Eastern Connecticut
Home Inspection Services

Serving Eastern CT towns & cities including Willimantic, Mansfield, Windham, Tolland, Coventry, Willington, Chaplin, & Columbia

Committed to quality home inspection

(860) 450-1500


Radon is a radioactive gas which results from the natural breakdown of uranium found in rocks and soil. Studies have shown that exposure to radon gas increases the risk of lung cancer. Most homes in Connecticut have a measurable amount of radon gas, and some have high levels. The Environmental Protection Agency (EPA) recommends that steps be taken to reduce radon if the level detected is 4.0 picocuries per liter (pCi/L) or higher. Although there are some known "hot spots" for radon in the state, there is no way to accurately predict whether a house will have high radon. Two adjacent homes may have very different radon levels. For this reason it is a good idea to test for radon before buying a home. If a high radon level is detected, the cost of correcting it can be considered along with other factors affecting the purchase. In some cases the seller may pay part or all of the cost of radon remediation.

ECHIS uses continuous radon monitors (CRM’s) to measure radon gas.  These instruments provide more information than charcoal canisters or other similar devices. A graphic printout of the results shows the hourly radon readings for the test period. The CRM is placed in the house for a minimum of 48 hours. For an accurate radon test, "closed house" conditions must be maintained for 12 hours prior to testing and throughout the test period. This means that doors and windows must be kept closed, except for normal traffic in and out of the house, and systems which draw in outside air (whole-house fans, air conditioners set on "fresh air", etc.) should not be used.

Don't Panic!
There are effective methods of reducing radon...

Don’t panic if your radon result is 4.0 or higher! Reducing radon is accomplished by a variety of methods. Often the solution is to install a fan system that removes radon from under the basement floor. Only a licensed radon remediation contractor should be hired to do this type of work. The contractor will perform further testing of radon levels before and after corrective measures, to verify that the measures taken were effective.


In homes that have a private water supply, radon may also be found in the well water. Radon in water contributes to the radon levels in the air, and radon levels may be higher in the shower, around the washing machine, etc. If a test of radon in the air detects elevated radon (4.0 pCi/L or higher), a radon test of the well water is recommended. The State of Connecticut suggests that steps be taken to reduce radon levels in water if the measurement is greater than 5000 pCi/L.


EPA Radon Information

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Eastern Connecticut
Home Inspection Services LLC.
(860) 450-1500