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Radon testing

Radon Testing in Parkville, 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 Baltimore County

Schedule a radon test Call (703) 450-6398

What our customers say

From our customer reviews.

They conducted the test right away and kept me informed every step of the way.

Rachel RaphaelRadon testing
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They arrived the day after I called, on time, set up the Radon test and left within 5 minutes.

Catherine HRadon testing
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Everything was handled so professionally, quickly and so easy to have our house tested for radon.

Alma PrinceRadon testing
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They found elevated radon in the home and numerous issues on the home inspection report which were remedied before I moved in.

Shawn McCallRadon testing
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Great service, very thorough inspection and highlighted items in a very approachable and organized manner.

Elizabeth Anne NewberryCustomer review
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How much does radon testing cost in Parkville?

A radon test in Parkville 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 home-testing rate applies to one Parkville residence. Give the complete unit and access information, and identify another household separately if it also needs measurement.

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.

National Radon Safety Board

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 Parkville.

Radon testing for Parkville homes and rentals

A Parkville radon result has to come from the home or private rental unit that needs the report. Baltimore County's map describes area potential, not the indoor air at one address. Describe the lowest room used or suitable for regular occupancy, such as a basement office, bedroom or playroom. If a building contains a separate lower apartment, identify the booked dwelling and whether the additional unit also needs a test.

For a Parkville appointment, provide the full address and a resident, owner or manager who can admit the technician for both monitor placement and collection. The device remains in place for at least 48 hours while occupants follow closed-house instructions. Keep children and pets from moving it, and schedule cleaning or repairs away from the test area. Buyers and landlords should share their deadline early enough for pickup and the written result.

Radon testing guidance: Maryland Department of Health radon guidance, EPA radon-zone map guidance.

Aerial view of a baseball field among trees

01

Measure the dwelling

A Baltimore County map cannot give one Parkville home's result.

02

Clarify extra units

A separate basement apartment may need its own scope.

03

Protect the device

Keep pets, children and work away from the monitor.

Where we test in Parkville, and what to tell us

  • Loch Raven Heights and Cub Hill

    Describe the lowest regularly usable room in the house.

  • Hillendale and Carney

    For a rental, coordinate the occupant and entry contact twice.

  • Harford Park

    Plan around pets, cleaning and repair work during monitoring.

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 Parkville

Radon testing in Parkville, answered straight

Does a Parkville neighbor's result tell me mine?

No. Indoor radon levels can differ. Test the residence you own, rent or plan to buy.

What if the basement is a future bedroom?

Tell the technician about that planned regular use, even if the room is not occupied now.

How should renters prepare?

Arrange access for placement and collection, follow closed-house instructions and leave the monitor undisturbed for at least 48 hours.

Can a pet enter the test room?

Keep pets from disturbing the monitor. Tell the testing team promptly if it has been moved or contacted.

Book a radon test in Parkville

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

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