Marshall County • 48 miles from Des Moines
Radon Mitigation & Testing in Gilman, Iowa.
Iowa-certified radon testing and guaranteed mitigation for Gilman, 48 miles northeast of Des Moines, a routine drive for our crews. Marshall County homes average 11.2 pCi/L, well above the EPA action level.
Iowa-certified • same-day test results • one-visit installs • every system guaranteed below 2.7 pCi/L
Marshall County radon average
11.2 pCi/L
- vs. EPA action level
- 2.8×
- Iowa counties
- 7th 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 11.2 pCi/L means for your Gilman home
In the CDC's 2008 to 2017 data, the average Marshall County home measured 11.2 pCi/L before mitigation, 7th highest of Iowa's 99 counties and far above the U.S. average of 1.3. That is higher than Polk County's 7.3, so a Gilman home is, on average, more likely to test high than one in the Des Moines suburbs. Iowa HHS is blunt that neighbors can test very differently, which is why we never guess at a Gilman home from the county figure.
The county figure tells you the odds; a certified test tells you the answer. We place a continuous monitor in your Gilman 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 Gilman homes
Yes. Gilman 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 Marshall 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 Marshall 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 Gilman Homes
Gilman's population has barely moved since 2010 (542 in the last census), which means its homes are largely the ones that were already standing: railroad-era houses from its 1876 founding onward, on stone and block foundations, plus post-war ranches with full basements (the city also reaches into Humboldt and Pocahontas County). In those houses the work is sealing and suction-point placement, and we test the result before we leave.
Gilman's 0.54 square miles hold about 1,004 people per square mile, classic Iowa small-town lots with room between houses. That usually means an exterior fan on the side away from the street and a vent run that stays off the front of the house, with the neighbors far enough away that fan placement is simple.
We reach Gilman, 48 miles northeast of Des Moines, a routine drive for our crews, on regular routes. Le Grand (9 mi), Marshalltown (12 mi) and Kellogg (13 mi) are the neighboring towns on the same route. 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 Marshall County compares to the rest of the state, see Iowa radon levels by county.
What we see in Gilman
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
542 residents (up 6% since 2010), incorporated 1876, 0.54 square miles.
Getting there
Gilman is 48 miles northeast of downtown Des Moines. Tests scheduled seven days a week; most mitigations done in one visit.
Gilman at a Glance
- Population (2020)
- 542
- Incorporated
- 1876
- From Des Moines
- 48 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 Gilman homeowners call All Midwest Radon
Iowa-certified measurement and mitigation specialists, based in the Des Moines metro and on the road in Marshall 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 Gilman 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.
Gilman Radon Questions
Does All Midwest Radon serve Gilman, Iowa?
Yes. Gilman is 48 miles northeast of our Des Moines base and inside our regular service area, along with the rest of Marshall County and nearby Le Grand, Marshalltown, Kellogg. We test and mitigate homes in Gilman on the same schedule as the Des Moines metro.
What is the average radon level in Marshall County?
11.2 pCi/L, based on tests reported to the CDC Tracking Network from 2008 through 2017. That ranks 7th of Iowa's 99 counties and is 2.8 times the EPA action level of 4 pCi/L. Individual Gilman homes test both far above and below that average, which is why a test of your own home is the only reliable answer.
Can I get a free radon test kit in Gilman?
Yes. Marshall 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.
How long does radon mitigation take in Gilman?
Most Gilman installs are completed in a single visit. We place a sealed suction point in the slab or sump pit, route the vent pipe to an exterior fan, and finish above the roofline, then run a post-mitigation clearance test. Every system is guaranteed to bring the home below 2.7 pCi/L.
Is a radon test required to sell a home in Gilman?
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 Marshall County
Ready to protect your Gilman home?
Certified 48 to 72 hour testing with same-day results, and mitigation guaranteed below 2.7 pCi/L.