Talk to a NEHA certified Radon mitigator who followed the Proficiency course in Radon Mitigation and passed all required examinations. (NEHA RPP-certified) This will ensure you to get the professional help you need for the lowest cost.
At RHMM we are NEHA-certified and will use the guidelines set by the EPA on Radon mitigation in your home. Some of these guidelines are listed below. It is important to make sure that these guidelines are completely followed in your mitigation process, independent of who your contractor is.
Talk to your mitigating contractor about them before you have the work done.