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Home/Radon Testing/Baltimore County/Owings Mills, 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 Baltimore County
A radon test in Owings Mills 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 standard residential rate covers one Owings Mills dwelling. Book online or call with the unit, entry procedure and scope when the address includes multiple residences.
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 Owings Mills.
EPA lists Baltimore County in Zone 1. This county prediction supports testing in Owings Mills but cannot identify the radon level at one street address. A monitor in the residence supplies the usable evidence. Explain how the lowest accessible floor is used and identify an unfinished room that could later become regularly occupied.
Baltimore County's Owings Mills master plan lists historic sites within the Growth Area, including McDonogh Station, Old Owings Mills Station and St. Thomas Church properties. Those are named-site and Growth Area references only; they do not make nearby homes historic or indicate any indoor condition. Use the current property record and layout. Distinguish a house from an individual apartment or condominium, name the person who can grant entry, and provide any gate or management process. For a transaction, map placement, retrieval and report delivery against the deadline. For an occupied home, tell residents how to protect the equipment. For a vacant one, coordinate showing and maintenance schedules with a single keyholder. Named stations and church properties are useful landmarks in the master plan, not evidence that a nearby residence shares their vintage or design. For a complex with several buildings, include the building number, unit, entrance and intercom name. Ask management about visitor hours before selecting retrieval time. For a detached listing, coordinate alarm, pets and lockbox ownership with the agent. For an inherited or corporate-owned property, confirm the representative's authority in advance. These concrete identifiers reduce wrong-door risk and keep the Growth Area narrative separate from the indoor measurement made for one household. A landmark-based direction can supplement navigation but should never replace the building and unit identifiers that appear on the report and determine the measured residence.
Local background: Baltimore County Owings Mills master plan, Growth Area historic sites, Maryland Department of Health radon guidance, EPA Map of Radon Zones.
01
The County plan lists McDonogh Station, Old Owings Mills Station and St. Thomas Church properties. Their presence does not classify every Growth Area residence.
02
The term provides land-use context and does not establish a house's age, construction, foundation or indoor radon concentration.
03
Record the desk, gate, elevator or key procedure for both technician visits and identify a backup contact if the primary person becomes unavailable.
Where we test in Owings Mills, and what to tell us
New Town
For an apartment, condominium or townhouse, name the exact residence and any management contact. A development-wide label or another unit's reading does not answer for the booked household.
Owings Mills Reserve, Lyonswood
Arrange keys to lower rooms and explain whether a separate entrance serves the same family or another dwelling. The technician can then confirm authorized placement.
Red Run
Choose dates clear of moving, mechanical work and renovations. If the property is listed, coordinate showings so visitors do not cover, unplug or relocate the device.
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 master plan names particular historic sites. Growth Area location alone does not give a residence historic status or describe its construction.
Provide the full unit, gate or desk procedure, parking or elevator instructions when applicable, and a contact authorized to admit the technician for both visits.
No. It documents the residence and location where the device operated. Your Owings Mills unit needs its own defined test and authorized access.
Inform agents and visitors that the device must remain untouched, avoid activity that changes the agreed conditions, and report any accidental disturbance to the technician.
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
