I think we ought to step back a bit. Radon is not a major killer, though
proven to be a killer. Kits used by the user that are left in the
appropriate place for an extended period of time can be helpful. Short
term tests of less than a week can lead to ambiguous results. It is not
asbestos in the workplace (recognising sadly those that have suffered
from this form of exposure)- which has cost many dearly as a result of
the scaremongering, but is an issue in its own right that we should
address appropriately.
I agree. I don't see why anyone expects that just because they pay
someone to come do the test, the accuracy is going to be any better
than the kit you can buy at HD. This isn't rocket science. The kit
is just a canister you put in the basement that absorbs radon and then
gets measured at a lab. Absent any investigation or proof of
certification of the lab, there is no way to know that the lab the
$150 guys sends it too is any better than the one the HD kit goes to.
In fact, it could be the same one. And I'm sure you can find info at
the test kit manufacturers website that explains the test, the
company, and their qualifications.
A lot of these tests are just done by home inspection companies as
part of a pre-sale inspection. And that's kind of funny, because
they put the canister in the basement. How does the buyer know the
seller doesn't just take the thing and move it to outdoors for a week?