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Radon testing

Radon Testing in College Park, 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 College Park?

A radon test in College Park 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 standard home-test rate covers one College Park residence. Book online or call with the unit, owner or manager contact and scope when several tenants or dwellings are involved.

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 College Park.

Radon testing for College Park homes and rentals

College Park buyers, owners and rental property contacts need a result from the exact residence. A Prince George's County map or another unit's report cannot determine the indoor radon level in a particular house, townhouse or apartment. Describe the lowest room that is or could be used regularly, including a basement bedroom or work area. If a house is divided into separate rentals, identify which dwelling is being tested before scheduling.

A College Park radon appointment needs an authorized entry contact for monitor placement and collection after at least 48 hours. Provide the full address, building or unit number, and any lockbox or property-manager instructions. Tell occupants about closed-house conditions and ask them not to move the device. Schedule outside turnover, cleaning or repair activity that could disturb the test area. Share a purchase deadline if the written report is needed for a transaction.

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

The University of Maryland sign in College Park

Name the exact rental or home

One building can contain more than one residence.

Coordinate occupants

Residents need the testing instructions before the monitor is placed.

Avoid turnover disruption

Plan the 48-hour period around cleaning and repairs.

Where we test in College Park, and what to tell us

Old Town and Calvert Hills
For a divided house, identify the booked dwelling and lower-room use.
Berwyn, Branchville and Lakeland
Provide the resident or manager contact for both visits.
Daniels Park and Hollywood
Keep tenant turnover or repairs away from the test period.

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 College Park

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Radon testing in College Park, answered straight

Can one College Park test cover a divided rental house?

A standard appointment measures one residence. Tell us which unit needs a result and whether other separate dwellings should also be tested.

Who should arrange access to a tenant-occupied unit?

Provide someone authorized to admit the technician for both placement and collection, and coordinate testing conditions with the occupants.

Should cleaning or moving continue during the test?

Avoid activity that could disturb the device or closed-house conditions. Choose dates outside turnover or tell the testing team about unavoidable work.

What if a buyer plans to use a basement bedroom?

Tell the technician about that planned regular use. The lowest level suitable for occupancy may determine the test location.

Book a radon test in College Park

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