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Radon testing

Radon Testing in Waldorf, MD

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 Charles 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 Waldorf?

A radon test in Waldorf 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 Waldorf dwelling is covered; identify any separate apartment before booking.

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 Waldorf.

Radon testing for Waldorf homes and rentals

A Waldorf radon test should measure the particular Charles County house, townhouse or private rental unit needing a result. The county zone and a neighboring property's report cannot establish this home's indoor level. Describe the lowest room used or suitable for regular occupancy, including a basement bedroom, office or family area planned after a sale. If a lower space is a separate dwelling, identify both units that need reports before scheduling.

Provide the complete Waldorf address, unit number if needed, and an authorized contact for monitor placement and collection. A tenant, owner or listing agent may need to arrange both visits. The device stays undisturbed for at least 48 hours while residents follow closed-house instructions. Keep cleaning, moving and repairs from disrupting the test room, and share any contract or lease deadline before choosing dates.

Radon testing guidance: Maryland Department of Health radon guidance, EPA radon-zone map guidance.

01

A result for this home

A Charles County map or another address cannot measure the booked Waldorf residence.

02

Describe lower rooms

Include rooms used regularly or planned for regular use after a purchase.

03

Protect both visits

Arrange entry for placement and pickup, and keep the monitor undisturbed.

Where we test in Waldorf, and what to tell us

  • St. Charles and Westlake

    Give the exact service address and identify each residence needing a result.

  • Smallwood Drive corridor

    Coordinate a tenant, manager or agent for both visits.

  • Other Waldorf-area homes

    Describe current and planned lower-room use before placement.

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 Maryland

Maryland's residential disclosure framework includes radon among the hazardous or regulated materials covered by an owner's actual knowledge for certain single-family residential property of four or fewer units. The statute has enumerated exemptions and does not itself require a radon test. County and municipal requirements may differ, so check the rules for the property's location and type before relying on an existing result.

Md. Real Property section 10-702. Current as of September 2026. General information, not legal advice.

Radon testing near Waldorf

Radon testing in Waldorf, answered straight

Does a Charles County radon map tell me my Waldorf home's level?

No. The map describes area potential. Only a measurement inside the particular residence provides its indoor result.

Which lower room matters for a Waldorf radon test?

Tell the technician about the lowest room used or suitable for regular occupancy, including a room planned for use after purchase. The technician selects the test position under the testing protocol.

Can a Waldorf rental use the landlord's result from another unit?

No. Another dwelling's reading does not establish the radon level in the private unit being rented.

What if the house has a separate lower apartment?

Tell the testing team before booking so the scope, access and price can be confirmed for every unit needing a result.

Book a radon test in Waldorf

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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