Home/Radon Testing/Prince William County/Dale City, VA

Radon testing

Radon Testing in Dale City, 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 Dale City?

A radon test in Dale City 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 Dale City dwelling is covered; identify any renter or separate unit. Confirm the reporting email and transaction contact when a buyer, seller and occupant need the result on different schedules. Provide a backup keyholder for collection. Verify the collection date with residents.

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 Dale City.

Dale City radon testing in Prince William County

Dale City is in Prince William County, which the EPA lists as radon Zone 2. That area classification cannot tell a Dale City owner or buyer the level inside one house or townhouse. Measure the booked residence and identify its lowest level that could be used regularly, including a future bedroom, office or recreation room.

Prince William County history documents Dale City's development, but a community's opening date does not establish a home's radon level. Nottingdale, Cheshire Ridge, Daleview Manor, Ashland and Chesapeake addresses may have different floor plans and access arrangements. Give the precise house or unit, coordinate all occupants for the test interval, and keep the monitor undisturbed until the return visit.

Local background: Dale City primary housing context, Virginia Department of Health radon guidance, EPA Map of Radon Zones.

Dale City, Virginia marked on a road map

Nottingdale: lower-room use

Describe a lower room that may be used for work, sleep or recreation, regardless of its current furniture.

Cheshire Ridge and Daleview Manor

Identify the exact townhouse; an attached neighbor's test cannot represent the booked residence.

Ashland and Chesapeake access

Tell occupants and contractors the monitor location and arrange an authorized contact for collection.

Where we test in Dale City, and what to tell us

Nottingdale
In Nottingdale, prepare the lowest space that could be occupied regularly and share any planned change in use.
Cheshire Ridge, Daleview Manor
For Cheshire Ridge or Daleview Manor, distinguish the booked townhouse from adjacent homes and provide entry instructions.
Ashland, Chesapeake
In Ashland or Chesapeake, coordinate household access so the monitor stays in place for the full test interval.

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 Dale City

Nearby

Radon testing in Dale City, answered straight

How should a Dale City townhouse be booked?

Use the exact address and arrange access to that residence.

Can 1965 construction be assumed?

No. The history does not assign a date to every property.

What if I plan a lower-level office?

Tell the technician because possible regular use affects placement.

Can moving continue during testing?

No. Schedule the test outside the active move.

Book a radon test in Dale City

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

Property inspections

Specialty inspections

Air & environment

Water & materials

Your next step

Our company