Radon testing for home sellers in Huntsville, Alabama
Radon testing is a common part of a home sale. The EPA suggests sellers test before listing, so a high result can be dealt with on your schedule instead of in the middle of a contract. If your home tests at 4.0 pCi/L or higher, we can connect you with an independent mitigation contractor.
Why test before you list
Buyers often order their own radon test during inspection. Knowing your result first gives you time to fix a problem, get more than one estimate, and keep documentation ready. Madison County is in EPA Radon Zone 1, the highest-potential zone, so buyers here commonly ask about it.
A simple seller timeline
Test
Use a qualified tester or a home kit. A short-term test runs at least 48 hours; keep windows and doors closed as directed.
Follow up if needed
If a result is 4.0 pCi/L or higher, the EPA says to follow up with a second test. If the first result is 8 pCi/L or higher, do the second short-term test right away and average the two.
Fix before the sale
The EPA says fixing before the sale is preferable. Otherwise the repair can be negotiated with the buyer.
Retest and keep records
Test after the fan has run at least 24 hours, and keep all reports and receipts to share with buyers.
What buyers may ask for
- A retest, if your test is more than two years old.
- A retest after renovations or changes to the foundation or HVAC.
- A test of the lower level if it was not tested before or will be used as living space.
- Proof of who performed the test and where the device was placed.
Testing options for a sale
Two short-term tests at once
Two devices side by side for at least 48 hours, averaged.
Back-to-back tests
Two identical tests one after another in the same spot.
Continuous monitor
An electronic monitor that records hourly readings and can show tampering.
Closed-house conditions should begin 12 hours before a 2 to 4 day test. Choose a qualified tester and protect the test from tampering.
If your home already has a radon system
Confirm the fan is running and the warning device is working, and keep the installer’s paperwork and warranty. Ask whether the warranty is transferable to the buyer.
Disclosure
Disclosure rules vary by state. Ask your real estate agent or an attorney what applies to your sale. This page is general information, not legal advice.
Radon and home selling questions
Should I test before listing my home?
The EPA suggests it. You will know your result and have time to act before a buyer’s test.
What if my result is 4.0 pCi/L or higher?
Follow up with a second test. If it confirms the level, fixing before the sale is preferable, or the repair can be negotiated.
How long does a seller’s test take?
A short-term test takes at least 48 hours. Many run 2 to 7 days.
Will buyers retest?
They may, especially if your test is over two years old, or after renovations, or for a lower level.
Do I have to disclose radon results?
Rules vary by state. Ask your agent or an attorney.
How long does installing a system take?
Many installations take a day or less. Complex homes take longer.
Can a mitigation system be transferred to the buyer?
Ask the contractor whether the warranty is transferable and keep the paperwork.
Get a free radon quote for your sale
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