Radon testing for title companies means building EPA-protocol radon results into the closing timeline so a test result never becomes the reason a deal falls apart. Title companies handle this differently than a homeowner testing their own house on a Saturday afternoon: a slow test, a disputed result, or a missed disclosure form can push a closing date by weeks and put a purchase agreement at risk.
- Radon testing for title companies works best when ordered the day a purchase agreement is signed, not the week of closing.
- Michigan requires radon disclosure on seller property disclosure statements, and title companies need that paperwork in the closing file.
- FHA and VA loans in Michigan often condition on radon results below 4 pCi/L, so title companies should flag high results early.
- A short-term test takes 48 hours minimum; a failed result plus mitigation can add 5-10 business days to a closing.
- Michigan Radon Control coordinates directly with title companies and closing coordinators to keep radon results from becoming a last-minute surprise.
Why radon testing matters for title companies
A title company's job is to close the deal clean: clear title, funded escrow, signed disclosures, no surprises at the table. Radon is one of the few line items that can blow up all four at once if it's handled late.
Michigan sits on glacial till soil and karst limestone geology that produces some of the highest indoor radon readings in the country, so a radon contingency shows up in a meaningful share of Michigan purchase agreements. When a title company treats radon as an afterthought instead of a checklist item tracked from contract to close, the result is usually a scheduling scramble two days before closing. Radon testing companies for real estate closings in Michigan exist specifically because this timing problem repeats across nearly every transaction with a radon contingency.
The fix isn't complicated. It's sequencing: know when the test needs to happen, know what a failed result triggers contractually, and know who's responsible for ordering the retest after mitigation. Get that sequence wrong once and you'll remember it for every closing after.
Verify a radon contingency exists in the purchase agreement
Start here, not with scheduling. Michigan purchase agreements frequently include a radon testing contingency with a deadline measured in days from acceptance, and title companies that don't flag this on day one lose the ability to control the timeline later.
- Confirm the contingency deadline and diary it against the closing date
- Note whether the agreement specifies a testing standard (short-term vs. long-term)
- Check whether the buyer or seller is responsible for ordering the test
- Identify the action-level threshold written into the contract (usually 4 pCi/L, matching the EPA action level)
- Flag FHA or VA financing early, since those loan types often carry their own radon conditions
Schedule the test the same week the contingency clock starts
A short-term radon test needs a minimum of 48 hours of closed-house conditions to produce a valid result, and lab turnaround adds another 1-3 business days on top of that. Waiting until the contingency deadline is close cuts out any room for a retest if the first result is inconclusive or contested.
- Order testing within 3-5 business days of contract acceptance
- Confirm the property will be in closed-house conditions for the full test window
- Ask whether the test uses continuous monitors or passive charcoal kits, since results and chain-of-custody differ
- Build a buffer of at least one week between expected results and the closing date
Confirm the testing method meets EPA and state protocol
Not every test result holds up under scrutiny in a real estate transaction. A test performed by an NRPP-certified technician using EPA protocol carries weight that a DIY charcoal kit picked up at a hardware store doesn't, especially if a buyer's attorney or lender questions the result later.
- Confirm the technician or lab holds NRPP or NRSB certification
- Verify the device used is EPA-listed for real estate transaction testing
- Require documentation of closed-house conditions during the test window
- Ask for a chain-of-custody record if the test involved courier or mail-in lab analysis
DIY kits mailed to a lab are a legitimate low-cost option for a homeowner curious about their own house. They're a weaker option for a transaction where a contested result could delay closing or end up in a dispute, because there's no third-party technician who can testify to test conditions.
Review results against Michigan's disclosure requirements
A radon result changes what goes on the seller's disclosure statement, and title companies need that paperwork correct before it hits the closing table. Michigan sellers who know about elevated radon levels are expected to disclose them, and a missing or inconsistent disclosure form is one of the more common closing-day holdups.
- Match the disclosed radon status to the actual test result on file
- Confirm the disclosure form is signed and dated before closing documents are finalized
- Review Michigan's radon disclosure requirements with the listing agent if anything is unclear
- Keep a copy of the test report in the closing file, not just the disclosure form
Coordinate an escrow holdback when levels exceed 4 pCi/L
A result above the EPA action level of 4 pCi/L doesn't have to kill a closing date. Most Michigan purchase agreements let the parties negotiate an escrow holdback that funds mitigation after closing, which keeps the transaction moving instead of restarting it.
- Calculate a holdback amount based on a mitigation estimate from a licensed contractor
- Set a deadline for mitigation completion, typically 30-60 days post-closing
- Require a post-mitigation retest result before releasing the holdback funds
- Document the holdback terms explicitly in the closing statement
Order mitigation and a confirming retest before releasing funds
A radon mitigation system installation generally takes a single day, and a confirming retest needs another 48 hours of closed-house conditions after the fan is running. Title companies managing an escrow holdback should track both dates, not just the installation date, because the holdback release depends on the retest number, not the installation itself.
- Confirm the contractor is NRPP-certified before authorizing holdback funds
- Schedule the retest no sooner than 24 hours after system activation
- Require the retest result in writing before releasing escrow
- Keep the mitigation invoice and retest report together in the file for audit purposes
A title company that treats radon as a contingency to track, not a form to file, closes deals faster and fields fewer angry calls from buyers' agents.
Comparing radon testing options for title companies
| Option | Best for | Key limitation |
|---|---|---|
| DIY charcoal test kit | Low-stakes situations with no contingency dispute risk | No third-party chain-of-custody; weak if a result is challenged |
| Home inspector add-on test | Buyers bundling radon into a general inspection | Inspector may not hold NRPP certification specific to radon |
| Continuous radon monitor | Transactions needing tamper-resistant, real-time data | Requires a technician visit to place and retrieve the device |
| NRPP-certified radon company | Any transaction with an FHA/VA loan or a disputed contingency | Requires scheduling lead time versus a same-day DIY kit |
For most title companies, the NRPP-certified option is the one that survives scrutiny from lenders, attorneys, and buyer's agents. Michigan Radon Control performs testing to that standard specifically because transaction-linked results need to hold up if someone questions them after the fact.
Coordinate radon testing for your next closing
NRPP-certified testing built around your closing timeline, not the other way around.
Common mistakes title companies make with radon testing
- Ordering the test too late. Waiting until a week before closing leaves no room for a retest if the first result comes back elevated or gets challenged.
- Accepting an unverified DIY result for a financed transaction. FHA and VA lenders generally want protocol-compliant testing, and a hardware-store kit can trigger a second, delayed test if flagged during underwriting.
- Missing the disclosure-to-result match. A seller disclosure that doesn't match the actual test report on file is one of the fastest ways to generate a closing-day dispute.
- Setting a holdback amount without a real mitigation quote. Guessing at mitigation cost leads to underfunded escrow accounts that leave sellers on the hook after closing.
- Skipping the post-mitigation retest. Releasing holdback funds based on the mitigation invoice alone, without a confirming retest, defeats the purpose of the holdback in the first place.
FAQ
Do title companies require radon testing in Michigan?
Title companies don’t require radon testing by default, but many Michigan purchase agreements include a radon contingency negotiated between buyer and seller. When that contingency exists, the title company is responsible for tracking the deadline and confirming disclosure paperwork matches the test result.
How long does radon testing take before a closing?
A short-term radon test needs a minimum of 48 hours of closed-house conditions plus 1-3 business days for lab or device readout. Title companies should order testing within the first week after contract acceptance to leave room for a retest if needed.
What radon level triggers mitigation before closing?
Most Michigan purchase agreements use the EPA action level of 4 pCi/L as the trigger point for mitigation or an escrow holdback. Levels between 2 and 4 pCi/L sometimes prompt negotiation even though they’re below the federal action threshold.
Can a DIY radon test kit be used for a real estate closing?
A DIY kit can be used, but it carries less weight if a result is disputed because there’s no third-party chain-of-custody documentation. Transactions involving FHA or VA financing generally hold up better with an NRPP-certified technician’s test.
How does an escrow holdback for radon mitigation work?
An escrow holdback sets aside funds at closing based on a licensed contractor’s mitigation estimate, released after mitigation is complete and a retest confirms the level is below the action threshold. The holdback amount and release conditions need to be documented in the closing statement.
What does Michigan’s radon disclosure law require from sellers?
Sellers who know about elevated radon levels in their home are expected to disclose that information on the seller’s property disclosure statement. Title companies should confirm the disclosure matches the actual test result before finalizing closing documents.
How fast can a failed radon test be fixed before closing?
A mitigation system installation typically takes one day, followed by a 48-hour closed-house retest to confirm the fix worked. Title companies managing a tight timeline usually need 5-10 business days total between the failed result and a confirmed retest.
Do FHA and VA loans have specific radon requirements in Michigan?
FHA and VA loans don’t have a uniform national radon rule, but individual lenders and appraisers in Michigan frequently condition financing on a result below 4 pCi/L. Title companies should confirm the specific lender’s requirement early in the transaction.
One last thing
The closings that go sideways over radon almost never fail because of the test itself. They fail because nobody diaried the contingency deadline against the actual closing date, and the two collided with three days left on the calendar. Build the radon timeline into the file the day the purchase agreement is signed, not the day someone asks where the results are, and 2026 closings will move noticeably smoother than they did before.
Related guides
- Radon testing timelines for Michigan home closings
- Radon testing requirements for FHA and VA loans in Michigan
- How to schedule a radon test before a home appraisal