Radon Measurement and Mitigation in Kansas and Missouri

Radon is a colorless, odorless, radioactive gas that forms from the natural breakdown of uranium in soil and rock. It can enter homes through cracks, sump pits, and foundation joints, so the only way to know your level is to test.

Long-term radon exposure is the second leading cause of lung cancer in the U.S. after smoking. Radon decays into radioactive particles you can breathe, which damage lung tissue over time, especially in lower levels of the home.

Kansas City sits on clay-heavy, uranium-bearing soils that trap gases. Many homes have basements or finished lower levels, and seasonal moisture and foundation settling create entry points—so radon testing is common for KC homeowners and real estate professionals.

The EPA action level is 4.0 pCi/L. At or above 4.0 pCi/L, mitigation is recommended. Many homeowners in the Kansas City market also mitigate between 2.0–3.9 pCi/L to reduce long-term health risk and improve resale value.

KC Pier uses continuous electronic radon monitors (CRM) that run for at least 48 hours, record hour-by-hour levels, detect tampering, and provide fast, accurate results suitable for homeowners and real estate transactions.

Most radon tests take 48 hours. We place the monitor, it records for two days, and we deliver the report right after pickup. This meets most Kansas City real estate timelines.

Tests are typically placed in the lowest livable level, such as a basement or finished lower level, because radon levels are usually highest there and that is where EPA guidelines recommend testing.

KC Pier most often installs a Sub-Slab Depressurization (SSD) system: a suction point is created beneath the slab, a fan pulls radon-laden air from under the home, and the gas is vented safely above the roofline. This creates negative pressure so radon cannot enter the living space.

A properly installed mitigation system can reduce radon levels by up to 99% and typically brings levels well below the 4.0 pCi/L EPA guideline. KC Pier performs a post-mitigation test to verify performance.

Most KC homes fall in the $900–$1,500 range. Pricing depends on the foundation type (basement, slab, crawl), home layout, vent routing, number of suction points, and electrical needs. KC Pier provides clear, upfront pricing.

Most installations take 3–5 hours and can be completed in a single visit. Homeowners can typically remain in the house during the install.

Yes. In Kansas City, levels can rise in winter and during wet seasons because of closed-house conditions and clay soils holding moisture. This is why periodic retesting is recommended.

Possibly. Slab-on-grade and crawl space homes in the KC area can still have elevated radon. Radon can enter through slab cracks, utility penetrations, sump pits, or exposed soil in crawls. The only way to know is to test.

DIY kits exist, but professional CRM testing from KC Pier is faster and more reliable, includes tamper checks, and provides documentation that buyers, sellers, and inspectors recognize in Kansas City real estate transactions.

You should still retest every 1–2 years to confirm that the fan is working and the system is still keeping levels low. KC Pier can service, upgrade, and re-test existing systems.

Yes. KC Pier installs radon systems with warranties on the system and fan, and many systems are transferable to the next homeowner, which is helpful for Kansas City real estate sales.

Yes. Because KC Pier also performs foundation repair and basement waterproofing, we can route vent lines cleanly, seal sump pits properly, avoid conflicts with drain tile, and recommend the right order of repairs for the best long-term result.

KC Pier routes vent piping to be as discreet as possible, typically along the side or rear of the home and above the roofline, and installs neat, labeled components that home inspectors and buyers recognize.

Retest every two years, after finishing the basement, after foundation or waterproofing work, and after installing a mitigation system to confirm it is performing. Radon levels can change over time.

KC Pier is a local Kansas City contractor serving both Kansas and Missouri, offering professional electronic radon testing, fast mitigation, EPA-recommended SSD systems, clean vent routing, transferable systems for real estate, and combined expertise in foundations and basements—which signals real-world, local authority to both homeowners and search engines.