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Plumbing License Delaware: How to Become a Plumbing Contractor in DE

To become a plumbing contractor in Delaware, you will need to obtain a plumbing license from the Delaware Division of Professional Regulation. Here are the steps you need to follow:

  1. Meet the eligibility requirements: To become a licensed plumber in Delaware, you must be at least 18 years old and have a high school diploma or equivalent.
  2. Complete an apprenticeship program: You will need to complete a state-approved plumbing apprenticeship program that typically takes four to five years to complete. During your apprenticeship, you will work under the supervision of a licensed plumber and gain hands-on experience.
  3. Pass the plumbing exam: You must pass the plumbing exam administered by the Delaware Division of Professional Regulation. The exam will test your knowledge of plumbing codes, safety regulations, and installation and repair procedures.
  4. Obtain liability insurance: You will need to obtain liability insurance before you can apply for your plumbing license.
  5. Apply for your plumbing license: Once you have met all the requirements, you can apply for your plumbing license through the Delaware Division of Professional Regulation. You will need to provide proof of your apprenticeship completion, pass the plumbing exam, and show proof of liability insurance.
  6. Maintain your license: You will need to renew your plumbing license every two years and complete continuing education requirements to stay up-to-date on the latest plumbing codes and safety regulations.

Note that the specific requirements for becoming a plumbing contractor in Delaware may vary, so it’s essential to check with the Delaware Division of Professional Regulation for the most up-to-date information.

Requirement to obtain Plumbing License in DE

o obtain a plumbing license in Delaware, you must meet the following requirements:

  1. Education: You must have a high school diploma or equivalent.
  2. Apprenticeship: You must complete a state-approved plumbing apprenticeship program that typically takes four to five years to complete. During your apprenticeship, you will work under the supervision of a licensed plumber and gain hands-on experience.
  3. Plumbing Exam: You must pass the plumbing exam administered by the Delaware Division of Professional Regulation. The exam will test your knowledge of plumbing codes, safety regulations, and installation and repair procedures.
  4. Insurance: You will need to obtain liability insurance before you can apply for your plumbing license.
  5. Age: You must be at least 18 years old.
  6. Criminal Background Check: You must undergo a criminal background check.

Once you have met all the requirements, you can apply for your plumbing license through the Delaware Division of Professional Regulation. You will need to provide proof of your apprenticeship completion, pass the plumbing exam, and show proof of liability insurance.

Types of Plumbing Licenses in DE

In Delaware, there are two types of plumbing licenses:

  1. Journeyman Plumbing License: A journeyman plumber is licensed to work on plumbing projects but cannot work as a plumbing contractor. To obtain a journeyman plumbing license in Delaware, you must complete a state-approved plumbing apprenticeship program and pass the plumbing exam.
  2. Master Plumbing License: A master plumber is licensed to work as a plumbing contractor and can hire other plumbers to work under them. To obtain a master plumbing license in Delaware, you must have a journeyman plumbing license, complete an additional year of apprenticeship, and pass a separate master plumbing exam.

Both journeyman and master plumbers in Delaware are required to renew their licenses every two years and complete continuing education requirements to stay up-to-date on the latest plumbing codes and safety regulations.

Benefits of becoming a DE Plumbing Professional

Becoming a licensed plumbing professional in Delaware can provide a range of benefits, including:

  1. Job Security: Plumbing is an essential service, and licensed plumbers are always in demand. As a licensed plumbing professional, you can expect to have job security and steady work.
  2. Good Income: Plumbing professionals in Delaware typically earn a good income, with the average annual wage for plumbers and pipefitters in the state being around $61,000.
  3. Flexibility: Plumbing professionals can work in a variety of settings, including residential, commercial, and industrial. This provides a level of flexibility in terms of where and how you work.
  4. Career Growth: Becoming a licensed plumbing professional in Delaware opens up opportunities for career growth, such as becoming a master plumber and starting your own plumbing business.
  5. Job Satisfaction: Plumbing can be a rewarding career as it involves problem-solving and helping people. As a plumbing professional, you can take pride in knowing that you are making a difference in people’s lives by providing essential services that keep their homes and businesses running smoothly.

Overall, becoming a licensed plumbing professional in Delaware can provide a stable, rewarding career with plenty of opportunities for growth and job satisfaction.

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Mean Salary for a Plumbing Technician in DE

According to the U.S. Bureau of Labor Statistics, the mean annual wage for plumbers, pipefitters, and steamfitters in Delaware as of May 2020 was $61,070. This figure is slightly higher than the national average for the same occupation, which was $60,160.

It’s important to note that the actual salary for a plumbing technician in Delaware can vary depending on a range of factors, including years of experience, specific job duties, and the location of the employer. Additionally, licensed plumbing contractors who operate their own businesses may earn more than plumbing technicians who work for others.

Cost to become a Plumbing Technician in DE

The cost to become a plumbing technician in Delaware can vary depending on several factors, including the cost of the required education and training, the cost of the licensing exam, and any additional fees associated with obtaining a plumbing license. Here are some estimates of the costs involved:

  1. Education and Training: To become a plumbing technician in Delaware, you will need to complete a state-approved plumbing apprenticeship program. The cost of such programs can vary, but it is often paid by the employer or union sponsoring the apprenticeship. However, if you are not sponsored, the cost of tuition and books for a plumbing program at a trade school or community college can range from $1,000 to $15,000 per year.
  2. Licensing Exam: The fee for the plumbing licensing exam in Delaware is $100. You may need to pay for additional study materials or exam preparation courses to pass the exam.
  3. Insurance: You will need to obtain liability insurance before you can apply for your plumbing license. The cost of liability insurance can vary depending on the amount of coverage you need.
  4. Other fees: There may be additional fees associated with obtaining a plumbing license, such as application fees, renewal fees, and continuing education fees.

Overall, the cost to become a plumbing technician in Delaware can range from a few thousand dollars to tens of thousands of dollars, depending on the specific training and licensing requirements and any additional fees associated with obtaining a plumbing license.

How long does it take to become a Plumbing technician in DE?

The time it takes to become a plumbing technician in Delaware can vary depending on several factors, including the length of the required education and training, the time it takes to pass the licensing exam, and the time it takes to complete any additional requirements. Generally, it takes several years to become a licensed plumbing technician in Delaware. Here is an overview of the typical timeline:

  1. Education and Training: To become a plumbing technician in Delaware, you will need to complete a state-approved plumbing apprenticeship program, which typically takes four to five years to complete. During your apprenticeship, you will work under the supervision of a licensed plumber and gain hands-on experience.
  2. Licensing Exam: After completing your apprenticeship, you will need to pass the plumbing exam administered by the Delaware Division of Professional Regulation. The time it takes to prepare for and pass the exam can vary, but typically takes several months to a year.
  3. Insurance: You will need to obtain liability insurance before you can apply for your plumbing license. The time it takes to obtain insurance can vary, but it usually takes a few weeks to a month.
  4. Other requirements: Depending on the specific requirements, additional training or education may be required to become a licensed plumbing technician in Delaware.

Overall, it can take several years to become a licensed plumbing technician in Delaware, but the exact timeline can vary depending on the specific training and licensing requirements.

DE Plumbing Training Programs and Schools

There are several plumbing training programs and schools in Delaware that offer the required education and training to become a licensed plumbing technician. Here are some options to consider:

  1. Delaware Technical Community College: Delaware Tech offers a plumbing apprenticeship program that is approved by the Delaware Division of Professional Regulation. The program includes on-the-job training as well as classroom instruction and can be completed in four years.
  2. Local Unions: Plumbers and Pipefitters Local 74, as well as other local unions, offer plumbing apprenticeship programs that are approved by the Delaware Division of Professional Regulation. These programs include on-the-job training and classroom instruction and can take four to five years to complete.
  3. ABC Delaware Apprenticeship & Training Program: The Associated Builders and Contractors of Delaware offers a plumbing apprenticeship program that includes classroom instruction and on-the-job training. The program is approved by the Delaware Division of Professional Regulation and can be completed in four years.
  4. Plumbing Contractor Training Center: This training center offers plumbing apprenticeship and journeyman training programs that are approved by the Delaware Division of Professional Regulation. The programs include classroom instruction and on-the-job training.

Overall, there are several plumbing training programs and schools in Delaware that can help you meet the education and training requirements to become a licensed plumbing technician. It’s important to choose a program that is approved by the Delaware Division of Professional Regulation to ensure that you meet all of the necessary licensing requirements.

DE Plumbing Licensing Exam Details and EPA Certification

Here are some details about the plumbing licensing exam in Delaware and EPA certification:

  1. Plumbing Licensing Exam: The plumbing licensing exam in Delaware is administered by the Delaware Division of Professional Regulation. The exam consists of two parts: a written exam and a practical exam. The written exam covers plumbing codes, safety regulations, and installation and repair procedures. The practical exam assesses your ability to perform plumbing tasks in a simulated environment. The cost of the exam is $100.
  2. EPA Certification: EPA certification is not required to become a licensed plumbing technician in Delaware, but it is often recommended. EPA certification is required to handle and work on refrigeration and air conditioning systems, which may be part of a plumbing technician’s job duties. The certification can be obtained by passing an exam that covers topics such as refrigerant handling, regulations, and safety practices.

It’s important to note that the specific requirements for the plumbing licensing exam and EPA certification may vary, so it’s essential to check with the Delaware Division of Professional Regulation and the EPA for the most up-to-date information. Additionally, continuing education requirements must be met to maintain your plumbing license and EPA certification.

Core Exam details in DE for Plumbing Professional


In Delaware, the core exam for plumbing professionals is a written exam that covers plumbing codes, safety regulations, and installation and repair procedures. Here are some details about the core exam:

  1. Exam Content: The core exam covers topics such as plumbing codes, safety regulations, water supply systems, drainage systems, venting systems, plumbing fixtures, and appliances. The exam is designed to assess your knowledge of plumbing principles and practices.
  2. Exam Format: The core exam is a computer-based test that consists of multiple-choice questions. The exam typically takes several hours to complete, and you must achieve a passing score to obtain your plumbing license.
  3. Exam Preparation: To prepare for the core exam, you can use study materials provided by the Delaware Division of Professional Regulation or other approved sources. You may also consider enrolling in a plumbing exam preparation course to help you prepare for the exam.
  4. Exam Fee: The fee for the core exam in Delaware is $100. You will need to pay this fee when you submit your application for a plumbing license.

Overall, the core exam for plumbing professionals in Delaware is an important step in obtaining your plumbing license. It’s essential to prepare thoroughly for the exam to ensure that you have the knowledge and skills needed to work safely and effectively as a plumbing professional.

Who issues Plumbing Licenses in DE

Plumbing licenses in Delaware are issued by the Delaware Division of Professional Regulation, which is a state agency responsible for regulating various professions and occupations, including plumbing. The Division oversees the licensing and regulation of plumbers, apprentices, and plumbing contractors, ensuring that they meet the necessary education, training, and licensing requirements to work in the state of Delaware. The Division also provides resources and support to plumbing professionals, including information about licensing requirements, continuing education, and professional standards. If you are interested in obtaining a plumbing license in Delaware, you will need to apply through the Delaware Division of Professional Regulation and meet all of the necessary requirements to obtain your license.

Does my DE registration allow me to work in any other state?

No, your Delaware plumbing registration does not allow you to work as a plumber in any other state. Each state has its own plumbing licensing requirements, and a plumbing license issued in one state is not automatically recognized in another state. If you want to work as a plumber in another state, you will need to meet that state’s licensing requirements, which may include completing additional education or training and passing a licensing exam. Some states have reciprocity agreements with other states, which means that they may recognize a plumbing license issued in another state, but these agreements can be limited and may require additional steps to obtain a license in the new state. It’s important to check with the licensing board in each state where you want to work to determine the specific requirements for obtaining a plumbing license.

National Plumbing Certifications

There are several national plumbing certifications that can demonstrate your expertise and knowledge as a plumbing professional. Here are some of the most recognized certifications:

  1. Certified Plumbing Design (CPD): The CPD certification, offered by the American Society of Plumbing Engineers (ASPE), demonstrates proficiency in plumbing system design.
  2. Journeyman Plumber Certification: The Journeyman Plumber Certification, offered by the National Inspection Testing Certification (NITC), is a standardized certification that verifies a plumber’s knowledge and expertise in the field.
  3. Master Plumber Certification: The Master Plumber Certification, also offered by NITC, is designed for experienced plumbers who have completed advanced training and demonstrated a high level of knowledge and skill.
  4. Green Plumber Certification: The Green Plumber Certification, offered by the Green Plumbers USA, demonstrates knowledge and proficiency in environmentally sustainable plumbing practices.
  5. Backflow Prevention Certification: Backflow Prevention Certification, offered by the American Backflow Prevention Association (ABPA), verifies a plumber’s knowledge and ability to install and test backflow prevention devices.

Overall, obtaining national plumbing certifications can demonstrate your expertise, commitment to your profession, and dedication to staying up-to-date on the latest plumbing technologies and practices. These certifications can also enhance your credibility with clients and employers and help you stand out in a competitive job market.

Continuing Education and Renewal of DE License for Plumbing

In Delaware, licensed plumbers are required to complete continuing education (CE) courses and renew their licenses every two years. Here are some details about continuing education and license renewal requirements:

  1. Continuing Education: Licensed plumbers in Delaware are required to complete a minimum of 8 hours of continuing education (CE) during each two-year renewal period. CE courses must be approved by the Delaware Division of Professional Regulation and cover topics related to plumbing codes, safety regulations, and installation and repair procedures.
  2. License Renewal: Plumbing licenses in Delaware must be renewed every two years. To renew your license, you must complete the required CE courses, submit proof of liability insurance, and pay the renewal fee. Licenses that are not renewed by the expiration date will be considered lapsed, and the plumber will need to apply for reinstatement.
  3. Late Renewal: If you fail to renew your plumbing license by the expiration date, you may still renew your license within 60 days of the expiration date by paying a late renewal fee in addition to the regular renewal fee. If you do not renew your license within 60 days, your license will lapse, and you will need to apply for reinstatement.

Overall, it’s essential to stay up-to-date on continuing education requirements and renew your plumbing license on time to avoid any lapses in your license. Failure to renew your license or complete the required CE courses can result in disciplinary action, including fines or suspension of your license.

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