Certified radon testing companies in Morris County, NJ

Radon note for Morris County: 17 municipalities here are NJDEP Tier 1 (high radon potential). Testing is the only way to know your home's level — see your town's published test data:

• Chester Borough and Chester Township

  3537 homes tested · 46% ≥ 4 pCi/L

• Dover Town

  2687 homes tested · 33% ≥ 4 pCi/L

• Harding Township

  1270 homes tested · 41% ≥ 4 pCi/L

• Jefferson Township

  3892 homes tested · 32% ≥ 4 pCi/L

• Kinnelon Borough

  2759 homes tested · 27% ≥ 4 pCi/L

• Long Hill Township (Passaic Township)

  3856 homes tested · 27% ≥ 4 pCi/L

• Mendham Borough and Mendham Township

  4620 homes tested · 37% ≥ 4 pCi/L

• Mine Hill Township

  1026 homes tested · 26% ≥ 4 pCi/L

• Morris Plains Borough

  4838 homes tested · 31% ≥ 4 pCi/L

• Morris Township and Morristown Town

  10434 homes tested · 24% ≥ 4 pCi/L

• Mount Olive Township

  5536 homes tested · 37% ≥ 4 pCi/L

• Randolph Township

  7420 homes tested · 37% ≥ 4 pCi/L

• Riverdale Borough

  657 homes tested · 27% ≥ 4 pCi/L

• Roxbury Township

  5500 homes tested · 25% ≥ 4 pCi/L

• Victory Gardens Borough

  68 homes tested · 31% ≥ 4 pCi/L

• Washington Township

  5148 homes tested · 43% ≥ 4 pCi/L

• Wharton Borough

  1497 homes tested · 30% ≥ 4 pCi/L