Madison County • 26 miles from Des Moines
Radon Mitigation & Testing in Winterset, Iowa.
Certified testing, one-day mitigation, and a 2.7 pCi/L guarantee for Winterset homeowners. Madison County averages 9.1 pCi/L, and Winterset is about 26 miles southwest of downtown Des Moines.
Iowa-certified • same-day test results • one-visit installs • every system guaranteed below 2.7 pCi/L
Madison County radon average
9.1 pCi/L
- vs. EPA action level
- 2.3×
- Iowa counties
- 32nd of 99
- U.S. average
- 1.3
Mean pre-mitigation level in tests reported 2008–2017, CDC Tracking Network. EPA action level 4 pCi/L; Iowa averages 8.5.
What 9.1 pCi/L means for your Winterset home
The county number for Winterset is 9.1 pCi/L, Madison County's average in CDC-reported tests from 2008 through 2017, which ranks it 32nd of 99 Iowa counties and 7 times the U.S. average. Polk County, next door to the metro, averages 7.3; Madison County runs higher, and Winterset homes test accordingly. What it cannot tell you is your own result; two houses on the same Winterset street regularly land on opposite sides of the action level.
The county figure tells you the odds; a certified test tells you the answer. We place a continuous monitor in your Winterset home for 48 to 72 hours and email the report the day it comes out. If it reads 4 pCi/L or higher, you get a written mitigation quote the same day, and every system we install is guaranteed below 2.7 pCi/L.
Free radon test kit for Winterset homes
Yes. Winterset is in a rural Iowa county covered by the state's free radon test kit program.
Healthy Hometowns: Combat Cancer, run by Marion County Public Health with local health departments across rural Iowa, provides one free radon test kit per household while supplies last. Request it through the program's order form, or ask Madison County Public Health.
Request a free kit (Healthy Hometowns: Combat Cancer) →A free kit is a mailed charcoal test: results take a couple of weeks, one kit can miss a high reading, and it is not accepted for a real-estate sale. If it comes back at 4.0 pCi/L or higher, the next step is a certified 48-to-72-hour monitor test with same-day results, then a same-day mitigation quote.
The same program is funding mitigation help for rural homeowners whose homes test high. If your kit comes back at 4.0 pCi/L or above, call us: we confirm the number with a certified monitor test, quote a system the same day, and point you to your Madison County program contact for any assistance you qualify for.
Need a result this week, or for a home sale? Skip the wait: book a certified monitor test. Iowa Radon Hotline: 1-800-383-5992.
Radon in Winterset Homes
A stable town of 5,353 people incorporated in 1857, Winterset has the housing stock you would expect: railroad-era homes on block or stone foundations, mid-century ranches with full basements, and a smaller number of newer builds. Each of those mitigates well, but each needs its own suction-point design.
With about 1,169 residents per square mile over 4.58 square miles, Winterset has the lot sizes of a traditional Iowa town: detached houses, side yards, and room to put the fan and vent where they are least visible. Routing is rarely the hard part here; the foundation is.
We reach Winterset, about 26 miles southwest of downtown Des Moines, on regular routes. The closest communities we also serve are St. Charles (11 mi), Earlham (12 mi) and Van Meter (13 mi). Testing is a 48-to-72-hour continuous monitor with same-day results, and most mitigations finish in one visit, followed by a clearance test and our 2.7 pCi/L guarantee.
See what a system involves on our radon mitigation in Des Moines page, or start with a certified radon test. For how Madison County compares to the rest of the state, see Iowa radon levels by county.
What we see in Winterset
Housing we see
Predominantly older homes on block or stone foundations, often with partial basements or crawl spaces.
What a system looks like here
Sealed suction point in the slab or sump, exterior fan on the least visible side, vent above the roofline, clearance test.
Town at a glance
5,353 residents (up 3% since 2010), incorporated 1857, 4.58 square miles.
Getting there
Winterset is 26 miles southwest of downtown Des Moines. Tests scheduled seven days a week; most mitigations done in one visit.
Winterset at a Glance
- Population (2020)
- 5,353
- Incorporated
- 1857
- From Des Moines
- 26 mi
- Our guarantee
- < 2.7 pCi/L
Population and incorporation date from the U.S. Census. Distance is straight-line to downtown Des Moines.
Why Winterset homeowners call All Midwest Radon
Iowa-certified measurement and mitigation specialists, based in the Des Moines metro and on the road in Madison County every week.
The 2.7 Guarantee
Every system we install is guaranteed below 2.7 pCi/L, the World Health Organization's level, or we return at no charge until it is.
Same-day results
A continuous monitor, 48 to 72 hours, and the report emailed the day it comes out. Scheduled seven days a week, including for home sales.
One-visit installs
Most Winterset systems go in during a single visit, with the fan on the least visible side of the house and a clearance test to prove it worked.
Built to last
Quiet Festa AMG fans with a 7-year manufacturer warranty, a 1-year workmanship warranty, and an Iowa-compliant homeowner manual for your records.
Winterset Radon Questions
Do you come out to Winterset?
We do. Our Madison County route covers Winterset and its neighbors St. Charles, Earlham, Van Meter, 26 miles out from Des Moines. Tests are scheduled seven days a week and mitigation visits are booked like any metro job.
How high is radon around Winterset?
The Madison County average is 9.1 pCi/L in the CDC's 2008 to 2017 data, 32nd of 99 Iowa counties. The EPA action level is 4. Averages describe the county, not your house: Winterset homes land on both sides of the line, and only a certified test tells you which.
Can I get a free radon test kit in Winterset?
Yes. Madison County households can request one free short-term radon test kit through Healthy Hometowns: Combat Cancer, the state program for rural Iowa, while supplies last. A kit is a good first look, but results take weeks and it is not accepted for a home sale. A certified 48-to-72-hour monitor test gives same-day results, and any reading at 4.0 pCi/L or above should be confirmed that way before mitigation.
What does a mitigation install in Winterset involve?
One visit for nearly every Winterset home. The crew seals a suction point in the slab or sump, runs the pipe to an exterior fan on the least visible side of the house, terminates above the roof, and sets a clearance monitor. The result is guaranteed below 2.7 pCi/L.
Do Winterset sellers have to test for radon?
No. Iowa Code chapter 558A is a disclosure law: a seller must disclose any known test results and provide the Iowa Radon Home Buyers and Sellers Fact Sheet, but no law requires the test itself. In practice the buyer orders a certified test during the inspection period. We schedule those seven days a week.
Also serving Madison County
Ready to protect your Winterset home?
Certified 48 to 72 hour testing with same-day results, and mitigation guaranteed below 2.7 pCi/L.