Office :  (540) 265-0101
Toll Free : (866) 292-5208
Fax: (540) 904-6990


We provide community awareness seminars. Contact us for information.
Radon Safe LLC
Protecting Your Home and Your Family

Radon Testing
Testing is the only way to know if your home has elevated radon levels.  Indoor radon levels are affected by the soil composition under and around your home and the ease in which radon can enter your home.  Homes that are next door to each other can have different radon levels – making a neighbor’s test result a poor indicator of radon risk in your home.

Many people ask “What type of house should be tested?”. The answer – every house;
homes with or without basements, slab on grade, partial or full crawl space, old or brand new and even homes with existing radon systems.  We have replaced many systems that have not been working properly to remove radon.


The quickest way to test is with a short-term test.  These remain in your home for 2-90 days, depending on the type of device used.  These devices include alpha track detectors, charcoal canisters, charcoal liquid scintillation detectors and electret ion chambers.  Radon levels can vary from day to day and season to season.  A short term test is less likely to tell you your year-round average radon level, but if you need results quickly, a short term test followed by a second short term test may be used to determine if you should opt for radon remediation.

Long-term tests remain in your home for more than 90 days.  These tests can more accurately determine your year-round average radon levels.


Passive devices do not need power to function.  They are exposed to the air in your home for a specific amount of time and are then send to a laboratory for analysis.

Active devices require power to function.  They continuously measure and record radon in the air, making radon spikes and dips more apparent.  They may include anti-interference features that reveal if the unit is moved during testing.  They are generally considered to be more reliable than passive radon devices and are normally used by home inspectors and air quality professionals.  The results of testing can be read immediately after the duration of time required for being in the home has passed.


The testing device should be placed in the lowest level of the home suitable for occupancy.  This could be the lowest level currently lived in or an area that a buyer could use for living without major renovations.  This test should be in a room used regularly – not in a kitchen, bathroom, or laundry room. The test should be placed at or about breathing level and away from an exterior wall.


The state of Virginia requires all persons who conduct, or offer to conduct, radon screening, testing or mitigation in the Commonwealth to be listed as proficient by the National Radon Measurement Proficiency Program of the National Environmental Health Association or the National Radon Safety Board Certified Radon Professional Program.

These qualification requirements DO NOT apply to the following:

Homeowners testing their own homes
  • Businesses, such as hardware stores, that sell radon testing kits, provided they do not place the kits or provide test results directly to the customer
  • School employees who conduct radon testing incidental to their employment with the school
  • Builders who install radon mitigation systems during the time of construction of the home

Radon Safe Inc. takes your health and the health of your loved ones very seriously. We use the Continuous Radon Monitor (CRM) for most of the tests we conduct.  We are certified through the National Environment Health Institute for both RADON TESTING and RADON MITIGATION.


Call or email us for a quote for Professional Radon Testing or a do-it-yourself kit.  
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