A Complete Guide on Wyoming Plumbing License

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Are you tired of simply being just another plumbing contractor in the crowded industry? It’s time to separate yourself from the competition and stand out as a licensed professional. 

Getting a Wyoming plumbing license sets you apart from the rest of the other plumbers in Wyoming. Not just this, but it also shows your commitment to providing safe and quality plumbing services to your clients.

As per the U.S. Bureau of Labor and Statistics (BLS), there are around 4,69,900 plumbers, pipefitters, and gasfitters. With so many plumbers nationwide, where do you even start with obtaining your Wyoming plumbing license? Don’t worry, we’ve got your back. 

Let’s deep dive into this comprehensive guide and make you ready to elevate your plumbing career and showcase your expertise to the world.

Choose the Right Contracting Class

A plumbing contractor in Wyoming needs to identify his or her plumbing class and then obtain one of the following plumbing licenses to legally work as a contractor in Wyoming:

  • Class A General Contractor: Contractors performing any type of construction, alteration, or repair work on any size structure falls under this. 
  • Class B Building Contractor: Those who handle construction, alteration, or repair work on family residential construction and commercial buildings under 2500 square feet and on one story size get categorized under this. 
  • Class R Residential Contractor: Anyone who performs construction, alteration, addition, or repair work on single-family attached dwellings and buildings under three stories goes under this.

There are four types of plumbing licenses available in Wyoming. They are 

  • Apprentice plumber license 
  • Journeyman plumber license 
  • Master plumber license 
  • Plumbing contractor license 

General Requirements for Obtaining Wyoming Plumbing License 

  • Obtain the necessary classroom training and hands-on experience to qualify as a journeyman or master plumber.
  • Pass the journeyman plumber exam.
  • Acquire a Wyoming master plumbing license.
  • Qualify for the Wyoming master plumbing exam.
  • Become a licensed independent plumbing contractor.

Apprenticeship Program

Getting trained as an apprentice is the first and foremost step towards obtaining the Wyoming plumbing license. 

Good plumbing apprenticeship programs will help the plumbing contractors develop the necessary skills and will help them learn new things before becoming licensed journeymen or master plumbers. 

The plumbing apprenticeship programs vary from city to city. However, the general requirements or the criteria for qualifying for the apprenticeship program are

  • Three to five years of on-the-job training under the direct supervision of a licensed journeyman or master plumber, and
  • Three to five years of formal classroom schooling.

The requirements to enroll as an apprentice will vary from provider to provider; however, some of the common ones are listed below:

  • At least 18 years of age
  • GED or high school diploma
  • Ability to carry out physical activities
  • Strong communication skills
  • Good command over English and Maths
  • No criminal history
  • Capacity to withstand a drug test

Depending on the particular apprenticeship program from city to city, requirements may change. An example of the different local jurisdiction requirements is shown in the table here:

Cheyenne Casper
Application Form Cheyenne Apprentice Plumber License Casper Apprentice Plumber License
Application Fees $380 $3
Renewal Fees $3 $3

Journeyman Plumbing Licensing Requirements

Apprentice professionals must have gone through the apprenticeship program for three to five years, and have gained enough experience to apply for the journeyman plumber license. 

Though Wyoming mandates the licensing requirements city-wise and not the state-wise, some of the common requirements that an apprentice must undergo, irrespective of what municipality he targets:

  • Complete a four-year direct, hands-on exposure to the trade under the supervision of a journeyman plumber.
  • Pass the journeyman plumber licensing exam.
  • Contact the relevant local jurisdiction and apply for licensure. The application fees and form may vary depending on the respective local jurisdictions.

Again an example of the different local jurisdictions for journeyman licensing requirements is shown in the table here:

Cheyenne Casper
Application Form Cheyenne Journeyman Plumber License Casper Journeyman Plumber License
Application Fees $80 $25
Renewal Fees $15 $15

Journeyman Plumbing Examination Requirements

To become a Journeyman Plumber, one must pass the International Code Council (ICC) or Wyoming Association of Municipalities (WAM) exam successfully, which can be taken online.

The contractors can call on 1-(877)-234-6082 to contact over the phone in case they want to communicate with the local representative for local testing facilities.

Exam Fees No of Questions Passing %
$105 70 Multiple Questions 75%

The Wyoming plumbing journeyman exam usually covers the following topics regardless of whatever jurisdiction you are applying for:

  • Administrative Procedures
  • Drainage Systems
  • Faucets, Fittings, and Fixtures
  • Pipes and Pipefitting
  • Sewage Systems
  • Trade Mathematics
  • Vents and Venting
  • Water Supply and Distribution

For the Wyoming plumbing exams, you can bring:

  • 2015 International Plumbing Code 
  • Approved reference material
  • Ink or highlighted code sections
  • Attached tabs 
  • Highlighted reference notes 
  • A magnifying glass, or eyeglasses (if needed), 
  • An architects’ scale or rule 
  • A battery-operated calculator, and 
  • A foreign language/English translation dictionary (if needed).

Master Plumbing Licensing Requirements

To obtain a Master Plumbing license in Wyoming, the following steps are generally required to follow by future master plumbers:

  • Obtain comprehensive direct, hands-on experience as a journeyman plumber.
  • Call 1-877-234-6082 to register for the Master Plumber’s exam or visit https://wsr.pearsonvue.com/icc/.
  • After clearing the exams, get in touch with the respective licensing authority and request an application for licensure.
Jackson Town of Jackson Contractor License Application PO Box 1687, Jackson, Wyoming 83001

Phone: (307) 733-0520

Fax: (307) 734-3563
Cheyenne Building Safety Department 2101 O’Neil Avenue, Room 202 Cheyenne, Wyoming 82001

Phone: (307) 637-6332

Fax: (307) 637-6366

    Note: Requirements for the Master plumbing license may vary by municipality, so it is advisable to check with your municipality for more specific details.

The Wyoming Master plumbing exam consists of 100 Questions related to the following subject areas:

Subject areas Portion covered (%)
Administration 4%
General regulations 7%
Fixtures 6%
Water heaters 4%
Water supply and distributions 11%
Sanitary drainage 15%
Vents 16%
Traps, interceptors, and separators 7%
Storm drainage 1%
Plan reading 27%

The Wyoming Master with Gas plumbing exam consists of 100 Questions related to the following subjects:

Subject areas Portion covered (%)
Plumbing fixtures and terminology 7%
Planning fundamentals 13%
Traps, cleanouts, and interceptors 7%
Special requirements 6%
Drainange requirements 8%
Vent requirements 9%
Water distribution 7%
Plan and analysis 23%
Gas 20%

It will be an open book exam and the results will be available immediately after completion of the examination if you have taken the exam electronically, 

Plumbing Trade Schools

College Name Tuition Fees Contact Address
Casper College $2,832/year (307) 268-2100 125 College Dr, Casper, WY 83601
Laramie County Community College $3,306/year (307) 778-5222 1400 E College Dr, Cheyenne, WY 82007
Western Wyoming Community College $2,576/year (307) 382-1600 2500 College Dr, Rock Springs, WY 82901

Benefits of Having a Wyoming Plumbing License?

For any plumber in Wyoming, the license is a launchpad to increase new possibilities. Want to know how? 

Here are the few benefits that attract a plumber to have a Wyoming plumbing license:

  • It increases credibility and helps build trust among clients. This, in turn, helps get more plumbing leads and, ultimately, an increase in revenue with positive business growth.
  • It can open up new job opportunities for a plumbing contractor who will be able to win more jobs, having completely licensed manpower. 
  • A licensed plumber can create a good reputation in the Wyoming plumbing industry, leading to more word-of-mouth referrals and repeat business.
  • Licensing helps plumbing contractors to bid on larger and more complex projects.
  • Helps facilitate professional growth and development.

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Wyoming Reciprocity Arrangements

The first thing to get clarity on is that Wyoming does not provide state-level licenses. Hence, the reciprocity agreements and the rules framed for this process are entirely upon the municipality in which you plan to conduct. 

An example of this is your Wyoming plumbing license reciprocity agreements from another state may be honored in the town of Jackson, but it may not be in Cheyenne. So, irrespective of whether your license has some sort of reciprocity agreement, you still need to prove your competence by undergoing some upfront training and examination as per the respective local jurisdiction’s requirements.

For checking local jurisdictions city/town-wise, the Wyoming Association of Municipalities will give you better clarity which will eventually help you to avoid double-dipping.

    Note: The nonresident general contractors must post a bond with the Wyoming Department of Revenue. The cost of the bond will depend entirely on the cost set by their local jurisdiction.

Frequently Asked Questions
  1. Who issues the Wyoming plumbing licenses, and when?

    The Wyoming plumbing license is issued by

    Building Safety Department

    2101 O’Neil Avenue, Room 202

    Cheyenne, Wyoming 82001

    Phone: (307) 637-6332

    Fax: (307) 637-6366

  2. What is the process for renewing a Wyoming plumbing license?

    It is common to request a renewal, and it’s advisable to check with your local council to determine if your license needs renewal or not. The cost of renewing a professional plumber license in Wyoming can differ depending on the levels; for instance, in Cheyenne, the fee for a plumbing contractor license is $75, while a master plumber license renewal is $25.

  3. What are the requirements for getting a plumbing license in Wyoming?

    The requirements can vary depending on the type of license you are seeking and the local council, However, common requirements include

    • Completing an application,
    • Meeting education and experience requirements,
    • Passing a plumbing exam, and
    • Obtaining necessary insurance.


By walking through the whole comprehensive guide on how to become a licensed plumber in Wyoming, you must be surely wondering how to get yours. Without any further delay, apply ASAP, as licensing is a path to new horizons, and your plumbing business will surely get boosted.

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Author Bio
Jeel Patel
Jeel Patel

Jeel Patel is the founder of InvoiceOwl, a top-rated estimating and invoicing software that simplifies the invoicing and estimating processes for contractor businesses. Jeel holds a degree in Business Administration and Management from the University of Toronto, which has provided him with a strong foundation in business principles and practices. With understanding of the challenges faced by contractors, he conducted extensive research and developed a tool to streamline the invoicing and estimating processes for contractors. Read More