Home/Radon Testing/Fairfax County/Springfield, 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 Fairfax County
A radon test in Springfield 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 price covers one Springfield home or unit. Book online or call with the exact address, unit and access contact when the property is attached, rented or managed.
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 Springfield.
Fairfax County’s EPA Zone 1 status is a reason to measure, not a Springfield property result. Use the reading collected under protocol in the selected residence.
The County plan describes detached housing in Crestwood outside the commercial center and townhouses along the sector’s northern boundary. The Pohick plan names West Springfield Mews and West Springfield Terrace townhouses. Identify whether the appointment is for a house or attached unit and show the technician the actual vertical layout. Keep active flooring, painting and mechanical work outside the measurement period.
Local background: Fairfax County Springfield plan, Fairfax County Pohick plan, Virginia Department of Health radon guidance, EPA Map of Radon Zones.

01
The County plan describes detached housing in Crestwood outside the commercial center and townhouses along the sector’s northern boundary. The Pohick plan names West Springfield Mews and West Springfield Terrace townhouses.
02
Describe the Springfield residence as it exists now, including any low room intended for regular use. The technician selects placement from the current interior rather than a sector-wide housing description.
03
Schedule painting, flooring, mechanical service and other disruptive work outside the measurement period so the equipment and normal building operation remain stable.
Where we test in Springfield, and what to tell us
North Springfield, Springfield Estates
Identify whether the appointment is for a house or attached unit and show the technician the actual vertical layout.
West Springfield, Rolling Valley
Keep active flooring, painting and mechanical work outside the measurement period.
Saratoga and the later streets
For an address in Saratoga and the later streets, use the current floor plan and keep the selected area available for placement and retrieval.
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.
The technician selects a compliant spot on the lowest level of that townhouse that could be used regularly. The neighboring unit’s layout does not control placement.
Describe the current residence type, the lowest level that could be used regularly and any agent, tenant or management access. County planning examples do not replace the actual floor plan.
No disruptive work should occur while the monitor is deployed. Schedule painting, flooring, mechanical service and projects involving frequent door use before or after the measurement period.
Confirm who can admit the technician at the end of the test and keep the retrieval time clear. Tell occupants and agents not to relocate the device before pickup.
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