I was reading on a web site that the average is about $2000. They gave a low value of $800, so I suspect that the standard deviation is probably $600, which means that the most likely range is $800 to $3200. (See http://www.infiltec.com/inf-catr.htm and http://www.neradon.com/faq.htm .) > From: http://www.juno.com/~margaretch > Date: Sun, 6 Jul 2003 16:42:05 -0400 > > Several Thousand dollars. > D > > On 6 Jul 2003 10:48:27 -0400 http://dummy.us.eu.org/robert (robert) writes: > > Do you know what's involved in mitigating a radon problem?