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Radon testing

Radon Testing in Chillum, MD

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

Schedule a radon test Call (703) 450-6398

What our customers say

From our Google reviews.

The whole experience was amazing! Everything was handled so professionally, quickly and so easy to have our house tested for radon.

Was professional and friendly and provided us with immediate information about our radon test. I would highly recommend this company.

How much does radon testing cost in Chillum?

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

We place the monitor

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

The monitor does the work

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

We collect it, read it, and write it up

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.

Radon testing for Chillum homes and apartments

For a Chillum radon test, the important address is the specific dwelling, not a Prince George's County map category. A reading from a neighbor's home or another apartment does not measure the unit you occupy or plan to buy. Tell the technician whether the request is for a house, townhouse or apartment and describe the lowest room that is or could be used regularly. That information helps determine a suitable placement and the correct testing scope.

Provide the complete Chillum address, building and unit number when applicable, and the person authorized to admit the technician. The monitor stays in the residence for at least 48 hours before collection. Ask residents and property staff to follow closed-house instructions and leave it undisturbed. For a managed building, confirm that the same access plan works at pickup. A separate apartment or unit needs to be discussed before booking rather than assumed covered by one result.

Radon testing guidance: Maryland Department of Health radon guidance, EPA guide for home buyers and sellers.

A Maryland welcome sign beside a tree-lined road

Identify the dwelling

Give the building and unit number for an apartment or condo.

Access twice

The technician must return to the same residence to collect the monitor.

Protect conditions

Tell occupants and staff to keep the device undisturbed.

Where we test in Chillum, and what to tell us

Chillum Gardens and Oakdale Terrace
For an apartment, confirm the private unit and authorized entry.
Green Meadows and Bel Air Estates
For a house or townhouse, describe any lower usable room.
Sargent Knolls and nearby areas
Coordinate occupant schedules for placement and collection.

We only perform testing, not mitigation.

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.

Before you book in Maryland

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.

Radon testing near Chillum

Nearby

Radon testing in Chillum, answered straight

Can one Chillum apartment use another unit's radon result?

No. A result from another apartment cannot establish the level in the unit being tested. Identify the exact residence when booking.

What information is needed for a Chillum building test?

Provide the street address, building and unit number, entry instructions, and someone authorized to admit the technician on both visits.

Which room matters in a Chillum townhouse?

Describe the lowest room used or suitable for regular use, including a planned basement bedroom or office. The technician selects the placement under the testing protocol.

What should tenants do while the monitor is present?

Follow the closed-house instructions provided for the test and leave the monitor where it was placed for at least 48 hours. Report any disturbance to the testing team.

Book a radon test in Chillum

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