Rhode Island Coverage

Washington County Radon Testing

Washington County — locally called South County — covers Rhode Island's southern coast and includes Narragansett, South Kingstown, Westerly, and the beach communities of the state's southern shore, along with inland towns like Exeter and Richmond.

Why radon testing matters in Washington County

Coastal geography does not exempt a home from radon. Many Washington County homes are built on well-drained sandy soil, but others sit on bedrock or on fill, and both can allow soil gas to migrate into the home. Testing gives homeowners a definitive answer instead of a guess based on location.

Municipalities we serve in Washington County

We provide radon testing throughout Washington County. Dedicated pages are available for the communities linked below; every other community listed is also served — call us to schedule.

Radon testing services in Washington County

EPA and Rhode Island guidance

The EPA recommends testing all homes for radon and considering action at 4 pCi/L or above. See understanding radon results, what to do about a high radon result, and Rhode Island radon information.

Washington County radon testing FAQs

New Shoreham (Block Island) requires ferry scheduling and additional lead time. Call us to discuss timing for island testing.

Request a radon test in Washington County

Call (401) 360-5888 or send a short request. We typically respond within one business day.

By submitting, you agree we may contact you about your request. See our Privacy Policy.

Washington County radon testing

Call Rhode Island Radon Testing or submit a short request form. We will get back to you as soon as we can.