If you’re working in the plumbing industry in Illinois…
Whether you’re just starting as an apprentice or you’re an experienced pro looking to launch your own business, understanding the rules around certification and licensure is crucial. Proper licensing not only keeps you compliant with the law—it also helps you build trust with customers and ensure you’re staying up to date with the ever-changing industry standards.
Types of Plumbing Licenses in Illinois
In Illinois, plumbing professionals are licensed and regulated by the Illinois Department of Public Health (IDPH). The IDPH is responsible for ensuring that all plumbing work performed in the state adheres to safety standards and established codes.
1. Apprentice Plumber License
This is your starting point in the plumbing trade. Apprentice plumbers work under the direct supervision of a licensed plumber as they learn the trade and complete required training.
Key Points:
- Open to individuals who are learning the trade.
- Must register with the IDPH.
- Cannot perform work independently.
- Must be enrolled in an approved apprentice program or sponsored by a licensed plumbing contractor.
2. Licensed Plumber (Journeyman)
Once an apprentice has fulfilled the necessary training and experience, they can apply for a plumber license. This allows them to perform plumbing work independently or as an employee without direct supervision.
Key Points:
- Requires successful completion of an apprenticeship program.
- Must pass the Illinois Plumber Licensing Exam administered by the IDPH.
- License must be renewed every year with proof of continuing education.
3. Plumbing Contractor License
Plumbing contractor licenses are for those who plan to run their own plumbing business and hire other licensed plumbers. Contractors bear the responsibility of ensuring all plumbing work completed under their license adheres to Illinois law.
Key Points:
- Must be a licensed plumber or employ one.
- Requires proof of insurance and financial responsibility.
- Must register with the IDPH as a plumbing contractor.
- Must renew license annually.
How to Get a Plumber’s License in Illinois
Whether you’re starting from square one as an apprentice or transitioning into a licensed plumber or contractor, here’s a step-by-step breakdown of how to achieve licensure in Illinois.
Apprentice License Requirements
To work legally as an apprentice, you must:
- Submit a completed IDPH Apprentice Application.
- Provide proof of enrollment in a registered apprenticeship program or sponsor’s letter.
- Pay a registration fee.
- Renew registration yearly.
Information and applications can be found on the IDPH site at: https://dph.illinois.gov/
Licensed Plumber (Journeyman) Application
After completing an apprenticeship, the next step is passing the state exam and applying for a plumbing license.
Requirements:
- Complete at least four years of apprenticeship.
- Pass the written Illinois Plumber’s Licensing Exam.
- Submit a completed exam application to IDPH.
- Pay all exam and license issuance fees.
The plumber’s exam covers:
- Illinois plumbing code.
- Safety regulations.
- Practical and theoretical knowledge of plumbing systems.
Applications for exams are typically due in January each year, with exams offered in the spring. More information is available at IDPH Plumbing Licensing
Plumbing Contractor Certification IL
If you plan to own a plumbing business, you must:
- Be a licensed plumber or employ a full-time licensed plumber.
- Submit a completed Plumbing Contractor Registration Application.
- Provide certificate of insurance (including general liability and workers’ compensation).
- Submit federal tax ID number (EIN).
- Pay registration fee.
You’ll also need to designate a responsible licensed plumber who will supervise all work performed under the business.
License Renewal and Continuing Education for Plumbers in IL
Renewing and maintaining your Illinois plumbing license is just as important as getting it in the first place. Staying current helps you remain compliant with licensing laws and ensures you’re informed on changes to plumbing codes, technology, and safety regulations.
Annual Renewal Process
All plumber licenses in Illinois are valid for one year and must be renewed annually, generally by April 30.
To renew, you must:
- Complete any required continuing education (CE) hours.
- Submit a renewal application via the IDPH online portal or by mail.
- Pay the renewal fee.
Continuing Education Requirements
As of recent IDPH plumber rules, licensed plumbers are required to complete continuing education each year to remain in good standing.
Requirements include:
- Minimum of 4 hours of continuing education annually.
- CE must be completed with an IDPH-approved provider.
- Topics include plumbing code updates, water conservation, cross-connection control, and other relevant skills and safety matters.
Failure to complete continuing education may result in denial of license renewal or fines.
Approved CE providers and more about the CE process can be found here: IDPH Plumber CE Info
Penalties for Operating Without a License
Operating as a plumber or plumbing contractor in Illinois without a valid license is illegal and comes with serious consequences. The IDPH regularly checks for compliance, and the penalties can damage your reputation and put your business at serious financial risk.
Penalties may include:
- Cease and desist orders
- Fines up to $1,000 per offense per day
- Prosecution for unlicensed activity
- Revocation of future license eligibility
Unlicensed work also leaves you liable in civil court if a customer pursues damages. It is also typically not covered by insurance or bonding, exposing you even further.
Why Licensing Protects Both Contractors and Homeowners
Licensing isn’t just a formality—it’s a tool for quality control, safety, and professionalism. Illinois plumbing license laws protect both contractors and clients in the following ways:
For Contractors
- Validates experience and professionalism.
- Protects against liability and legal disputes.
- Builds trust with homeowners and commercial clients.
- Increases eligibility for bids, projects, and contracts.
- Required for insurance and bonding.
For Homeowners
- Ensures trained, qualified professionals perform work.
- Affirms compliance with plumbing codes and health regulations.
- Protects property values by preventing shoddy or unsafe installations.
- Offers legal protection and recourse in case of faulty workmanship.
Plumbing is a critical industry that directly impacts public health and safety. That’s why Illinois takes plumber licensing seriously—and why you should too.
Quick Summary of Requirements
Here’s a helpful checklist to keep track of your Illinois Plumbing License path:
- ✅ Apprentice: Register with IDPH, enroll in program, yearly renewal.
- ✅ Licensed Plumber:
- Complete 4+ years apprenticeship.
- Pass Illinois plumber exam.
- Apply and pay license fees.
- Complete annual CE (4 hours).
- Renew annually.
- ✅ Plumbing Contractor:
- Be or employ a licensed plumber.
- Submit insurance, tax ID, application.
- Register with IDPH yearly.
Need Help? Stay Compliant with Mentorship and Associations
Navigating the licensing process can be overwhelming, especially if you’re juggling work or running a business. If you have questions or concerns about compliance, consider reaching out for guidance:
- Talk to your apprenticeship program supervisor or union rep.
- Contact the Illinois Association of Plumbing-Heating-Cooling Contractors (IL PHCC).
- Reach out to experienced mentors in the field.
These resources can help you avoid costly mistakes and make sure you’re moving forward the right way.
📞 Need direct help? Call us at (555) 123-4567 or connect with us on Facebook and Instagram @IllinoisPlumbingPros.
Conclusion
As a plumbing professional in Illinois, you’ve chosen a respected and essential trade—but with that comes responsibility. Understanding and following state licensing and certification laws isn’t just about legal compliance—it’s about protecting your business, delivering quality work, and serving your customers with integrity.
Take the time to ensure you’re properly licensed and up to date. Use trusted resources like the IDPH and local trade associations to guide your path. When you stay informed and compliant, you’re investing in your long-term success.
Stay licensed. Stay trusted. Grow your reputation the right way.
📞 (555) 123-4567
📱 Follow us on Facebook and Instagram: @IllinoisPlumbingPros