Iowa does not issue a separate plumbing exam license for the contractor who sells the job. Under Iowa Code chapter 91C, a construction contractor who earns at least $2,000 in a year must register with the Department of Inspections, Appeals, and Licensing. That registration is a filing, not a plumbing exam. Des Moines still controls the permit. Ask who will pull it, and look the company up with DIAL before you sign. This page shows which Des Moines plumbers AI assistants named most often across answers RecommendRadar ran and stored, how often each appeared, and the sources those answers cited. Visibility to AI isn't the same as good work, so ask for the registration and confirm it.
5 snapshot runs from the last 45 days named a business. This page is indexed after 3 such runs. Names that differ by case, punctuation, a leading The, a practice suffix, or a shortened firm name are combined.
Before you contact anyone on this list
- Ask which license covers this job and match it to the price.
- Ask who will pull the building permit.
- Get a written quote before work starts.
FAQ
Does Iowa give plumbers a trade-exam license?
The contractor who sells the work registers under Iowa Code chapter 91C once yearly earnings reach $2,000. That is not a plumbing exam. Confirm the registration with DIAL.
Who permits plumbing work in Des Moines?
The city. Ask which contractor will pull the permit.
Which Des Moines plumbers did AI name most?
Clog Busters Drain Cleaning & Repair (5 of 5), Holt Plumbing & Heating (3 of 5), Richardson Plumbing Company (3 of 5), Thrasher Service Corp (3 of 5), Lazer Home Services Plumbing HVAC & Electrical (2 of 5), Advanced Problem Solutions (1 of 5), American Plumbing (1 of 5), Clean & Clear (1 of 5), Priority Plumbing Company (1 of 5)
How this page works
Every name, count, and source on this page comes from answers RecommendRadar ran and stored for the best plumber in Des Moines, IA. Nothing is added or edited by hand. These stored answers came from Perplexity and ChatGPT. Sample: 5 stored answers from the last 45 days, refreshed October 25, 2026. AI answers vary with wording, time, location, and engine, so this is a dated sample of what those engines said, not an endorsement or a ranking of quality.