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Home/Radon Testing/Loudoun County/Lansdowne, VA

Radon testing

Radon Testing in Lansdowne, VA

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

Schedule a radon test Call (703) 450-6398

What our customers say

From our customer reviews.

They conducted the test right away and kept me informed every step of the way.

Rachel RaphaelRadon testing
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They arrived the day after I called, on time, set up the Radon test and left within 5 minutes.

Catherine HRadon testing
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Everything was handled so professionally, quickly and so easy to have our house tested for radon.

Alma PrinceRadon testing
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They found elevated radon in the home and numerous issues on the home inspection report which were remedied before I moved in.

Shawn McCallRadon testing
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Great service, very thorough inspection and highlighted items in a very approachable and organized manner.

Elizabeth Anne NewberryCustomer review
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How much does radon testing cost in Lansdowne?

A radon test in Lansdowne 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 Lansdowne residence is covered by the normal price. Another unit, club facility, guest residence or separately occupied suite requires its own approved scope.

Day 1

Drop-off

We place the monitor

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

The monitor does the work

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

We collect it, read it, and write it up

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.

National Radon Safety Board

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 Lansdowne.

Radon testing in Lansdowne, Loudoun County

Virginia health officials say Loudoun County's older moderate-risk label understates its radon potential. That county-level finding supports testing in Lansdowne, but it is not a reading for your house or condo. The test must measure the residence you are buying or living in. Tell us if the lowest level includes a bedroom, family room, office or space that may be used regularly after a move.

Book a Lansdowne radon test for the exact dwelling, including a building and unit number when needed. A technician must place the monitor and return at least 48 hours later to collect it, so confirm entry arrangements for both visits. If your building or community requires visitor authorization, arrange it in advance. During the test, follow the closed-house instructions and keep people, pets and work crews from moving the monitor.

Radon testing guidance: Loudoun County indoor air quality and radon guidance, Virginia Department of Health high-risk correction for Loudoun, EPA property-testing and zone-map guidance.

Aerial view of a suburban neighborhood in autumn

01

Loudoun risk

VDH's updated county assessment is a reason to test; your home's reading is the result.

02

Building and unit

For a condo or apartment, provide the exact residence and a person who can grant access.

03

48-hour interval

Plan for placement and pickup while the monitor stays undisturbed.

Where we test in Lansdowne, and what to tell us

  • Lansdowne on the Potomac

    In Lansdowne on the Potomac, describe the rooms that could be used regularly on the lowest level.

  • Lansdowne Woods

    For Lansdowne Woods, specify the condo unit and coordinate entry for both technician visits.

  • River Creek and Belmont Country Club

    At River Creek or Belmont Country Club, arrange any visitor approval before the test begins.

We only perform testing, not mitigation.

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.

Before you book in Virginia

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.

Radon testing near Lansdowne

Radon testing in Lansdowne, answered straight

What does the Lansdowne HOA source prove?

It establishes Lansdowne on the Potomac as a defined HOA community. It does not describe River Creek, Belmont Country Club or every address carrying a Lansdowne mailing label.

How should a Belmont Country Club seller arrange access?

Register the technician for both service visits, provide the gate route and name an alternate contact. Verify that the collection authorization remains active after the 48-hour minimum.

Can a Village at Leesburg common room be used for a unit test?

A common room does not answer the identified residence’s measurement question. The device must be placed within the authorized unit unless a different scope is expressly arranged.

What should be reported if Lansdowne building staff move the monitor?

Leave the equipment in its new position, record who moved it and the approximate time, and contact the technician promptly. Do not attempt to recreate the original setup.

Book a radon test in Lansdowne

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

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