8 credentialed Iowa radon professionals serving Des Moines, sourced from the Iowa HHS credential rosters and cross-checked against each company's own site. Filter by what you actually need — a mitigation install, a test, or both.
Median paid, mitigation install · Des Moines metro
We only count a price when a reviewer describes a finished job and states the amount. Ads,
"starting at" quotes, and add-on charges that aren't the full job total are excluded.
This metro clears our own bar for showing a number: 5+ price points from 3+ different contractors.
Most metros in Iowa don't clear it yet, and we don't show a number for those.
Credential check: every Des Moines-based contractor below is on an Iowa HHS radon roster (number and roster date on each card). That means they're allowed to do the work, not that they do it well. Check an Iowa license yourself →
How much does radon mitigation cost in Des Moines, Iowa?
Based on 23 verified paid-installation prices from 4 different Iowa-credentialed contractors serving the Des Moines metro (2016-06 through 2025-01), the median price was $1,095, with a range of $900–$2,800. This is drawn from customer-reported prices on Angi and HomeAdvisor, not contractor-advertised “starting at” quotes, and is only published because it clears our own bar of 5+ prices from 3+ contractors — most Iowa metros don't clear that bar yet and we don't publish a number for those. What changes the price →
Source: customer-reported prices on Angi and HomeAdvisor, counted by RadonScout (see the price panel above).Does a radon contractor need a license in Iowa?
Yes. Iowa HHS certifies radon testers (measurement specialists, numbers starting RNTST) and credentials installers (mitigation specialists, numbers starting RNMIT). Mitigation rules in effect since July 1, 2026 require national ANSI/AARST installation standards and a level below 4 pCi/L after the system is installed.
No test is required. The seller disclosure statement does ask about radon: any known tests, the date of the last report and the results, and buyers must get the Iowa HHS radon fact sheet.
Not yet under state law. HF 2297, signed May 19, 2026, requires passive radon-resistant construction in new one- and two-family homes once the state building code commissioner adopts a rule. The draft rule's hearing was Oct. 21, 2026, and we found no adopted rule as of 2026-11-05. Locally, Johnson, Muscatine and Shelby counties and Harlan, Coralville, Iowa City and North Liberty have adopted a radon appendix (trade-group list).