How much does radon testing cost?

Radon testing costs vary by property size and type and location. Contact Radon Test DMV at 202-930-1797 for a fast, free quote in Virginia, Maryland, or Washington DC.

How long does a radon test take?

A standard radon test typically runs for 48 hours of continuous monitoring, with results available shortly after the test period ends.

What radon level is considered dangerous?

The EPA recommends taking action to reduce radon when levels reach or exceed 4.0 pCi/L. Levels between 2.0 and 4.0 pCi/L may also warrant mitigation.

Why is radon testing important in real estate transactions?

Radon testing protects buyers and sellers by identifying a serious health hazard before closing. Many real estate contracts in VA, MD, and DC include a radon contingency.

Do you serve my area?

Radon Test DMV provides radon testing throughout Virginia, Maryland, and Washington DC. Call 202-930-1797 to confirm service in your location.

Service Area

Professional Radon Testing Across Virginia, Maryland & Washington DC

Radon Testing DMV provides certified, accurate, and fast radon testing services throughout the Washington Metropolitan Area. Our NRSB‑Certified Radon Measurement Specialists use professional‑grade Airthings Pro continuous radon monitors to deliver reliable results for homeowners, buyers, sellers, and real estate professionals.

Whether you’re preparing to buy a home, listing a property, or simply ensuring your family’s safety, we proudly serve communities across Northern Virginia, Maryland, and Washington DC.

Our Service Areas

We provide radon testing throughout the region, including:

Virginia

Loudoun County – Ashburn, Leesburg, Sterling, Purcellville
Fairfax County – Fairfax, Reston, Herndon, McLean, Vienna
Arlington, VA – Ballston, Clarendon, Rosslyn, Crystal City
City of Alexandria – Old Town, Del Ray, West End
Prince William County – Manassas, Woodbridge, Bristow, Gainesville

Maryland

Montgomery County, MD – Bethesda, Rockville, Potomac, Silver Spring
Frederick County, MD – Frederick, Urbana, Middletown, New Market

Washington, DC

Washington, DC – All 8 Wards including Capitol Hill, Georgetown, Shaw, Petworth, Navy Yard

Why Radon Testing Matters in the DMV Region

The Washington Metropolitan Area is known for elevated radon potential, with many counties classified as EPA Zone 1 — the highest‑risk category. Radon levels vary house‑to‑house, even on the same street, making professional testing essential.

Common factors in the region include:

Granite‑rich and uranium‑bearing soil
Widespread basement and crawl‑space construction
Older homes with foundation settling
Dense urban row homes and townhomes

The only way to know your radon level is to test.

Our Radon Testing Services

We provide certified radon testing for:

Residential homes
Condos & townhomes
Real estate transactions
Pre‑listing inspections
Post‑mitigation verification
New construction testing

All tests use Airthings Pro Continuous Radon Monitors for accurate 48‑hour results.