Easier. Documented post-mitigation readings below 2.0 pCi/L are a closing-ready signal that buyer agents, lender underwriters, and inspectors all read as a green flag. The system itself adds modest resale value and removes a common closing-contingency surprise.
More detail
Columbus MLS comparables consistently show that homes with documented mitigation systems sell at modest premiums (typically $3,000 to $8,000 over comparable un-mitigated homes in Zone 1 neighborhoods) and close faster (5 to 10 fewer days on market when the mitigation paperwork is in the disclosure packet). The mechanism: a documented mitigation system removes a buyer-side contingency variable from the closing process. The buyer's inspector still tests, but the seller-side has already addressed the issue and produced lender-defensible documentation. FHA, VA, USDA, and most conventional underwriters accept post-mitigation reports formatted to ANSI/AARST MAH-2023 protocols. What does NOT add value: a DIY-installed mitigation system without credentialed documentation. Resale-time inspections often flag DIY installs as non-compliant (improper fan sizing, missing dedicated electrical circuit, code-violating stack termination) and the buyer's lender can reject the system. Cost to bring a non-compliant DIY install to code is typically $400 to $1,200 and the work always falls on the seller during a sale. A credentialed install with closeout documentation avoids this. Columbus-specific note for pre-1980 homes in Clintonville, Bexley, Grandview Heights, Upper Arlington, and Worthington: these are the higher-value Columbus neighborhoods where radon is most likely to come up at inspection. A mitigation system in these neighborhoods is closer to expected-by-buyers than uncommon, and its presence is mildly positive at the closing table rather than mildly negative.