Many Michigan homebuyers and sellers focus on plumbing, foundation, and inspection reports — but overlook radon.
Since as many as 1 in 4 Michigan homes may have elevated radon levels, radon testing is a smart step before finalizing any real estate deal. Michigan.gov+1
This article explains why radon matters during real estate transactions and how testing/mitigation can protect health and property value.
Why Radon Should Be Part of the Home Inspection Process
Radon is a colorless, odorless radioactive gas that enters homes through soil — cracks in foundations, sump pits, crawl spaces, etc. Macomb County+1
Long-term exposure increases lung cancer risk — radon is the second leading cause of lung cancer in the U.S. after smoking. Macomb County+1
There’s no way to know indoor radon levels without testing, no matter the home’s age or condition. Michigan Radon Control+1
How Radon Testing Works (Short-Term vs. Long-Term, DIY Kits vs. Professional Testing)
Short-term tests (48–72 hours) are common, but may fluctuate based on weather, season, ventilation, and recent foundation work.
For greater accuracy — and especially if results are near the action threshold — a long-term test or repeat testing may be advisable. American Lung Association+1
Professional testing adds credibility in real estate transactions — useful for negotiations, disclosures, and buyer peace of mind.
What Are the “Actionable” Radon Levels & What They Mean for Buyers/Sellers
The national guideline (from United States Environmental Protection Agency, EPA) recommends mitigation if a home’s radon concentration is 4.0 pCi/L or more. American Lung Association+1
Some experts suggest considering mitigation even when levels are between 2–4 pCi/L. American Lung Association+1
For sellers: a mitigation system may increase buyer confidence and potentially justify asking higher value, or at least avoid surprises during inspection.
For buyers: walking into a home with an existing mitigation system (especially professionally installed) removes a major health risk and reduces need for immediate future costs.
Radon Mitigation: What It Involves & Why Many Michigan Homes Need It
A typical mitigation system uses a vent pipe and fan to pull radon from beneath the foundation and vent it outside. American Lung Association+1
Costs in Michigan vary, but systems are generally installed within a day, with a long-term guarantee to bring levels below the EPA guideline. Michigan.gov+1
Sellers & buyers should factor in mitigation cost when negotiating price or repair credits — radon mitigation is not a “nice-to-have,” it’s a health and safety investment.
Radon Disclosure & Real Estate Transactions: Best Practices in Michigan
Recommend that sellers disclose any past radon test results or mitigation systems — transparency helps build trust and avoid liability.
Suggest that buyers request a radon test (short-term or long-term) as part of their home inspection contingency — especially crucial in radon-prone areas.
For new home buyers: even if a home is newly built, that doesn’t guarantee it’s free of radon — testing is always worthwhile. Michigan.gov+1
Benefits Beyond Health: Peace of Mind, Compliance, and Marketability
A known, mitigated radon level gives peace of mind to homeowners and future occupants.
A home with recent testing + mitigation may be more attractive to safety-conscious buyers, possibly aiding resale.
For real estate agents (like you), offering radon testing/mitigation guidance can differentiate service and add value to clients.
Conclusion
If you’re buying or selling a home in Michigan, don’t skip radon testing.
Contact a certified radon professional (such as your team) to test and, if needed, install a mitigation system.
Protect your investment, your health, and your family with one simple step: test before you close.
