Radon testing is increasingly common in real estate transactions, with many buyers requesting testing as part of home inspections. High radon levels can impact negotiations, but they don’t typically prevent sales since effective mitigation options exist. Sellers benefit from proactive testing that identifies and addresses issues before listing, preventing last-minute complications. Commercial property transactions often require radon documentation for due diligence and insurance purposes. Professional testing provides legally defensible results that facilitate smooth transactions and protect both buyers and sellers from future liability concerns.