Certified radon testing companies in Gloucester County, NJ

✓ 1 company based in Gloucester County, from the NJDEP Radon Certification Program (retrieved 2026-07-17). Companies based in neighboring counties often serve here too — see the full New Jersey list.

Radon note for Gloucester County: 8 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:

Deptford Township
1225 homes tested · 27% ≥ 4 pCi/L
East Greenwich Township
790 homes tested · 25% ≥ 4 pCi/L
Greenwich Township
217 homes tested · 15% ≥ 4 pCi/L
Harrison Township
1322 homes tested · 31% ≥ 4 pCi/L
South Harrison Township
81 homes tested · 28% ≥ 4 pCi/L
Swedesboro Borough
654 homes tested · 28% ≥ 4 pCi/L
Wenonah Borough
472 homes tested · 37% ≥ 4 pCi/L
Woolwich Township
700 homes tested · 37% ≥ 4 pCi/L

Company	Location	Certifications	License #
Fran The Radon Man, LLC	Mantua, NJ	measurementmitigation	MEB93928, MIB92743

FAQs

How many certified radon testing companies are in Gloucester County?

1 company in the NJDEP Radon Certification Program is based in Gloucester County as of 2026-07-17. Companies based elsewhere in New Jersey also commonly serve the county.

Which Gloucester County towns have high radon potential?

NJDEP designates 8 Gloucester County municipalities as Tier 1 (high radon potential): Deptford Township, East Greenwich Township, Greenwich Township, Harrison Township, South Harrison Township, Swedesboro Borough, Wenonah Borough, Woolwich Township.

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