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Home/Radon Testing/Prince George's County/Chillum, MD
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 Prince George's County
A radon test in Chillum 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 residential fee applies to one Chillum dwelling. Include building and apartment identifiers, and disclose any separately occupied space that may require its own service.
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 Chillum.
EPA classifies Prince George's County as Zone 2. The map estimates county potential and does not provide an address-level answer for Chillum. EPA recommends testing across all zones. Make the lowest level that could be occupied regularly accessible, identify any separate unit, and base the household or transaction decision on the measurement collected inside that residence.
County planning describes part of Carole Highlands within Greater Chillum, specifically south of the power-line easement, as including single-family homes in Park Lawn and Riggs Park Estates. Elsewhere in Chillum Gardens, Oakdale Terrace, Green Meadows, Bel Air Estates, Sargent Knolls, Carrington and Miller Estates, use the complete address and actual dwelling layout to prepare the appointment. Closely spaced communities and varied postal labels make building and unit identifiers especially useful. In a multifamily property, distinguish the private apartment from hallways, storage and mechanical rooms. Explain any separately occupied space and identify the lowest room that could support regular use after a move or renovation. Residents should know how to protect the monitor, while managers should coordinate permission and keys. Vacant properties need normal operation and a showing schedule that preserves test conditions. Keep the completed Chillum report with the exact unit information.
Local background: Maryland Department of Health radon guidance, EPA Map of Radon Zones.
01
If the address is south of the power-line easement, include that detail as a route note and still confirm the numbered dwelling.
02
Neighborhood terminology may vary, so repeat the street, building and unit details in the booking and final property file.
03
Show which rooms belong to the residence and keep common areas separate from the test unless they are independently authorized and scoped.
Where we test in Chillum, and what to tell us
Chillum Gardens, Oakdale Terrace
Use the full postal address to separate the booked home from overlapping community names. In Carole Highlands, add directions relative to the power-line easement only when they help identify the correct residence.
Green Meadows, Bel Air Estates
For attached or divided properties, specify which household needs the measurement. Shared access points do not make neighboring dwellings part of a single test. When bilingual household instructions are useful, designate one contact to confirm that every occupant understands the equipment-custody steps and collection time.
Sargent Knolls, Carrington, Miller Estates
Coordinate residents, agents and managers before placement. Postpone repairs or deliveries that would disturb the selected area or alter ordinary building operation. Distinguish a service alley, shared driveway or rear stair in route notes without treating access geometry as housing evidence.
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.
Provide the full street and unit information, then add the easement as a directional reference if useful. Also identify the lowest room that could be used regularly.
Closely spaced units have separate indoor environments. Consistent building and unit identifiers connect placement, pickup and the report to the correct residence.
A reading documents the location where the monitor operated. A common basement does not automatically represent a private dwelling, so clarify the decision and requested premises before scheduling.
Discuss the work before placement when possible. If unexpected entry or ventilation changes occur, do not move the device; record the timing and tell the technician at collection.
Book online or call (703) 450-6398.
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NextDay Inspect
46179 Westlake Dr, Ste 200, Sterling, VA 20165
(703) 450-6398
