Radon Testing & Mitigation in Washington
Washington, Missouri is located in Franklin County, an EPA Radon Zone 1 area with high potential for elevated indoor radon levels. Radon is a naturally occurring radioactive gas that can accumulate inside homes through foundation openings, sump systems, slab joints, and soil contact points.
Washington has a high concentration of established residential neighborhoods, including brick ranch homes, split-level construction, and newer subdivision developments. Full basement foundations are common throughout the city, increasing the importance of professional radon testing.
Because radon levels vary significantly from property to property — even within the same subdivision — testing is the only reliable way to determine indoor concentration. The EPA recommends mitigation when levels reach or exceed 4.0 pCi/L.
Professional 48-hour testing is recommended every two years and during real estate transactions.
County:
Franklin County
EPA Zone:
EPA Radon Zone 1
Nearby Areas Served:
Heading 3
Housing Notes
Residential construction in Washington commonly includes full basements with drain tile systems and sump pits. Older homes may have stone or block foundations, while newer subdivisions include poured concrete slabs and finished basements. Effective mitigation requires diagnostic evaluation to determine suction point placement and ensure compliant above-roof discharge clearances.
Our 3 Step Process to a Healthier Home
1
Schedule
Choose testing or a mitigation evaluation. We’ll confirm the next available time.
2
Inspect
We run the test or evaluate the structure for the right mitigation approach—clean, code-aware, and efficient.
3
Results + Plan
You’ll get clear results and next steps. If mitigation is needed, we provide a straightforward scope and schedule.