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Radon testing
A continuous monitor on the lowest level that could be used regularly, read every hour for at least 48 hours. The written result comes the day we collect it.
4.9 rating, over 4,000 reviews NRSB-certified technicians Serving all of Prince George's County
Schedule a radon test Call (703) 450-6398 Find your community
Nine communities across the county have a page of their own with local detail. The test, the price and the technicians are the same in every one of them, so you can also book straight from here.
County planning describes Carole Highlands within Greater Chillum as including a section of single-family homes in Park Lawn and Riggs Park Estates.
A County historic-sites plan says Landover Hills had model homes ready by 1940 and early houses ranged from simplified Colonial Revival to small ranch and traditional gable-roof forms.
A County plan says Suitland developed after the Civil War as a community with a post office in 1878, stores, blacksmith shops, a hotel, and a Methodist church.
College Park identifies Old Town College Park as a local historic district and Calvert Hills as a National Register historic district.
Greenbelt says it was built as a federal venture in housing and planned with interior walkways, underpasses, inner courtyards, and a mall-type shopping center.
Clinton is an unincorporated Prince George's County community.
Prince George's County Planning identifies Fort Washington as a community whose plan will define a boundary and capture its shared identity.
A radon test in Prince George's County is $185, or $175 when it is added to a home inspection. That is the whole price: both visits, the monitor for the full 48 hours, and the written report with every hourly reading in it. The listed service is for one residence. Several condominium units, rental houses or buildings require an address list and confirmed quote.
Day 1
Drop-off
A technician places it on the lowest level that could be used regularly, following EPA placement limits and the intended use of the space, inside a two-hour arrival window. With a home inspection, placement happens during the inspection visit.
48 hours
The house stays closed
For a short-term real-estate test, EPA guidance calls for closed-building conditions for at least 12 hours before the test and throughout the measurement. Windows stay closed, exterior doors open only for normal entry and exit, and the monitor logs hourly readings that help document the test conditions during the minimum 48-hour measurement.
Day 3
Pick-up and report
A technician picks the monitor up in another two-hour window and pulls the full record on the spot. The written report reaches you the same day.
NRSB-certified technicians. Our own team, certified by the National Radon Safety Board, not a subcontractor.
EPA testing guidance. Placement, closed-house conditions and the 48-hour minimum follow it, and your average is read against the EPA action level of 4.0 pCi/L.
Continuous monitors. Airthings Corentium Pro instruments, logging every hour for the whole test.
Appointment times are requests until our team confirms them. What the number means, how to prepare the property and the eight questions everyone asks are on the radon testing page; this page is about Prince George's County.
EPA places Prince George's County in Zone 2, a regional potential estimate. That color cannot answer for a Chillum apartment, Bowie residence or Fort Washington address. Homes with elevated levels occur in every zone, so use the property's indoor measurement.
The community links are grouped inside the Beltway, along the Route 1 and College Park corridor, around Bowie and Laurel, and in southern Prince George's County. Use the group that matches the address, then identify the residence and its lowest level that could be used regularly.
Local background: EPA Map of Radon Zones raw county data, EPA Map of Radon Zones guidance, Bowie local source, Chillum local source, Landover local source, Suitland local source, College Park local source, Greenbelt local source, Laurel local source, Clinton local source, Fort Washington local source.
01
Prince George's County's Zone 2 color helps public agencies compare broad potential. It cannot forecast a Chillum, College Park, Bowie or Fort Washington address; the monitor record inside that dwelling is the useful evidence.
02
For a condominium or rental building, provide the unit number, occupant contact and any desk, key or parking instructions before placement.
03
Windows stay shut from 12 hours before setup through the 48-hour run. Normal entry is fine, but exterior doors should not be left open.
We do not install radon systems, so we have nothing to gain from your number. If the result is at or above the EPA action level of 4.0 pCi/L, you choose who fixes it. Once the system is in, we can test again and tell you what it reads.
Maryland's residential disclosure framework includes radon among the hazardous or regulated materials covered by an owner's actual knowledge for certain single-family residential property of four or fewer units. The statute has enumerated exemptions and does not itself require a radon test. County and municipal requirements may differ, so check the rules for the property's location and type before relying on an existing result.
Md. Real Property section 10-702. Current as of September 2026. General information, not legal advice.
Zone 2 is a broad estimate of potential across the county. It neither clears nor fails a particular Prince George's residence. Use the measured concentration from that home.
Chillum, Landover and Suitland appear in the inside-Beltway group; College Park and Greenbelt share the Route 1 group. Bowie and Laurel have another section, followed by Clinton and Fort Washington in the south. Choose the community for the property address, then confirm the individual residence and access contact for the appointment.
Start with the lowest floor that could be occupied regularly, even if it is unfinished today. In a condominium or rental, identify the exact unit rather than a shared building area. The technician confirms the monitor position.
Provide an address-and-unit inventory rather than one general property name. Include the occupant or building contact, usable lower levels and timing for each residence. The standard price covers one residence; the team will determine how many monitors and collection visits the larger assignment needs.
Book online or call (703) 450-6398.
Schedule a radon test Request a price
NextDay Inspect
46179 Westlake Dr, Ste 200, Sterling, VA 20165
(703) 450-6398
