
| Degree Required | No |
| Exam Required | Yes — Delaware Journeyman Plumber Exam |
| Passing Score | 70% |
| Background Check | Yes |
| Broker Sponsorship | Not required |
| Application Fee | $59 |
| Exam Fee | $75 |
| Governing Body | Delaware Division of Professional Regulation — Board of Plumbing, Heating, Ventilation, Air Conditioning and Refrigeration Examiners |
| License Reciprocity | None |
Reciprocity: Delaware may grant reciprocity to plumbers licensed in states with equivalent requirements.
Steps to Get Your Plumber License in Delaware
- 1
Complete Apprenticeship or Experience Requirement
Must complete 4 years (8,000 hours) of apprenticeship under a licensed master plumber. Most states require 4+ years of on-the-job training under a licensed plumber.
Time: 4-5 years Cost: $100 - 2
Submit Your License Application
Apply through the Delaware Division of Professional Regulation — Board of Plumbing, Heating, Ventilation, Air Conditioning and Refrigeration Examiners. You'll need documentation of your work experience, and the application fee is $59.
Time: 2-6 weeks for processing Cost: $59 - 3
Pass the Delaware Journeyman Plumber Exam
Schedule and pass the plumbing licensing exam administered by PSI. You must score at least 70% to pass.
Time: 2-4 weeks to prepare and take Cost: $75 - 4
Obtain Insurance if Required
Some states and employers require liability insurance before you begin working independently. Check the Delaware Division of Professional Regulation — Board of Plumbing, Heating, Ventilation, Air Conditioning and Refrigeration Examiners requirements.
Time: 1-2 weeks - 5
Receive Your Plumber License
Once you've passed the exam and met all requirements, the Delaware Division of Professional Regulation — Board of Plumbing, Heating, Ventilation, Air Conditioning and Refrigeration Examiners will issue your license. You can then legally perform plumbing work in Delaware.
Time: 1-4 weeks
Key Things to Know
- Education requirement: Must complete 4 years (8,000 hours) of apprenticeship under a licensed master plumber.. Many providers offer online options, giving you flexibility to study on your own schedule.
- The licensing exam: The Delaware Journeyman Plumber Exam is administered by PSI. You'll need to score at least 70% to pass. Study materials and practice exams are available from most education providers.
- Already licensed in another state? Delaware may grant reciprocity to plumbers licensed in states with equivalent requirements.
- Ongoing requirements: Once licensed, you'll need 0 hours of continuing education every 2 years. No continuing education required for renewal.
How Much Does a Plumber License Cost in Delaware?
| Cost Item | Estimated Range |
|---|---|
| Pre-License Education | $300 - $700 |
| Application Fee | $59 |
| Exam Fee | $75 |
| Total Estimated Cost | $193 - $450 |
License Renewal
- Renewal Period: Every 2 years
- Continuing Education: 0 hours
- CE Details: No continuing education required for renewal
- Renewal Fee: $59
Tips for Success
- Choose your education provider carefully: Compare prices, format (online vs. in-person), and reviews. Some providers offer exam prep materials bundled with the course, which can save you money. Check the Delaware Division of Professional Regulation — Board of Plumbing, Heating, Ventilation, Air Conditioning and Refrigeration Examiners website for a list of approved providers.
- Don't rush the exam: With only 0 hours required, you can complete the education portion quickly — some providers offer accelerated programs that finish in 2-3 weeks. Use practice exams to identify weak areas before scheduling your test date.
- Start with an apprenticeship: Most states require 4-5 years of on-the-job training under a licensed plumber. Union apprenticeships (UA) and non-union programs both offer structured paths with paid training.
- Know your plumbing codes: The licensing exam tests your knowledge of plumbing codes (Uniform or International Plumbing Code). Get the relevant code book for your state and take practice exams before scheduling your test.
Frequently Asked Questions
How long does it take to get a plumber license in Delaware?
Most people complete the process in 2-4 weeks total. The pre-license education (0 hours) takes the longest. After completing education, the exam and application process typically adds 2-6 weeks.
How much does it cost to get a plumber license in Delaware?
The total cost ranges from $193 to $450, including pre-license education, the application fee ($59), and the exam fee ($75).
Can I get a Delaware plumber license with a criminal record?
The Delaware Division of Professional Regulation — Board of Plumbing, Heating, Ventilation, Air Conditioning and Refrigeration Examiners evaluates criminal history on a case-by-case basis. Having a criminal record does not automatically disqualify you, but certain offenses may affect your eligibility. Contact the Delaware Division of Professional Regulation — Board of Plumbing, Heating, Ventilation, Air Conditioning and Refrigeration Examiners for guidance before applying.
Do I need a college degree to become a plumber in Delaware?
No. Delaware does not require a college degree. You only need to complete the 0 hours of approved pre-license courses.
Can I take the pre-license courses online in Delaware?
Many approved education providers offer pre-license courses online, allowing you to study at your own pace. Check the Delaware Division of Professional Regulation — Board of Plumbing, Heating, Ventilation, Air Conditioning and Refrigeration Examiners website for a list of approved providers.