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Home/Radon Testing/Calvert County/Prince Frederick, 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 Calvert County
A radon test in Prince Frederick 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 Prince Frederick dwelling is included; separate structures require scope confirmation.
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 Prince Frederick.
Calvert County is EPA Zone 1; the county category cannot answer for a Prince Frederick home.
A County plan says many Main Street houses were built in the late 19th and early 20th centuries. That history is limited to Main Street. For Old Town, the MD 2/4 corridor or a property with separate structures, confirm the residence, current interior arrangement and authorized access. An Old Town buyer should settle seller or agent access before the contingency period becomes tight. Along MD 2/4, clear directions and a reachable keyholder help placement and pickup occur at the intended dwelling. A Main Street residence with a later addition should be described by its current connected rooms rather than by a general historical date. When a property also has a cottage, apartment or occupied outbuilding, identify which residence needs the result and ask about a separate scope for the other. Keep normal mechanical operation steady and avoid remodeling during the measurement. If required conditions are interrupted, leave the equipment where it is and document the event for review instead of trying to restart the test yourself.
Local background: Maryland Department of Health radon guidance, EPA Map of Radon Zones.
01
A district-era statement does not date an individual house.
02
Name a keyholder who can return when the monitor is retrieved.
03
Garages and guest buildings are not automatically included.
Where we test in Prince Frederick, and what to tell us
Old Town Prince Frederick
In Old Town, schedule outside active restoration or tenant turnover.
MD 2/4 and Dares Beach Road area
Near MD 2/4 and Dares Beach Road, provide clear directions for both visits.
Prince Frederick-area homes with separate structures
For separate structures, state which building contains the dwelling to be tested.
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.
Prepare the lowest room that could be used regularly; the technician selects the final spot.
Describe it before booking because it may be a separate residence.
Leave the device in place, note the event and tell the technician.
No. Indoor measurement, not road proximity, supplies the result.
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
