Radon Testing in Dulles VA

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Dulles, VA Radon Testing & Radong Inspection

What is Radon?

Radon gas is a naturally occurring cancer-causing agent. Radon gas is known to cause lung cancer in humans.

38%+ of houses in the Dulles VA area have a radon concentration above the DNS action amount.

Radon filters out of the dirt, not the building. No structure- new or old – is fully encapsulated against radon infiltration.

Each house meshes with the ground underneath it differently. That is why homes adjoining each other can have significantly different radon gas accumulation.

Radon gas levels will shift daily and seasonally within a reasonable range. A short-term radon sample measures a small time period and an accurate metric of whether or not the structure has a radon accumulation.

Radon has a lifespan of about half of a week. That means that radon concentration won’t be higher if the property is closed for months, days, or years.

How Does Radon Penetrate your home?

Surprisingly, homes are not absolutely hermetically sealed.

Gas will enter through each ground-facing gap in the home such as sump pits, plumbing pipes, and even minor cracks in the foundation.

The way to know with confidence the concentration of radon gas in the property is to have a radon test.

Your Radon Test Procedures

Sampling a house for radon is a special service when done a real estate purchase.

Your Dulles home inspection expert will place the radon analyzers in the home. Radon monitors will be dropped off in crawl spaces, the level above crawl spaces, and any room touching earth. It is typical that a few probes are installed in the house for the radon gas test.

Your radon gas specialist will close every window, seal the vent on the fireplace, and make sure the heating and cooling system is functioning in the required manner. Our radon gas technician will also treat any required window with tamper-proof tape to confirm that closed home standards are upheld.

The radon probes stay in the building for two or three days to record the prevalance of radon gas in the house. A specialist will return to the home after the radon measurement is complete to recover the monitors and write a report.

Please call today for a zero-cost consultation! Our radon testing consultants will come out to hear about your property, measure your space, and get you on target on making your Dulles VA property one you can take pride in!

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Donofrio & Associates, LLC IconDonofrio & Associates, LLC

44933 George Washington Boulevard STE 145, Ashburn

4.9 1,653 reviews

  • Avatar Jack ★★★★★ 5 months ago
    Got Matt on very short notice to inspect a house that we are buying. Very happy with his service. His inspection is professional, informative, and thorough! He's very patient with our questions and explain findings in easily understandable … More terms. Definitely will recommend Matt to my friends and family!
  • Avatar Darius Simms ★★★★★ a year ago
    Very prompt and precise. Daniel was there ahead of time and got an early so by the time we arrive, he basically had a chance to inspect it again. Except job and great service. Highly recommend using Donofrio & Associates, LLC for your … More home inspection needs.
  • Avatar Len Phillips ★★★★★ a year ago
    The staff at Donofrio & Associates was very professional and helpful in setting up my home inspection. My inspector was also thoroughly professional, courteous, and engaging throughout his inspection, pointing out everything that he … More found during the inspection, familiarizing me with all aspects of a newly purchased house, and making recommendations on maintenance items associated with the house. Highly recommend.


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