Radon Testing in Annandale

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Annandale Radon Testing & Radon Inspection

What’s Radon Gas?

Radon gas is a common-place cancer-causing agent. Radon gas is well known to lead to lung cancer in people.

Many houses in the Annandale area have a radon saturation near or above the DNS action amount.

Radon gas comes from the dirt, not the home. No home- new or old – is fully shielded from radon.

Each house interfaces with the soil in a different manner. That is why homes adjacent to one another may have significantly different radon gas levels.

Radon saturation will fluctuate on different days and with the seasons inside a safe range. A one-time radon measurement measures a single day or week and is a reliable metric of whether the structure has a radon accumulation.

Radon has a lifespan of only a few days. That means radon gas saturation won’t be any greater if the property is closed for months, days, or years.

How Does Radon Gas Seep into the Structure?

It may surprise you to know that homes are not totally airtight.

Radon gas will suffuse through every ground-facing gap in the building such as sump drains, pipeworks, and invisible imperfections in the foundation’s concrete.

Your method to know with certainty the concentration of radon in the house is to order a radon test.

Our Radon Testing Method

Testing a property for radon gas is a unique process when delivering a property sale.

A radon gas specialist will situate the radon gas probes on the property. Radon gas detectors are dropped off in crawl spaces and on the first floor. Typically between 1 and 3 devices are left in the structure for the radon gas testing.

The radon gas professional will close windows, shut the damper on the fireplace, and ensure the HVAC system is operating in a standard manner. Our radon expert will additionally seal any necessary window with tamper indication tape to ensure that closed home conditions are upheld.

The radon monitors are stored in the home for 2-3 days measuring the prevalence of radon gas in the house. An expert will return to the building once the radon testing is done to recover the analyzers and write a report.

Call us today at 703-782-5344 for a no-cost price estimate! Our radon testing experts will meet with you to ask about your property, measure your space, and get you on target for making your Annandale house one you can enjoy completely!

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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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