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.  

Public Search for a License/Online License Verification - 

The board's online license verification system will be available by May 20.  A list of currently licensed 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 and Public Actions page. 

Licensed Contractors 3/27/2017 PDF


New Online Database Available

The board has transitioned to a new online database for license and exam applications and license renewal.  If you previously had a username and password for the old database it did NOT transfer to the new system.  You will be required to create a state of Iowa A&A account.  Detailed instructions for using the new system and links to the new public portal can be found on the IDPH Regulatory Programs page.

Renewal Update

Individual license renewal notices were mailed on May 15, 2017.  Contractor renewal notices have also been sent for printing and should arrive within a few days of the individual license renewal notice.  If your license expires on June 30, 2017, you have a 30-day grace period to renew the license without additional late penalty fees.  The online renewal system is now available.  Online applications require significantly less time for processing and save a paper application processing fee.  In addition, if you apply online, the license certificate and wallet card will be sent via email electronically within 24 hours of the approval date.  It is very important that users review the instructions for creating an account and submitting applications or a renewal prior to logging on.  These instructions are available on the IDPH Regulatory Programs page where you will also find a link to the public portal.  If you need to download a paper renewal form, go to the board's Licensure - Renew a License webpage and scroll to the bottom of the page. 

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