# Radon Mitigation and Testing in Highland Park / Oak Park, Des Moines > Radon testing and mitigation for Highland Park and Oak Park homes. Sump pit sealing, floor crack sealing and first-time buyer support. 5-year warranty. URL: https://radonmitigationdesmoines.com/service-areas/highland-park-oak-park/ Des Moines neighborhood: Highland Park / Oak Park # Radon Mitigation and Testing in Highland Park / Oak Park, Des Moines The trusted local radon experts in Highland Park / Oak Park since 2016. Schedule An Estimate [/free-estimate/ →](/free-estimate/) Call (515) 218-7447 [tel:+15152187447 →](tel:+15152187447) Last updated October 27, 2026 ![Radon Mitigation Des Moines service van parked in front of a central Iowa home](/images/misc/radon-mitigation-des-moines-se-1793203436759-ee84j6.webp) - Certified Radon Techs - 5-Year Warranty - 24/7 Support Know the risk ## Radon Risks in Highland Park / Oak Park Homes High radon is the norm in Central Iowa, not the exception. Here is what that means in Highland Park / Oak Park. - 01 ### EPA Zone 1 About 71% of Iowa homes test above 4.0 pCi/L. Your neighbor's number says little about yours. A 48-hour test is the only way to know. - 02 ### Worse in Winter When the furnace runs and the ground freezes, warm air rises out of the house and pulls soil gas in through the slab. - 03 ### Delays Closings A high radon test during inspection can hold up a sale. We test and install inside your inspection window. Our services ## Radon Services in Highland Park / Oak Park Radon testing, mitigation, new construction, commercial systems and maintenance in Highland Park / Oak Park. Residential Radon Mitigation We size the system to your foundation: basement sub-slab, crawlspace, exterior or vapor intrusion. View service → [/residential-radon-mitigation/ →](/residential-radon-mitigation/) Radon Testing We run CRM, short-term, long-term, real estate and post-mitigation tests with credentialed testers. View service → [/radon-testing/ →](/radon-testing/) Commercial Radon Systems We test and mitigate schools, HUD multifamily, offices, warehouses and vapor intrusion sites. View service → [/commercial-radon-systems/ →](/commercial-radon-systems/) New Construction Systems We rough in passive systems for builders, test after move-in and upgrade passive pipes to active. View service → [/new-construction-radon-systems/ →](/new-construction-radon-systems/) Radon System Maintenance We fix fan alarms, error codes, pipes and joints, and maintain and inspect radon systems from any installer. View service → [/radon-system-maintenance/ →](/radon-system-maintenance/) Air Duct Cleaning We clean the supply and return ducts in Des Moines homes and leave a written quote before any work. View service → [/air-duct-cleaning/ →](/air-duct-cleaning/) Every job completed by Radon Mitigation Des Moines [/ →](/) in Highland Park / Oak Park gets a system designed for the foundation, installed by certified technicians and tested when it is done. Why choose us ## Why Highland Park / Oak Park Homeowners Choose Us On every job in Highland Park / Oak Park you get: - Foundation-matched design - Credentialed installers - Clean, quiet installs - Post-mitigation test on every system - 5-year warranty on systems and installs - 24/7 booking and support ![Technician sealing cracks in an older Des Moines basement](/images/features/radon-technician-sealing-cracks-in-an-older-des-mo.webp) How it works ## How We Lower Radon in Highland Park / Oak Park Homes Most homes are finished in one day. We test every system before we call it done. 1. 1 ### Test A 48-hour continuous radon monitor test in your home, or send us an existing result. ![Continuous radon monitor on a small table in a Des Moines home](/images/misc/continuous-radon-monitor-sitting-on-a-small-table-.webp) 2. 2 ### Design We review your foundation, slab sections and sump, then pick suction points and routing. ![Technician running pressure field extension diagnostics in a basement](/images/features/technician-running-pressure-field-extension-diagno.webp) 3. 3 ### Install We install the system, seal the entry points and add a manometer. Most homes take one day. ![Finished radon mitigation system with white PVC pipe on the side of a home](/images/features/finished-radon-mitigation-system-with-white-pvc-pi.webp) 4. 4 ### Verify A post-mitigation test proves the level dropped. The system has a 5-year warranty. ![U-tube manometer on a radon pipe showing steady suction](/images/misc/close-up-of-a-u-tube-manometer-on-a-white-radon-pi.webp) Schedule An Estimate [/free-estimate/ →](/free-estimate/) Reviews ## Reviews From Highland Park / Oak Park Homeowners ★★★★★ > "Our Beaverdale house tested high during the inspection and the sale was on hold. They got a sub-slab system in quickly, the post-test came back low, and we closed on time." Megan T. · Des Moines ★★★★★ > "Our new build in Waukee came with a passive pipe but still tested above 4. They added the attic fan and manometer in one visit and explained the readings." Chris L. · Waukee ★★★★★ > "Fan alarm went off on a Sunday night. I called the 24-hour line, got answers right away and a fan replacement booked for Monday." Dana R. · Urbandale Read our reviews on Google → [https://search.google.com/local/reviews?placeid=ChIJRTO3QJee7ocRgEpZOJOW_-U →](https://search.google.com/local/reviews?placeid=ChIJRTO3QJee7ocRgEpZOJOW_-U) Local knowledge ## Radon in Highland Park / Oak Park RADON HERE ### Helping First-Time Buyers Many homes here sell to first-time buyers, and radon often comes up during the inspection. We test inside the contingency window and explain the result in plain terms, so you can negotiate with real numbers. If the result is high, a standard sub-slab system with sump and crack sealing usually brings it down. We can often install before closing and run the post-mitigation test the lender or buyer wants to see. LOCAL HOMES ### Common Issues in Mid-Century Homes **Open sump pits.** Many basements have open or loosely covered sump pits tied to drain tile. We install airtight, gasketed lids. **Unsealed floor cracks.** Mid-century slabs often have cracks and a gap at the floor-wall joint. We seal them as part of every install. **Simple layouts.** Many homes here have a single basement slab, which often means one suction point does the job. Service areas ## Where We Work in Highland Park / Oak Park ### Property types - Early to mid-20th century single-family homes - Small commercial and retail corridors ### Landmarks - Highland Park business district - McHenry Park - Riverview Park ### Main routes - Euclid Ave (US-6) - 6th Ave - NE 14th St FAQ ## Radon Questions From Highland Park / Oak Park ### Yes. It's one of the biggest entry points. We seal it with an airtight lid you can still see through. ### Ask for a quote right away. Many sellers agree to fix it or credit the cost. We can often install before closing. ### Yes. Crack and joint sealing is part of every install. ### Yes, including the Euclid Ave and 6th Ave corridors and the areas near McHenry and Riverview Parks. ### Send your result and photos, or call (515) 218-7447 any time. Still have a question? Our support line answers 24 hours a day, 7 days a week. Schedule An Estimate [/free-estimate/ →](/free-estimate/) Call (515) 218-7447 [tel:+15152187447 →](tel:+15152187447) Service areas ## Other Des Moines Neighborhoods We Serve - Beaverdale [/service-areas/beaverdale/ →](/service-areas/beaverdale/) - East Village [/service-areas/east-village/ →](/service-areas/east-village/) - Drake [/service-areas/drake/ →](/service-areas/drake/) All service areas → [/service-areas/ →](/service-areas/) Des Moines & Central Iowa ## Get Radon Mitigation in Highland Park / Oak Park Scheduled Schedule An Estimate [/free-estimate/ →](/free-estimate/) Call (515) 218-7447 [tel:+15152187447 →](tel:+15152187447)