Hiring a contractor in Iowa: check, red flags, complaints
Check the DIAL registration, and a Plumbing and Mechanical Systems Board license for plumbing or HVAC work. (source: DIAL: Contractor Registration (opens in a new tab))
Check a license on the DIAL website (official site, opens in a new tab)
How: Use the Check a contractor license link on DIAL's contractor page. Registration shows tax and insurance compliance, not skill. (source: DIAL: Contractor Registration (opens in a new tab))
Checked against official Iowa Department of Inspections, Appeals, and Licensing sources. See sources.
Red flags when hiring
- An out-of-state contractor without an Iowa registration. (source: DIAL: Contractor Registration (opens in a new tab))
- Plumbing or HVAC work by someone without a Plumbing and Mechanical Systems Board license. (source: DIAL: Contractor Registration (opens in a new tab))
Sources and last verified
Last verified: . Next check due: . Every fact on this page links to one of these official pages.
- DIAL: Contractor Registration (opens in a new tab) (checked Oct 24, 2026)
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