Radon inspections performed during a real estate home inspection typically cost around $150; however, if it is done by itself, it can cost $250 or more, as of 2015. Homeowners can perform their own home radon inspections with test kits that can be obtained for free or at discounted prices.
Free radon test kits are commonly available from many state health departments or other local environmental agencies. The U.S. Environmental protection agency has contact information for resources that provide discounted home radon test kits. Discounted kits are typically less than $40. The cost of mitigation solutions for homes that test positive for unsafe levels of radon vary widely depending on the size of the home and the extent of the contamination.