NRPP #115300-RMP
48-Hour Testing
Montgomery County Based
Radon Testing Service Areas
RADON & CO is based in Montgomery County and provides residential and commercial radon testing across the county, with select service in DC, Northern Virginia, Howard County, and nearby areas.
🔎
Montgomery County
$125 flat rate. Same NRPP-certified 48-hour test everywhere in the county.
Montgomery County (all areas)RockvilleBethesdaSilver SpringGaithersburgGermantownPotomacChevy ChaseKensingtonNorth BethesdaWheatonOlneyTakoma ParkDerwoodClarksburgAspen HillBurtonsvilleColesvilleMontgomery VillageNorth PotomacDamascusPoolesvilleCabin JohnGarrett ParkGlen Echo
Washington DC, Northern Virginia, Howard County & Frederick
Flat rate by area: $150-$225. See full pricing by area.
Don't just take our word for the area — see the numbers
We publish real average radon readings by zip code across every area we serve, built from our own NRPP-certified tests. Search your zip code and see what we're actually finding.