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Radon testing

Radon Testing in Towson, 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

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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 Towson?

A radon test in Towson 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. One residential appointment covers one Towson dwelling. Include apartment number, desk procedure and parking directions for managed buildings. A buyer using a contingency should confirm both appointments early enough to receive the report before the decision deadline.

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 Towson.

Radon testing for Towson homes and managed residences

A Towson radon measurement belongs to the specific Baltimore County house, townhouse or private unit being tested. A county zone and another address's result cannot establish the indoor level in that residence. Describe the lowest room used or suitable for regular occupancy, including a basement office, bedroom or family room planned after a purchase. In a building with multiple homes, give the exact private unit rather than a common-area location.

For a Towson appointment, provide the full address and an owner, resident, manager or agent who can authorize both visits. Downtown managed buildings may require parking, desk or elevator instructions for placement and collection. The device remains undisturbed for at least 48 hours under closed-house instructions. Keep showings, repairs and cleaning from disrupting the test room and share any settlement or lease deadline early enough for the written report.

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

Glass domes of Towson Town Center at sunset

01

A result for this home

A Baltimore County map or another address cannot measure the booked Towson residence.

02

Describe lower rooms

Include rooms used regularly or planned for regular use after a purchase.

03

Protect both visits

Arrange entry for placement and pickup, and keep the monitor undisturbed.

Where we test in Towson, and what to tell us

  • Stoneleigh and Anneslie

    For a house, explain lower-room use and planned changes.

  • Rodgers Forge area

    Coordinate a keyholder and protect the monitor through pickup.

  • Downtown Towson

    For a managed residence, give the building, private unit and desk procedures.

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 Towson

Radon testing in Towson, answered straight

Does a Baltimore County radon map tell me my Towson home's level?

No. The map describes area potential. Only a measurement inside the particular residence provides its indoor result.

Which lower room matters for a Towson radon test?

Tell the technician about the lowest room used or suitable for regular occupancy, including a room planned for use after purchase. The technician selects the test position under the testing protocol.

Does a Towson building common-area test cover a condo?

No. Test the particular private dwelling needing the result; a common-area reading cannot establish its indoor level.

What details should I give for a downtown building?

Provide the building and unit number, authorized contact, and parking, desk or elevator instructions for both visits.

Book a radon test in Towson

Book online or call (703) 450-6398.

Schedule a radon test Request a price

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46179 Westlake Dr, Ste 200, Sterling, VA 20165
(703) 450-6398

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