Home/Radon Testing/Baltimore County/Woodlawn, 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 Woodlawn 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 covers one Woodlawn house, townhouse, apartment or condominium residence. Book online or call with the exact address and identify any additional unit that would need a separate measurement.
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 Woodlawn.
EPA places Baltimore County in Zone 1, its category for counties with the highest predicted average radon potential. The map is a planning tool, not a reading for a Woodlawn address, and EPA recommends testing homes in every zone. A measurement inside the residence is the evidence to use. Before placement, identify the lowest level that could be occupied regularly and make that area available without assuming that nearby homes share the same result.
Baltimore County's 2021 Redistricting Manual recognizes Woodlawn as a traditionally known community and cautions that such community boundaries are not precise. Confirm the full service address rather than relying on a neighborhood label. For a house, townhouse, apartment or condominium, explain which dwelling needs the result, how its lower rooms could be used and who can provide access for placement and retrieval. If a listing, lease or association record uses a nearby locality name, copy the postal address exactly and add directions only as a supplement. For occupied properties, tell everyone in the household why the equipment must remain uncovered. For an empty dwelling, designate one keyholder and limit showings, cleaners and deliveries during the booked period. These details solve practical identification and custody questions without treating a fuzzy community outline as evidence about the building. A useful request identifies decision maker, dwelling and deadline in separate terms. The purchaser may need a contingency report, the property manager may hold keys, and the resident may be responsible for preserving conditions. Record each role instead of using one vague contact. If the street address has multiple entrances or suite identifiers, repeat the exact designation on the order. This creates a traceable chain from request through device collection while respecting the County's warning about informal community geography. Community ambiguity also affects search results and saved paperwork. Retain the confirmation email, verify that Woodlawn and Baltimore County appear with the correct street, and correct a mismatched locality before the visit. For a condominium, distinguish the unit door from a shared basement or garage. For a townhouse, specify whether a lower floor belongs exclusively to the household. For a detached property, mention any occupied in-law suite. These distinctions are more dependable than neighborhood shorthand. Save the technician's confirmation beside the deed, lease or resale documents so later readers can distinguish the tested premises from informal labels such as Colonial Village or Featherbed.
Local background: Baltimore County Redistricting Manual, 2021, Maryland Department of Health radon guidance, EPA Map of Radon Zones.

01
The County says traditionally known community boundaries are not precise. The complete street address establishes the service location, while the home's own layout guides the measurement plan.
02
A result from a neighboring house or another unit cannot establish the concentration in the booked dwelling. Identify the exact residence and test that space.
03
A room need not be finished today to matter. Tell the technician if a lower space could later serve as a bedroom, office, playroom or other regularly occupied area.
Where we test in Woodlawn, and what to tell us
Colonial Village, Dorset Gardens
Because Baltimore County treats community names as useful but imprecise, provide the complete Woodlawn address for either area. Describe the lowest room that could support regular activity, even when it is currently used for storage.
Rolling Road Estates, Woodbridge Valley
If the address has a separate living area or a unit under different control, state which residence is included. Arrange keys and permission for both technician visits before the monitor is placed.
Featherbed, Kernan's Square
Choose a testing period without moving work or renovation around the intended low-level room. Keep the device undisturbed and report any event that changes the agreed conditions.
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.
Baltimore County says community boundaries such as Woodlawn's are not precise. The complete address confirms the property to be tested and prevents a neighborhood name from being mistaken for a service boundary.
No. That result documents the unit where the device was placed. Request a separate measurement for the Woodlawn residence involved in your sale, lease or household decision.
Yes, if the room could be used regularly after finishing or reconfiguration. Describe that intended use so the technician can evaluate the correct level under the placement guidance.
Confirm the exact dwelling, obtain permission, and arrange entry for placement and retrieval. Tell occupants where the device will remain so it is not moved or covered during the measurement.
Book online or call (703) 450-6398.
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NextDay Inspect
46179 Westlake Dr, Ste 200, Sterling, VA 20165
(703) 450-6398