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Radon testing

Radon Testing in Winchester, 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 Winchester City

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 Winchester?

A radon test in Winchester 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 quoted test covers one Winchester residence. Supply the City address, unit and responsible keyholder.

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 Winchester.

Radon testing for Winchester homes

A radon map cannot tell you the level inside a Winchester home. The useful result comes from measuring the residence you own or plan to buy. An Old Town house may have a lower level used as an office, guest room or family room, while another property may have its regular living space at grade. Tell the technician how the actual home is used, including any lower room a buyer plans to occupy, so placement follows the testing protocol.

For a Winchester radon test, give us the full address and a contact who can open the home when the monitor is placed and collected. The device remains undisturbed for at least 48 hours. Choose a period when residents can follow the closed-house instructions and work in the test area can pause. If the property has a separate apartment or is being sold on a deadline, discuss that scope and timing before booking.

Radon testing guidance: Virginia Department of Health radon guidance, Virginia radon risk-map guidance, EPA guide for home buyers and sellers.

Brick buildings along an Old Town Winchester street

01

Test the booked home

A citywide map or a neighbor's reading cannot replace a Winchester property's result.

02

Identify a usable lower room

Tell the technician about a basement office, bedroom or future living area.

03

Arrange both visits

Provide access for placement and collection after at least 48 hours.

Where we test in Winchester, and what to tell us

  • Old Town Winchester

    For an older or mixed-use building, identify the residence and any separate unit.

  • Amherst and Stewart Street corridors

    Describe the lowest room that could be used regularly in the booked home.

  • Valley Avenue area

    Schedule around repairs or moving so the monitor can stay 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 Winchester

Radon testing in Winchester, answered straight

Does a Winchester radon map show my home's level?

No. A map describes an area, not the air inside one house. Test the residence itself to obtain a property-specific radon result.

Where will a Winchester home be tested?

Tell the technician which lower room is used or could be used regularly, including a space a buyer plans to finish. The technician selects an appropriate location after reviewing the layout.

Can an upstairs apartment share the house's result?

A standard appointment covers the booked residence. Describe any separately occupied apartment or accessory dwelling before booking so its testing scope and access can be confirmed.

How long should a Winchester buyer allow?

Allow for placement, at least 48 hours of measurement, collection and the written report. Share the contract deadline when requesting the appointment.

Book a radon test in Winchester

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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