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Radon testing

Radon Testing in Damascus, 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 Montgomery 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 Damascus?

A radon test in Damascus 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 price applies to one Damascus dwelling. Book online or call to clarify a live-work address, separate unit or management-controlled entrance.

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 Damascus.

Radon testing for Damascus homes

A Montgomery County map cannot measure the air inside a Damascus home. A test at the particular property gives a buyer or owner the relevant radon result, whether the home is older, newly built or attached. Tell the technician about the lowest room that is or could be used regularly, including a basement bedroom, office or family space planned after the sale. Construction age and a previous result from a different property do not settle that question.

For a Damascus appointment, provide the full address and any driveway, gate, alarm or pet instructions needed for monitor placement and collection. The device remains undisturbed for at least 48 hours while occupants follow closed-house instructions. If the request includes a detached guesthouse, separately occupied lower unit or active construction, discuss it before booking so the testing scope and dates fit the property. Buyers should share their contract deadline when arranging the written report.

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

A suburban neighborhood among mature trees

01

Property-specific result

A county map or nearby test cannot answer for one Damascus residence.

02

Describe lower use

Point out a room that may be regularly occupied after purchase.

03

Clarify extra dwellings

Mention a guesthouse or separate apartment before booking.

Where we test in Damascus, and what to tell us

  • Reserve at Damascus and Damascus Village

    For a newer home, confirm the finished living space is ready for testing.

  • Kings Valley and Sweepstakes

    Give reliable driveway or entry instructions for both visits.

  • Meadows at Seneca Creek

    Describe any lower room or separate dwelling included in the request.

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 Damascus

Radon testing in Damascus, answered straight

Should a new Damascus home be tested for radon?

Yes. EPA recommends testing even if radon-resistant features were built in. A measurement of the completed home provides its actual result.

Can a detached guesthouse share the main home's test?

Tell us if it also needs a result. A separate dwelling may require its own testing scope, entry plan and price.

What if a buyer plans to finish a lower room?

Describe the planned regular use to the technician. A lower level suitable for occupancy can affect the measurement location.

How do I prepare a Damascus property?

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

Book a radon test in Damascus

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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