Radon Testing

We test more than half of our inspected homes for radon.  This is a very common practice in a Maine real estate transactions that regularly reveals unsafe levels of radon, often unknown to the seller.  Radon levels will change over time and all homes are at risk, including those on a slab. 

Radon is everywhere.  Every Maine county has high levels.  If concentrations are too high in your home, your health is at risk.  Fixing the problem (if needed) is fairly straightforward.  Due to an obvious conflict of interest, we don't mitigate.  We only test.  


According to Bob Stilwell of Maine's radiation control program at the Department of Health and Human Services, Radon occurs in unusually high levels in Maine and, “There are not many states equal to or higher than Maine.”


Let us help you professionally test for Radon in your home using our Continuous Radon Monitors (CRM,) so you can have the peace of mind to know you are safe from radiation.

A CRM is a way of testing the radon levels electronically, and excludes the potential for human error.  CRMs take an electronic, hourly reading and provide results immediately.  No lab time is needed.

Our fleet of Sun Nuclear 1027 CRMs are calibrated annually by Sun Nuclear, as required by the State of Maine.  Maine Radon testers must be licensed.  Find our license here.

Radon Information


EPA Assessment of Risks from

Radon in Homes


Radon - Health Risks & Control Measures


Square One Home Inspections

(207) 560-3222

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