How Often Should Radon Gas Tests Be Conducted?

Regular tests for radon help ensure your family's safety.

Seasonal Changes Affect Radon Levels

Radon levels may change with the seasons.

Many people test their homes for radon only when they buy or sell, but once is not enough. Radon levels may change with the seasons, so a house with an all-clear result in the spring may have dangerously high levels in the winter. It is important to perform initial short-term tests in both warm and cool seasons to establish baseline levels.

Changes in Your Home Affect Radon Levels

Renovations and repairs can affect radon levels.

Radon enters your home through cracks and gaps in floors and walls, joints in construction and water pipes. These can be affected by renovations, repairs, earthquakes, harsh weather and settling of the house over time, so you should retest after any changes to your home's structure.

Bottom Line

Homeowners should test for radon every one to two years.

Because so many things can affect a home's radon levels, homeowners should test for radon at least every other year. In areas where radon is high, experts recommend annual tests. The test is easy and inexpensive; your peace of mind is well worth the effort.