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Home/Radon Testing/Loudoun County/Purcellville, 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 Loudoun County
A radon test in Purcellville 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. A Purcellville appointment is priced for one residence. A storefront, upstairs apartment, guesthouse or independently rented lower dwelling needs separate authorization and a clarified quote.
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 Purcellville.
Virginia health officials say Loudoun County has more radon potential than its older EPA map label suggests. That county finding gives Purcellville homeowners and buyers a reason to test, but only a measurement inside the home can tell them its level. Describe the lowest room that could be used regularly, including a basement office, guest room or family area planned after the purchase. The technician can then confirm a suitable placement in the residence being tested.
A Purcellville appointment includes monitor placement, at least 48 hours of measurement and a collection visit. Give us the full address and a contact who can provide access on both days. Mention a detached guesthouse or separately occupied lower unit before booking, since one residence is the standard test scope. Choose a period when residents can follow the technician's closed-house instructions and repairs or moving will not disturb the monitor.
Radon testing guidance: Loudoun County Health Department radon guidance, Virginia radon risk-map guidance, EPA radon guidance for buyers and sellers.
01
The county map cannot tell you the radon level in a Purcellville residence.
02
Point out the lowest room that could be used regularly and any separate dwelling.
03
Arrange two visits and leave the monitor undisturbed for at least 48 hours.
Where we test in Purcellville, and what to tell us
Village Case
For a Village Case address, confirm the booked dwelling and whether a lower suite is part of it.
Hirst Farm and Dunolan
Share any gate, alarm or driveway instructions for placement and collection.
Locust Grove and Mayfair
Choose dates after work in the selected lower room is complete.
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.
Yes. The age of a home does not reveal its indoor radon level. A test of the finished residence gives the homeowner or buyer a property-specific result, whether the home is new, renovated or older.
A standard appointment is for one residence. Tell us if a guesthouse, rental apartment or separately occupied lower unit is also part of your request so access, testing scope and price can be confirmed before the visit.
Tell the technician about the lowest level that could be used regularly, including a planned bedroom, office or family room. The technician will choose a suitable location under the testing protocol after seeing the actual layout.
Allow for appointment confirmation, monitor placement, at least 48 hours of testing, collection and delivery of the written report. Share the contract deadline before selecting dates, and arrange access for both visits.
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
