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Radon testing

Radon Testing in Haymarket, 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 Prince William 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.

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

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

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

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

How much does radon testing cost in Haymarket?

A radon test in Haymarket 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 Haymarket household is included in a standard appointment. Ask for a tailored quote when a property contains an independently occupied apartment, guest residence or second dwelling.

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.

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 Haymarket.

Haymarket radon testing in Prince William County

Haymarket is a town in Prince William County, which the EPA places in radon Zone 2. That category is a regional planning aid, not the result for a Haymarket home. An indoor test in the booked residence answers for that address. Tell the technician how the lowest potentially regular-use rooms are used now and whether a buyer plans a lower bedroom, office or family room.

Prince William County recognizes the Town of Haymarket separately for some development services. Confirm the complete street address rather than assuming town limits from a mailing name. Dominion Valley, Piedmont and Villages of Piedmont appointments may require gate, association or occupant coordination. Share the exact unit and access permissions, then choose a period when showing traffic or contractors will not disturb the monitor before collection.

Local background: Prince William County areas and town jurisdictions, Virginia indoor radon program and EPA map, EPA explanation of radon zone limits.

A street corner with modern brick buildings

Dominion Valley and Piedmont

Villages of Piedmont

Identify any separately controlled lower space or tenant before deciding the testing scope.

Glenkirk Estates timing

Keep the monitor area free of open-house traffic and repair work during measurement.

Where we test in Haymarket, and what to tell us

Dominion Valley Country Club, Piedmont
For Dominion Valley or Piedmont, give the team gatehouse details and an authorized contact.
Villages of Piedmont
At Villages of Piedmont, explain which lower rooms belong to the booked dwelling.
Glenkirk Estates, Westmarket
Near Glenkirk Estates or Westmarket, coordinate showings so the device remains undisturbed.

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 Haymarket

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Radon testing in Haymarket, answered straight

Why does the exact Haymarket jurisdiction matter when booking?

The town and surrounding county addresses can share the Haymarket name. The complete service address helps route the appointment and source access instructions without treating the municipal label as a housing fact.

What should a Dominion Valley seller give the radon technician?

Provide gate authorization, the lockbox or occupant contact, and a description of the lowest potentially regular-use space. Also disclose scheduled vendors who could affect the room during testing.

How should a buyer handle a tight Haymarket contingency deadline?

State the deadline before choosing an appointment. Allow for two site visits, at least 48 hours of measurement time, and report preparation instead of counting backward from pickup alone.

What should be reported after a window was opened in Westmarket?

Record the room, approximate opening and closing times, and who noticed it, then notify the technician. Do not try to compensate by extending or relocating the monitor yourself.

Book a radon test in Haymarket

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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