Once you’ve received your radon test results, you may be feeling pretty good, as long as the levels were low. However, it’s important to realize that radon levels can fluctuate, so the short-term test performed by your home inspector may not be enough to really see if there is an issue. It’s best to follow up with a long-term test to see what the radon levels in your home are like during different seasons and weather patterns.

If you are looking to sell your home and passed a radon test when you first move in, make sure to retest now to make sure levels have not increased over time. If remediation is necessary, it’s better to be prepared for it than to be surprised last minute while trying to close on your home.