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Home/Radon Testing/Washington County/Hagerstown, MD
Radon testing
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 Washington County
A radon test in Hagerstown 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 Hagerstown residence is covered; supply unit, parking and entry instructions.
Day 1
Drop-off
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
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
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 Hagerstown.
Washington County's radon map places the area in a higher predicted-potential category, but it cannot give the result for a Hagerstown address. Measure the house or apartment involved in the purchase or ownership decision. Tell the technician whether a basement bedroom, office or family room is used regularly or could be used after the sale. In a divided building, a result from another apartment or a shared area does not stand in for the booked residence.
Give the Hagerstown testing team the full street address, apartment number if needed, and access instructions that work for both placement and collection. The monitor remains undisturbed for at least 48 hours while residents follow closed-house instructions. If a tenant, agent, shop operator or building desk controls entry, coordinate the two visits in advance. Schedule moving or lower-level repairs outside the measurement period and share any purchase deadline before choosing dates.
Radon testing guidance: Maryland Department of Health radon guidance, EPA radon-zone map guidance.
01
A Washington County category cannot measure one Hagerstown home.
02
Explain whether a basement room will be used regularly.
03
Identify the private unit and arrange two visits.
Where we test in Hagerstown, and what to tell us
City Center and Potomac-Broadway
In a mixed-use building, identify the residence and its entrance.
South Prospect and City Park area
Coordinate residents or an agent for placement and collection.
Oak Hill and North End residences
Describe the home's present lower-room layout.
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.
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.
No. The county category describes predicted potential; a test inside the Hagerstown residence gives its own reading.
No. Identify the private unit that needs the result and arrange authorized access for that residence.
Tell the technician about the lower room and its planned regular use. That information helps determine placement.
Allow for placement, at least 48 hours of measurement, collection and the written report. Share the deadline when booking.
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
