How much does radon testing cost?

Radon testing costs vary by property size and type and location. Contact Radon Test DMV at 202-930-1797 for a fast, free quote in Virginia, Maryland, or Washington DC.

How long does a radon test take?

A standard radon test typically runs for 48 hours of continuous monitoring, with results available shortly after the test period ends.

What radon level is considered dangerous?

The EPA recommends taking action to reduce radon when levels reach or exceed 4.0 pCi/L. Levels between 2.0 and 4.0 pCi/L may also warrant mitigation.

Why is radon testing important in real estate transactions?

Radon testing protects buyers and sellers by identifying a serious health hazard before closing. Many real estate contracts in VA, MD, and DC include a radon contingency.

Do you serve my area?

Radon Test DMV provides radon testing throughout Virginia, Maryland, and Washington DC. Call 202-930-1797 to confirm service in your location.

How Professional Radon Testing Works

Radon Testing DMV provides professional 48-hour radon testing using Airthings Pro continuous radon monitors operated by NRSB-certified Radon Measurement Specialists. Our testing process is designed for homeowners, real estate buyers and sellers, agents, property managers, commercial properties, and new construction projects across Virginia, Maryland, and Washington DC.

Step 1: Schedule Your Radon Test

Choose a convenient appointment time online or contact us directly. When scheduling, let us know if the test is for a real estate transaction, home purchase deadline, pre-listing inspection, post-mitigation verification, or general home safety check.

Step 2: Prepare Closed-House Conditions

Short-term radon testing requires proper closed-house conditions so the results reflect the property accurately. Closed-house conditions should begin at least 12 hours before the test starts and continue during the monitoring period.

Keep windows closed
Keep exterior doors closed except for normal entry and exit
Operate heating and cooling systems normally
Avoid window fans, whole-house fans, and unusual ventilation
Do not move, cover, unplug, or disturb the monitor

Step 3: Professional Device Placement

Our technician places the radon monitor in the lowest suitable livable area of the property according to professional testing standards. Common test locations include basements, finished lower levels, family rooms, offices, or other areas that could be regularly occupied.

The device is positioned away from drafts, exterior doors, windows, high humidity sources, and locations that could interfere with the measurement.

Step 4: 48-Hour Continuous Monitoring

The monitor continuously measures radon over a minimum 48-hour period. Continuous radon monitoring provides more detailed information than a basic charcoal kit because it records hourly measurements and helps identify unusual changes during the test period.

Step 5: Device Retrieval and Data Review

After the monitoring period is complete, we retrieve the device and review the test data. We check the measurement period, device conditions, hourly readings, and any indications that the test may have been disturbed.

Step 6: Digital Radon Report

Most reports are delivered the same day or within 24 hours of device retrieval. Your report includes:

Average radon level
Hourly radon readings
Testing start and end time
Property and placement information
Testing conditions
EPA action-level guidance
Clear next steps if elevated levels are found

Who Uses Our Radon Testing Process?

Homeowners checking indoor air quality
Home buyers during inspection contingency periods
Home sellers preparing to list a property
Real estate agents needing fast, professional reporting
Property managers and commercial clients
Homeowners verifying radon mitigation performance

Schedule a Professional Radon Test

Radon Testing DMV serves Northern Virginia, Maryland, and Washington DC with certified 48-hour radon testing and fast digital reports. Contact us to schedule your appointment.