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Shawn Jones

Phone: 540-357-0806
Fax: 276-686-5592

PO Box 1125
Radford, VA


Manufactured Homes

Radon Testing

Quality Pro Home Inspections
Quality Pro Home Inspections
Quality Pro Home Inspections
Quality Pro Home Inspections
Quality Pro Home Inspections

Quality Pro Home Inspections

“Saving Lives By Testing For Radon”

Virginia requires Certification by either the NATIONAL RADON SAFETY BOARD (NRSB) or the NATIONAL ENVIRONMENTAL HEALTH ASSOCIATION RADON PROFICIENCY PROGRAM (NEHA/NRPP) for all Radon Reduction/Mitigation Systems as well as Measurement and Analysis. Please click here to view examples.

National Radon Safety Board (NRSB) Radon Measurement Specialist NRSB 7SS0015
National Radon Safety Board (NRSB) Radon Mitigator NRSB 7G0004
National Environmental Health Association National Radon Proficiency Program (NEHA/NRPP) Radon Measurement Provider Certification 104242 RT

Radon Reduction Techniques Work
Fix your home if your radon level is confirmed to be 4 picoCuries per liter (pCi/L) or higher. If you smoke and your home has high radon levels, your risk of lung cancer is especially high. Radon reduction systems work. The cost of fixing a home generally ranges from $1000 to $2,500 (with an average cost of $1,200). Your costs may vary depending on the size and design of your home and which radon reduction methods are needed. Hundreds of thousands of people have reduced radon levels in their homes.

Basement and Slab-on-Grade Houses
In houses that have a basement or a slab-on-grade foundation, radon is usually reduced by one of these types of soil suction: subslab suction, drain tile suction, or sump hole suction

Active Subslab Suction (also called subslab depressurization) is the most common and usually the most reliable radon reduction method. One or more suction pipes are inserted through the floor slab into the crushed rock or soil underneath. They also may be inserted below the concrete slab from outside the house. The number and location of suction pipes that are needed depends on how easily air can move in the crushed rock or soil under the slab, and on the strength of the radon source. Often, only a single suction point is needed.

A radon vent fan connected to the suction pipe(s) draws the radon gas from below the house and releases it into the outdoor air while simultaneously creating a negative pressure (vacuum) beneath the slab. Common fan locations include unconditioned house and garage spaces, including attics, and the exterior of the house.

Passive Subslab Suction is the same as active subslab suction except it relies on natural pressure differentials and air currents instead of a fan to draw radon up from below the house. Passive subslab suction is usually associated with radon-resistant features installed in newly constructed homes. Passive subslab is generally not as effective in reducing high radon levels as active subslab suction.

Some houses have drain tiles or perforated pipe to direct water away from the foundation of the house. Suction on these tiles or pipes is often effective in reducing radon levels.

One variation of subslab and drain tile suction is sump hole suction. Often, when a house with a basement has a sump pump to remove unwanted water, the sump can be capped so that it can continue to drain water and serve as the location for a radon suction pipe.

Crawlspace Houses
An effective method to reduce radon levels in crawlspace houses involves covering the earth floor with a high-density plastic sheet. A vent pipe and fan are used to draw the radon from under the sheet and vent it to the outdoors. This form of soil suction is called submembrane suction, and when properly applied is the most effective way to reduce radon levels in crawlspace houses.

Another less-favorable option is active crawlspace depressurization which involves drawing air directly from the crawlspace using a fan. This technique generally does not work as well as submembrane suction and requires special attention to combustion appliance backdrafting and sealing the crawlspace from other portions of the house, and may also result in increased energy costs due to loss of conditioned air from the house.

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