Idaho Plumbing License: Everything You Need to Know

The plumbing industry in Idaho offers rewarding career opportunities for skilled professionals. Licensing for Apprentices, Journeymen, and Plumbing Contractors is managed by the Idaho Division of Building Safety. This guide provides an overview of licensing requirements, insurance, renewals, salaries, and career resources to help you succeed in Idaho’s plumbing field.

What plumbing work can be done without a license?

In Idaho, individuals without a plumbing license are limited to minor, non-technical tasks like replacing faucets or unclogging drains. All other plumbing work, including pipe installations, water heater repairs, and system maintenance, must be performed by a licensed professional. Property owners may complete limited plumbing work on their own homes, but permits and inspections are often required. Always check with local authorities for specific regulations.

What are the different types of plumbing licenses available in Idaho?

Idaho licenses three primary levels of plumbers: Apprentice, Journeyman, and Plumbing Contractor. Each license has distinct requirements and scopes of work:

Apprentice Plumber

Requirements:

• Register with the Idaho Division of Building Safety.
• Enroll in an apprenticeship program that includes 8,000 hours of supervised on-the-job training and 576 hours of classroom instruction over four years.

Scope of Work:

• Perform plumbing tasks under the direct supervision of a licensed Journeyman or Plumbing Contractor.

Journeyman Plumber

Requirements:

• Complete the required apprenticeship hours and coursework.
• Pass the Journeyman Plumber exam, which evaluates knowledge of plumbing codes, safety protocols, and system design.

Scope of Work:

• Work independently on residential and commercial plumbing projects.
• Supervise Apprentices.

Plumbing Contractor

Requirements:

• Hold a valid Journeyman license for at least two years.
• Provide proof of liability insurance and bonding.
• Pass a business and law exam.

Scope of Work:

• Manage plumbing projects, operate a business, and supervise Journeymen and Apprentices.

Average hourly rates for plumbers in Idaho

Plumbers in Idaho earn wages based on their experience and qualifications. Here’s a breakdown of average hourly rates in Idaho compared to national averages:

• Apprentice Plumber: $14.50 per hour (National Average: $15.31)
• Journeyman Plumber: $24.00 per hour (National Average: $25.37)
• Master/Contractor Plumber: $30.00 per hour (National Average: $30.46)

Urban areas like Boise and Idaho Falls often offer higher wages due to increased demand.

How to get a plumbing license in Idaho

The licensing process in Idaho combines hands-on training, formal education, and examination requirements to ensure plumbing professionals meet state standards.

Step 1: Apprenticeship

Enroll in an apprenticeship program through unions, technical schools, or local employers. Apprenticeships in Idaho typically last four years and require the completion of 8,000 hours of supervised on-the-job training under a licensed Journeyman or Plumbing Contractor. Training focuses on practical skills such as pipe installation, system maintenance, and troubleshooting. Additionally, apprentices must complete classroom instruction covering essential topics such as plumbing codes, safety standards, blueprint reading, and system design.

Apprentices must register with the Idaho Division of Building Safety (DBS) to maintain their apprentice status and renew their registration annually. During this period, they must also submit verified records of their training hours to the DBS.

Where to Get Education

Several institutions and organizations provide plumbing apprenticeship opportunities:

• UA Local 296: Offers comprehensive apprenticeship programs combining hands-on training with classroom education. Located in Boise, the program covers industry standards, advanced plumbing systems, and regulatory compliance.
• College of Western Idaho (CWI): Provides pre-apprenticeship and apprenticeship-related courses for individuals seeking a strong foundation in plumbing.
• North Idaho College: Offers technical courses focusing on plumbing systems, safety practices, and state codes.

Step 2: Journeyman Plumber License

Once an apprentice has completed the required training hours and coursework, they can apply for the Journeyman Plumber exam through the Idaho Division of Building Safety. The exam assesses knowledge of:

• Idaho plumbing codes and state-specific regulations.
• System design and troubleshooting techniques.
• Workplace safety protocols.

Applicants must submit proof of their completed training hours, classroom instruction, and an application fee. A passing score on the Journeyman exam allows plumbers to work independently and supervise apprentices, enabling them to manage day-to-day plumbing operations without oversight.

Step 3: Plumbing Contractor License

Journeyman Plumbers seeking to operate their own businesses must apply for a Plumbing Contractor license. Requirements include:

1. Experience: At least two years of work experience as a licensed Journeyman Plumber.
2. Examinations: Candidates must pass a business and law exam to demonstrate knowledge of financial management, contract law, and Idaho-specific business regulations.
3. Insurance and Bonding: Proof of general liability insurance and bonding must be submitted with the application to show financial responsibility and protect clients from potential liabilities.

Licensed Plumbing Contractors are authorized to:

• Manage residential and commercial plumbing projects.
• Hire and supervise Journeymen and Apprentices.
• Operate their own plumbing businesses.

By following these steps, aspiring plumbers in Idaho can gain the skills, certifications, and expertise needed to excel in the plumbing industry.

Checklist for Obtaining a Plumbing License

Here’s a step-by-step checklist to guide you through the process:

1. Apprentice Plumber
   • Register with the Idaho Division of Building Safety.
   • Enroll in an approved apprenticeship program.
   • Complete 8,000 hours of supervised training and 576 hours of coursework.
2. Journeyman Plumber License
   • Finish apprenticeship training.
   • Pass the Journeyman Plumber exam.
   • Submit proof of training hours and pay the application fee.
3. Plumbing Contractor License
   • Hold a Journeyman license for at least two years.
   • Pass the business and law exam.
   • Provide proof of liability insurance and bonding.

Should I join a union?

Joining a union, such as UA Local 296 in Boise, Idaho, provides plumbers with numerous advantages that can significantly enhance their careers. Here’s why union membership is worth considering:

• Comprehensive Training: Access to structured apprenticeship programs and continuing education.
• Higher Pay: Union plumbers often earn 20% more than non-union counterparts.
• Benefits: Health insurance, pension plans, and job security.

Union apprenticeships also offer progressive wages and opportunities for networking within the industry.

Insurance for plumbers in Idaho

In Idaho, licensed plumbing contractors are required to maintain specific insurance coverages to protect both their operations and clients:

General Liability Insurance: Contractors must carry a general liability insurance policy with a minimum coverage of $300,000 single limit. 

Workers’ Compensation Insurance: Any employer with one or more employees—whether full-time, part-time, seasonal, or occasional—is mandated to provide workers’ compensation insurance. This insurance covers medical expenses and lost wages for employees who sustain work-related injuries or illnesses.

Proof of both general liability and workers’ compensation insurance is required when obtaining and renewing a plumbing contractor license in Idaho.

How to get my first plumbing apprenticeship

Securing an apprenticeship is a critical step toward becoming a licensed plumber in Idaho. Apprenticeships offer a combination of hands-on training and classroom instruction, equipping candidates with the skills and knowledge needed to progress to licensure. Programs are available through unions like UA Local 296, technical schools, and private plumbing companies.

Eligibility

To qualify for a plumbing apprenticeship in Idaho, candidates must meet the following requirements:

• Age: Be at least 18 years old.
• Education: Possess a high school diploma or GED.
• Testing: Some programs may require passing a basic aptitude test, which typically evaluates math skills, mechanical reasoning, and spatial awareness.
• Other Requirements: Candidates may need a valid driver’s license, reliable transportation, and the ability to pass a drug test, depending on the program.

Application Process

1. Prepare Your Resume: Highlight any construction, mechanical, or DIY experience that demonstrates technical aptitude and a strong work ethic.
2. Submit Applications: Apply directly to apprenticeship programs offered by unions, technical colleges, or private employers. Applications typically include proof of education, references, and a completed application form.
3. Attend an Interview: Dress professionally, arrive on time, and convey enthusiasm for the trade. Be prepared to discuss your career goals and why you are interested in plumbing.
4. Follow-Up: Demonstrate commitment by following up on your application or interview, showcasing your eagerness to begin training.

Program Details

Union-sponsored programs, such as those offered by UA Local 296 in Boise, provide comprehensive training that includes:

• On-the-Job Training: Apprentices work alongside licensed Journeymen and Master Plumbers, gaining hands-on experience in pipe fitting, system design, code compliance, and troubleshooting.
• Classroom Instruction: Topics include plumbing codes, blueprint reading, safety standards, and advanced system designs. Classes are typically held in the evenings or weekends to accommodate work schedules.

Duration and Certification

Apprenticeships in Idaho generally last four years and require completing at least 8,000 hours of supervised on-the-job training along with 576 hours of classroom instruction. Apprentices must also register with the Idaho Division of Building Safety (DBS) to maintain their apprentice status and ensure eligibility for the Journeyman Plumber exam upon program completion.

Does my license work in any other states?

Idaho maintains reciprocity agreements for journeyman plumber licenses with Montana, Oregon, and Washington, facilitating a streamlined licensing process for qualified professionals from these states. However, specific conditions apply:

• Montana: Applicants must have held a journeyman plumber license for at least one year.
• Oregon: Applicants must have held their license for a minimum of six months.
• Washington: Applicants must be current residents of Washington State. 

Therefore, Idaho plumbing licenses are not automatically valid in other states.

How do I stay up to date with plumbing codes?

Licensed plumbers in Idaho are required to stay up to date with the current plumbing codes. Updated Idaho references can be found on the following websites:

• International Code Council
• UpCodes

What resources are available in the plumbing industry?

The following information will help you prepare for a career as a plumber in Idaho:

• Plumbing Specialties
• Plumbing Industry Trends
• Plumbing Blogs
• Plumbing Trade Shows

I already have a license but:

• I Changed My Name: If you have changed your name, notify the Idaho Division of Building Safety (DBS). Submit legal documentation, such as a marriage certificate, divorce decree, or court order, to update your license. Contact DBS directly to confirm the required forms and submission methods.
• I Misplaced My License: If your license is lost or damaged, you can request a replacement through the DBS online portal or by contacting the licensing office. A replacement fee of approximately $10–$20 may apply. Ensure all personal information on file is accurate during the replacement process.
• I Changed My Address: Update your address with the DBS to ensure you receive important communications about renewals, changes in requirements, and other notifications. Updates can typically be made online or by submitting a change of address form. Failure to update your address may lead to missed renewal notices and possible license suspension.

How often do I need to renew my plumbing license in Idaho?

Plumbing licenses in Idaho must be renewed annually. The renewal process includes:

• Fees: Renewal fees vary by license type:
  • Apprentice Plumber: $50
  • Journeyman Plumber: $75
  • Plumbing Contractor: $125
• Requirements: Proof of insurance (for contractors) and updates to any required documentation.

Failure to renew on time may result in penalties or suspension of the license.