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Home/Radon Testing/Spotsylvania County, 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 all of Spotsylvania County
Schedule a radon test Call (703) 450-6398 Find your community
One community in the county has a page of its own with local detail. The test, the price and the technicians are the same across the county, so you can book from either page.
Fredericksburg says its Historic District encompasses hundreds of buildings in the historic downtown core.
Fredericksburg is an independent city rather than part of Spotsylvania County. Confirm the jurisdiction from the complete address before using city or county requirements.
A radon test in Spotsylvania County 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 service covers one residence. A combined city-and-county order or multiple-unit request needs a confirmed scope and price.
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 Spotsylvania County.
EPA places Spotsylvania County in Zone 1. This county-scale category describes estimated potential and does not supply a result for an address. Independent Fredericksburg City is a separate jurisdiction; confirm the property location and measure the residence itself.
Start with the full property address. Fredericksburg is an independent city, not a community within Spotsylvania County, even though it is the nearby linked page. Once the jurisdiction is clear, identify the residence, its lowest regularly usable level and anyone who controls entry.
Local background: EPA Map of Radon Zones raw county data, EPA Map of Radon Zones guidance, Fredericksburg local source.
01
Spotsylvania County and independent Fredericksburg City have separate geography. Confirm the property record first, then treat the applicable EPA category as general context and the indoor measurement as the answer.
02
Fredericksburg's Historic District is city context. A Spotsylvania property should use the county page and its own complete address.
03
Closed conditions begin 12 hours before monitor placement and continue through the 48-hour collection, apart from normal entry and exit.
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.
EPA identifies Spotsylvania County as Zone 1, its higher estimated potential category. The County map label cannot measure a home or be transferred automatically to an address in independent Fredericksburg City.
Include the complete street address and confirm whether the property record identifies Spotsylvania County or independent Fredericksburg City. That distinction keeps the local information, appointment and report attached to the correct residence.
Use the lowest level of the residence that could be occupied routinely. An unfinished room planned for later use can count. The technician confirms placement after the county address and dwelling scope are clear.
Allow 12 hours of closed conditions before placement, followed by a 48-hour continuous measurement. Keep the device undisturbed and coordinate both placement and collection access with the occupant or agent.
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
