Studies have shown that over half of the homes in the State of Maine have elevated levels of radon.  There is no "indicator" to tell whether your home has elevated levels, other than testing.  If you are involved in a real estate transaction, a State registered tester is required.  However, if you own your house, you can easily test on your own.  CLICK HERE to e-mail me, or call me at 852-7020 for more information.