Radon is a naturally-occurring radioactive gas that results from soil’s natural decay. It can enter homes through cracks in floors, walls or foundations; construction joints; gaps around pipes; openings inside of walls; or your water system. While it won’t damage a home’s structure, its invisible particles can enter the lungs and significantly increase residents’ risk of certain types of cancer.
Do you have high radon levels?
If you are concerned about radon, ask a WIN inspector to include a radon test in your home inspection.* During a radon test, inspectors take air samples over a time period to gather a representative sample indicating how much radon is present in the home. Radon levels can vary, but initial measurements can be telling. Some homeowners who monitor radon levels like to monitor radon over time or check periodically to get a sense of the home’s true level of this gas. Radon is measured in “picoCuries per liter of air” (pCi/L), with 2pCI/L or less radon in the air considered acceptable, but more than 4 pCI/L considered unhealthy.
Creating a radon-proof environment
Fortunately, many owners or buyers who do find evidence of high radon levels can reduce their interaction with this gas by sealing cracks, installing ventilation fans, or taking other mitigation measures like installing suction fans inside or below basements or home foundations. The Environmental Protection Agency estimates that the cost to apply radon reduction techniques ranges anywhere from $800 to $2,500, with the average cost about $1,200. These measures can be very effective in controlling radon.
Curious about radon?
- Environmental Protection Agency general information on radon
- Environmental Protection Agency radon information for home buyers and sellers
- Environmental Protection Agency radon information for home buyers and sellers (Spanish language version)
- EPA map of differing radon levels throughout the United States
*Services may only be available through specific WIN home inspectors. Specific licensing and state requirements may also apply.