Who should pay to get the radon reduced?

If you are buying a house, this is strictly a matter of negotiation for which there are no hard and fast rules.No matter who ends up paying, it is in your best interest that the buyer be the one to select the contractor and specify how the work will be done. We have tested several houses that originally measured more than 100 pCi/L, when mitigated were reduced to levels below 2 pCi/L.