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Radon testing

Radon Testing in Severn, 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 Anne Arundel County

Schedule a radon test Call (703) 450-6398

What our customers say

From our customer reviews.

Great work! Radon test was smooth and we got our results back on the same day. Highly recommend!

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

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

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

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

How much does radon testing cost in Severn?

A radon test in Severn 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 rate is for one Severn dwelling. Book online or call with the service address, unit number and person authorized to provide entry.

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 Severn.

Radon testing for Severn houses, townhouses and rentals

Radon testing in Severn should measure the particular Anne Arundel County home or private unit that needs a report. A county zone and a nearby home's result cannot establish its indoor air level. Tell the technician about the lowest room used or suitable for regular occupancy, including a basement bedroom, office or family space planned after purchase. If there is a separately occupied lower unit, identify each dwelling needing a result before booking.

Provide the complete Severn address, any unit number and a person authorized to admit the technician for placement and collection. A tenant, agent or property manager may need to coordinate both visits. The monitor remains undisturbed for at least 48 hours while occupants follow closed-house instructions. Keep moving, cleaning and repair work away from the test room, and tell the team about a purchase or lease deadline when requesting dates.

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

Aerial view of wooded neighborhoods in Severn, Maryland — Photo: Ken Lund, Wikimedia Commons · CC BY-SA 2.0

A result for this home

A Anne Arundel County map or another address cannot measure the booked Severn residence.

Describe lower rooms

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

Protect both visits

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

Where we test in Severn, and what to tell us

Jacobs Forest and Piney Orchard
Describe the lowest usable room and any planned change in its use.
Severn Woods and Disney Estates
Give the full address and a reliable contact for both visits.
Elmhurst
Identify any separate rental unit and coordinate occupant access.

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 Severn

Nearby

Radon testing in Severn, answered straight

Does a Anne Arundel County radon map tell me my Severn 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 Severn 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.

What if the Severn property has a separate lower apartment?

Tell the testing team which residence needs the report and whether the other unit also needs testing; separate dwellings may require separate scope and access.

Can work continue during the 48-hour Severn test?

Schedule repairs and moving so they do not disturb the monitor or closed-house conditions. Report any interruption promptly.

Book a radon test in Severn

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