Iowa Plumbing & Mechanical Systems Board

About the Board

The Iowa Plumbing and Mechanical Systems Board was established to administer and enforce the provisions of Iowa law regarding the licensing and regulation of plumbers, mechanical professionals, and contractors. The board issues trade licenses to plumbers, HVAC-refrigeration, sheet metal, hydronic and mechanical professionals, specialty licenses, contractor licenses, and medical gas piping installation certification. Anyone working in these disciplines in the state of Iowa is required to be licensed with the board.  The board also investigates complaints filed against licensees and investigates complaints alleging someone is practicing one of these trades without a license. 

For questions, please call our toll-free number at 1-866-280-1521 or by using the "Contact Us" option on this site. If you have email, please subscribe to the Plumbing and Mechanical Systems Board topic through the GovDelivery list serve.  By entering your email address at the following link, you will automatically be subscribed and receive periodic updates about upcoming board meetings and other board news.  

Online License & Exam Applications

To apply for a license online or exam authorization, please visit the Licensed in Iowa website and click on the link for "Plumbers & Mechanical Systems Board" on the top right of that page or go directly to our online services page at https://eservices.iowa.gov/pmsb/.  Prior to logging on to apply for a license or exam, you must register and create an account by following the link on that page.  If you know your username but have forgotten your password, click on the link on that page to reset your password.  If you have forgotten both your username and password, please call our office during normal business hours to request that we reset your account.  For security reasons, be advised that only the licensee can request their username and password be reset.  We will not accept requests on behalf of employers, employees, or family members to reset a licensee's account.

Also please note that the following categories of licenses are not available for online submission: contractor license application or contractor renewal; post-examination licensure, or renewal/reinstatement of a license.  These applications can only be submitted via the paper application.  Visit our Licensure page to download any paper applications or forms.  For licenses that expire on June 30, 2017, online renewal will be available sometime in May 2017.

Public Search for a License/Online License Verification

The Licensed in Iowa website includes a public search function that allows anyone to search by name, license number (listed as user # on the public search page), license type or trade.  This list is updated in real time and will show the profession/trade each person is licensed in, license status (active/expired/revoked, etc) along with the date the license was issued and date the license expires.  The list does not currently include licensed contractors.  A list of current contractors is available in PDF format for download here.  If you want to know whether someone has ever been disciplined by the board, please visit our "Discipline" tab on the left side of the PMSB webpage.

Licensed Contractors 3/10/2017 PDF


Online Renewal Not Available

Online renewal of licenses is NOT available at this time.  If you have a license that expires PRIOR to June 30, 2017, you must print and submit a paper renewal application form.  The normal paper application fee will be waived.  Please note, however, that if your license expires on June 30, 2017, the license cannot be renewed at this time.  Online renewal will be available again around May 2017.  Approximately 60 days prior to your license expiration date, a renewal notification will be mailed to the address we have on file.  Please be sure to keep your address information up to date.  You can do so by logging onto your online account (https://eservices.iowa.gov/pmsb/) or sending change of address to the board office. 

2015 Code Updates

The board has adopted the 2015 versions of the mechanical and plumbing code.  The new codes became effective June 1, 2016.  Please see our Iowa Code page for additional details.

Apprentice Fees

Note:  License fees are normally pro-rated based on the length of time the license is issued (all new licenses expire on June 30, 2017).  The fee for apprentice licenses issued between January 2017 and June 30, 2017, is $8.35.  Be advised that the online apprentice application is currently charging the full $50 apprentice fee.  As an alternative, applicants may complete the online apprentice application without paying the online fee (click Submit and Return Home at the end of the application) and submit a separate check to our office for the correct amount.  Include a note that the fee is for an apprentice application entered online and include your contact information.  You will not be charged the $25 paper application fee IF you enter the apprentice application online and submit payment by check or money order separately.  However, if you want to pay by credit card through the online system, you will be charged the full $50 fee. 

Mechanical Licenses

SPECIAL NOTE: A new mechanical license is available at renewal.  You must hold a hydronics and HVAC/R license at the same level (master or journeyperson) to be eligible to combine those licenses into a single mechanical license.  If you are eligible for the mechanical license, it will be the first option on your online renewal.

  • If you are also renewing a plumbing license, make sure you click the box that appears when you begin filling out the application.
  • At the end of the online mechanical application, Do Not Check Out. Select the button “Submit and Return Home” in order to add a plumbing and or specialty license and qualify for the 30% discount.

For additional questions, call our toll free number at 1-866-280-1521

New Application Forms

The application forms for licensure, renewal, and examination have recently been revised.  To expedite processing of all paper applications, please destroy old copies of any application forms you may have on file.  Always download and use the most recent version of the forms directly from the board website.

Iowa Plumbing and Mechanical Systems Board 2016 Annual Budget

Pursuant to Iowa Code 105.9, the Iowa Plumbing and Mechanical Systems Board has submitted their 2016 Annual Budget Report to the Iowa State Legislature. The report is now available for review.

Contact Information

Plumbing and Mechanical Systems Board office
321 E 12th Street
Des Moines, Iowa 50319-0075
Phone: 1-866-280-1521
FAX: 515-281-6114

Email: Please submit your questions using our online Contact Us Form