# Radon Mitigation De Soto, IA | 5-Year Warranty, 24/7 > Radon testing and mitigation for De Soto homes in Dallas County. Credentialed techs, 5-year warranty, 24/7 booking. URL: https://radonmitigationdesmoines.com/service-areas/de-soto/ ![Radon technician arriving at a central Iowa home with a radon monitor](/images/misc/radon-technician-walking-up-the-driveway-of-a-cent.webp) location\_on Serving De Soto & nearby areas # Radon Mitigation in De Soto, Iowa Last updated: October 27, 2026 De Soto is a small Dallas County town on I-80 with older homes, many expanded over the years. We design systems that cover basements and crawlspace additions with one fan. - verifiedIowa HHS credentialed - schedule24/7 booking - shield5-year warranty Request a Quote [/contact/ →](/contact/) phone\_in\_talk (515) 218-7447 [tel:+15152187447 →](tel:+15152187447) - verified Iowa HHS Credentialed - workspace\_premium NRPP / NRSB Certified Techs - shield 5-Year Warranty - support\_agent 24/7 Support Know the risk ## Radon Mitigation Challenges in De Soto The local problem ### A basement plus a crawlspace addition in an older De Soto house **What you notice:** Part of the house sits over a basement and part over a dirt or gravel crawlspace, and the level stays high after one fix. **Why it happens here:** De Soto has seen little new building, its population dipped between 2010 and 2020, so most homes are older houses that were expanded over time, often with a crawlspace addition beside the original basement. **How we fix it:** We seal the crawlspace with a heavy membrane and tie it into the same fan as a sub-slab point as part of residential radon mitigation. map ### Every Iowa county is EPA Zone 1 About 71% of Iowa homes test above the EPA action level of 4.0 pCi/L. Your neighbor's number tells you little about yours, so a 48-hour test is the only way to know. ac\_unit ### Winter makes it worse When the furnace runs and the ground freezes, warm air rises out of the house and pulls soil gas in through the slab, sump and cracks. real\_estate\_agent ### High results stall closings A failed radon test during inspection can hold up a sale. We test inside your contingency window and can install and verify a system before closing. Radon services ## Radon Services for Older and Rural Homes Testing, mitigation, new construction, commercial and maintenance from one credentialed team. The services most requested here are listed first. home ### Residential Radon Mitigation Radon systems matched to your foundation: basement sub-slab, crawlspace, exterior, waterborne and vapor intrusion. View Service arrow\_forward [Residential Radon Mitigation →](/residential-radon-mitigation/) monitor\_heart ### Radon Testing CRM, short-term, long-term, real estate and post-mitigation radon testing by credentialed testers. View Service arrow\_forward [Radon Testing →](/radon-testing/) domain ### Commercial Radon Systems Testing and mitigation for schools, HUD multifamily, offices, warehouses and vapor intrusion sites. View Service arrow\_forward [Commercial Radon Systems →](/commercial-radon-systems/) construction ### New Construction Radon Systems Passive system installs for builders, post-construction testing and passive-to-active upgrades. View Service arrow\_forward [New Construction Radon Systems →](/new-construction-radon-systems/) build ### Radon System Maintenance Error codes, fans, pipes and joints, and inspections for existing radon systems, including ones we didn't install. View Service arrow\_forward [Radon System Maintenance →](/radon-system-maintenance/) Most local requests start with residential radon mitigation [/residential-radon-mitigation/ →](/residential-radon-mitigation/) or radon testing [/radon-testing/ →](/radon-testing/) . Every job is handled by the same Iowa HHS-credentialed crews behind our radon mitigation in Des Moines [/ →](/) , with the same post-mitigation test and 5-year warranty. How it works ## Our Process Most single-family homes are finished in one day, and every system is verified before we call it done. 1. 01 monitor\_heart ### Test A 48-hour continuous radon monitor test in your home, or send us an existing result. 2. 02 architecture ### Design We review your foundation, slab sections and sump, then pick suction points and routing. 3. 03 construction ### Install Credentialed techs install, seal and add a manometer. Most homes take one day. 4. 04 fact\_check ### Verify A post-mitigation test proves the result, backed by our 5-year warranty. ## Basement and Crawlspace? One Fan Can Do It Send your result and foundation type for a written quote. Every system is verified with a post-mitigation test and covered by our 5-year warranty on systems and installs. phone\_in\_talk (515) 218-7447 [tel:+15152187447 →](tel:+15152187447) Request a Quote [/contact/ →](/contact/) Why choose us ## Why Western Dallas County Chooses Us - check\_circleRural home experience - check\_circleWell water radon systems - check\_circleCrawlspace membranes - check\_circle5-year warranty - check\_circle24/7 support ![Finished radon mitigation system on the side of an Iowa suburban home](/images/features/finished-radon-mitigation-system-with-white-pvc-pi.webp) Client Verification ## Reviews From Local Homeowners starstarstarstarstar > "Half basement, half crawlspace. They handled both with one system." Gail H. · De Soto starstarstarstarstar > "They made the drive out and did it right. Good people." Tim A. · Rural Dallas County Read our reviews on Google open\_in\_new [https://search.google.com/local/reviews?placeid=ChIJRTO3QJee7ocRgEpZOJOW_-U →](https://search.google.com/local/reviews?placeid=ChIJRTO3QJee7ocRgEpZOJOW_-U) Local knowledge ## Experience With Mixed Foundations Local logistics ### Serving De Soto De Soto sits at the **I-80** and US Route 169 interchange west of the metro. We reach in-town homes and rural Dallas County properties with a quick trip down the interstate. Local homes ### Older Homes, Mixed Foundations The town grew up around the Rock Island railroad starting in 1868 and has stayed small. Many homes are older houses that were added onto, so a basement and a crawlspace often sit side by side. We seal crawlspaces with a heavy poly membrane and pull suction from beneath it, tied into the same fan as the basement point. Homes on private wells should test water as well as air. ### Local facts that shape the job - fact\_check De Soto is in Dallas County along Interstate 80 and uses ZIP code 50069. (en.wikipedia.org) [https://en.wikipedia.org/wiki/De_Soto,_Iowa →](https://en.wikipedia.org/wiki/De_Soto,_Iowa) - fact\_check The town got its start in 1868 with the Chicago, Rock Island and Pacific Railroad. (en.wikipedia.org) [https://en.wikipedia.org/wiki/De_Soto,_Iowa →](https://en.wikipedia.org/wiki/De_Soto,_Iowa) - fact\_check The population went from 1,050 in 2010 to 915 in 2020. (en.wikipedia.org) [https://en.wikipedia.org/wiki/De_Soto,_Iowa →](https://en.wikipedia.org/wiki/De_Soto,_Iowa) Where we work ## Neighborhoods and Routes We Cover in De Soto ### Areas served - In-town De Soto - I-80 interchange area - Rural Dallas County ZIP codes we cover: 50069 ### Local landmarks - location\_onDe Soto water tower along I-80 - location\_onFormer Rock Island rail line ### How we get there De Soto sits at the I-80 and US Route 169 interchange west of the metro, a direct run down the interstate. Straight Answers ## De Soto Radon Questions ### Can one system cover a basement and a crawlspace addition? expand\_more Often, yes. We seal the crawlspace with a membrane, run suction beneath it and tie it into the same fan as the basement point, which is common in older De Soto homes that were added onto. ### Can radon come from my well near the I-80 corridor? expand\_more Yes, if the home is on a private well. Test the water as well as the air. We install waterborne radon systems when results call for it. ### Do you serve rural homes outside De Soto? expand\_more Yes. We serve in-town homes and rural Dallas County properties reached from the I-80 and US Route 169 interchange. Still have a question? Our support line answers 24 hours a day, 7 days a week. phone\_in\_talk (515) 218-7447 [tel:+15152187447 →](tel:+15152187447) Send a Question [/contact/ →](/contact/) Nearby service areas ## Also Serving Near De Soto - location\_on Adel [/service-areas/adel/ →](/service-areas/adel/) - location\_on Waukee [/service-areas/waukee/ →](/service-areas/waukee/) - All service areas [/service-areas/ →](/service-areas/) ![](/images/hero/radon-technician-loading-white-pvc-pipe-and-radon-.webp) 24/7 booking & support ## Book Radon Mitigation in De Soto Credentialed testing and mitigation with 24/7 booking, a post-mitigation test and a 5-year warranty on systems and installs. Request a Quote [/contact/ →](/contact/) phone\_in\_talk Call (515) 218-7447 [tel:+15152187447 →](tel:+15152187447) - verifiedIowa HHS credentialed - shield5-year warranty - fact\_checkPost-mitigation test