What does a person do when they find high radon levels in their home?
A. We’ll answer this by first asking: Have you retested to confirm that the radon levels are actually too high? (Do you have an average of over 4 pCi/l from the results of two or more short-term tests or from one long-term test of 90 days or more.) More detailed information can be reviewed by clicking on the US EPA slide show . Protecting Your Home From Radon. is a book by Doug Kladder. This book is the most complete source of information on radon mitigation techniques currently available. If you want to hire a contractor (the cost will most likely run from $700 to $2500, according to the size of the building, etc.) then you will want to call your state radon officer and ask for a list of approved “Radon Mitigation Contractors.” All of the state phone numbers are listed at the US EPA site under State Radon Contacts. If you want to locate an NEHA-certified mitigation contractor yourself, you will find a list of Residential Radon Mitigation Service Providers here. For some official infor
