Radon Testing

The EPA recommends testing your home for Radon levels every two years!

Our Inspectors are NRSB Certified

We complete Re-Certification every 2 years.

We take Continuing Education courses.

We have dedicated Radon Specialist on staff!

Testing Requirement For Home Sales

As of October 1st, 2016, Montgomery County law requires that single-family homes must be tested for Radon before completing a sale of the home. (This requirement is contained in Chapter 40 of the Montgomery County Code).

How We Test For Radon

  • We have a team of certified and dedicated technicians conducting Radon tests!
  • With our primary method of testing (CRM), test results are available the same day as the completed test.
  • Closed home conditions are required for accurate data collection.
  • Tests are placed usually in the basement , or at the lowest living space of the building. Away from vents and windows.
  • Our specialists are always available to answer any questions you have. Contact Us!

Our Primary Method For Testing is using a Continuous Radon Monitor (CRM).

These approved devices:
  • Take hourly readings and provides EPA average.
  • Can detect movement.
  • Must be plugged in.
  • Runs for 48 hrs.
  • Has a Rapid Report Turn Around Time: 2-3 days.
Our secondary method of testing for Radon is using Charcoal Liquid Scintillation Vials (LS Vial)
This approved method:
    • Use vials to collect radon from the property.
    • Results are reported as overall average.
    • Takes up to 7 business days for results as vials are sent to a third party lab for analysis.
    • Low cost option!


    • Remediation is inexpensive.
    • Remediation is recommended when levels are at least 4.0 pCi/l.
    • Newer homes have Passive System already installed.
    • Homes with a passive system already in place should cost around $600-800 to fix.
      Homes without a passive system cost about $1,200-1,400 (closer to $900 if there is a sump pump).
    • You can find recommended contractors at the bottom of this page under the resources section.
    • You should never back out of a contract based solely on a high radon reading. All houses can be lowered to an acceptable level.
      • Another test should be done to make sure the fan is effectively lowering the radon level. Sometimes, adjustments need to be made to the fan. Most remediation companies do not perform testing before or after since it would be a conflict of interest.
      • Wait at least 24 hours after system is turned on, but no more than 30 days.
      • We offer a discount for “Post Tests” (only if we also did the original CRM test).
      • Montgomery County is the first locality in the US to establish a radon testing requirement

Retesting & Misconceptions

When To Retest

      • Every 2 years or After Seasonal changes.
      • After remediation (24 hours to 30 days).
      • Major renovation, new windows, new hvac, etc.
      • Fans last 5 years, so if your fan has been broken or is old.


          • My home can’t have high radon since there’s no basement.
          • If below 4.0 pCi/l, my house is safe.
          • If the home already has a passive system, I’m in the clear.
          • After remediation, my house is fixed for life.
          • I should not buy a house because it has high radon levels.
          • I can not move into my house until my radon levels are low.
          • Radon is not real

What Is Radon?

Radon is an invisible, odorless, and tasteless gas. It is radioactive yet undetectable to the naked eye. Radon comes from the natural decay of uranium in some building materials, soil, water, and rocks. Radon is a health hazard with a simple solution!

Why Should You Test For Radon?

1 out of every 4 homes in our area test high for Radon! According to Environmental Protection Agency, radon causes 21,000 lung cancer deaths every year. With our certified testing protocol we are able to detect radon levels with accuracy. The only way to know is to test your home. Contact us to schedule a radon test!

Lives Saved
ProTec completing radon testing

Surgeon General Health Advisory

"Indoor radon is the second-leading cause of lung cancer in the United States and breathing it over prolonged periods can present a significant health risk to families al lover the country. It's important to know that this threat is completely preventable. Radon can be detected with a simple test and fixed through well-established venting techniques."

-January 2005

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