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Home/Radon Testing/Prince William County/Woodbridge, VA
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 Prince William County
A radon test in Woodbridge 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 Woodbridge home or apartment. Provide the unit and management contact when booking. Share parking instructions and any elevator reservation that affects the two technician visits.
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 Woodbridge.
Prince William County is EPA Zone 2. The map describes county potential; a Woodbridge decision needs a measurement from the selected residence.
A 2025 County environmental assessment names The Landing at Mason’s Bridge Apartments, Rivergate Apartments and an existing North Woodbridge apartment building. Those named sites support apartment-specific access planning, not a description of every Woodbridge home. For a North Woodbridge apartment, document the unit number and building-entry contact. For a Dale City or Lake Ridge house or townhouse, explain the actual lower-room arrangement. Around Occoquan, River Oaks, Belmont Bay or Port Potomac, select a calm period when residents can protect the device and normal closed-building conditions. Notify every occupant of the retrieval time and keep pets away from the selected monitoring location.
Local background: Woodbridge primary housing context, Virginia Department of Health radon guidance, EPA Map of Radon Zones.
01
The County source confirms several apartment sites; each tested unit still needs its own result.
02
A monitor in one apartment does not report conditions in adjacent residences or the whole building.
03
Settle keys and authorized entry before placement so retrieval is not delayed.
Where we test in Woodbridge, and what to tell us
Dale City, Lake Ridge
Confirm the exact Dale City or Lake Ridge residence and show the technician its lowest potentially regular-use room.
Occoquan, River Oaks
For an Occoquan or River Oaks unit, arrange owner, tenant or desk entry for placement and pickup.
Belmont Bay, Port Potomac
At Belmont Bay or Port Potomac, keep moving and contractor activity 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.
Virginia's residential disclosure statute directs the seller's disclosure statement to say that the owner makes no representation about whether the property is in an EPA Zone 1 or Zone 2 locality. It directs buyers to use due diligence, including reviewing EPA, Virginia Department of Health and NRSB information and ordering a radon inspection before settlement as the contract allows.
Va. Code section 55.1-703. Current as of September 2026. General information, not legal advice.
No. The reading applies to the tested unit. Other apartments require separately authorized measurements.
The technician uses the lowest level in that townhouse that could be used regularly.
Obtain permission if required and provide unit-specific access for placement and retrieval.
No. Nearby homes can differ, so test the residence involved in the decision.
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
