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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 Montgomery County
A radon test in Montgomery Village 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 home-test rate covers one Montgomery Village residence. Book online or call to confirm unit access, facility authorization or a request involving several dwellings.
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 Montgomery Village.
EPA places Montgomery County in Zone 1. The county category indicates predicted potential but cannot tell a Montgomery Village resident what a device will record at home. Test the individual dwelling. Identify the lowest level that could be used regularly and distinguish rooms inside the unit from common spaces controlled by an association or facility.
The 2015 Montgomery Village Master Plan identifies apartments, condominiums, townhouses, single-family homes and a senior assisted-living facility in the Village. That printed-page inventory documents a Village-wide mix in 2015, not the classification of one building. State exactly which form describes the booked residence. Apartment and condominium clients should provide building, unit and management access. Townhouse and detached-home clients should explain potentially occupied lower rooms. An assisted-living facility is not automatically within a standard individual-residence scope and requires the authorized operator to define any request. Match preparation instructions to the current occupant, and reserve access for pickup as carefully as for placement.
Local background: Montgomery Planning 2015 Montgomery Village Master Plan, printed page 22, Maryland Department of Health radon guidance, EPA Map of Radon Zones.
01
Apartments, condominiums, townhouses, detached homes and assisted living appear in the Village-wide account. The booked property still needs its own classification.
02
A facility request differs from testing one private residence. The operator must identify the premises, rooms, occupants and access authority before scope is confirmed.
03
A hallway, amenity room or another apartment cannot provide a result for the individual Montgomery Village home being evaluated.
Where we test in Montgomery Village, and what to tell us
Stedwick, Whetstone and Poplar Spring
Identify whether the property is a house, townhouse or unit and describe the rooms controlled by that household. The Village-wide mix cannot answer for one address.
Breckenridge, Normandie on the Lake and Thomas Choice
For managed housing, give the building and residence number, entry desk or lock procedure and the person authorized for setup and collection.
Cider Mill, Rothbury and Walker House
If a lower room could become a bedroom, office or play area, include that intended use. Keep renovation and moving work outside the measurement interval.
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.
The 2015 plan documents several forms across the Village. Naming the actual house, townhouse, apartment or condominium defines the dwelling and the access questions that apply.
One monitor does not establish results for all residences. A multi-unit request needs authorization, a defined list of units and an appropriate measurement plan for each.
Not automatically. The authorized operator must describe the facility area, occupants and access so NextDay Inspect can confirm a suitable scope before service.
Describe how each low room is used now and any planned regular use. The technician uses that information and the actual layout to choose the measurement level.
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
