Radon guide
Radon testing before buying a home
What homebuyers should know about radon test timing, reports, real estate deadlines, and when to compare mitigation providers.
Updated .
A radon test during a home purchase helps buyers understand whether mitigation should be negotiated before closing or planned shortly after moving in. The practical question is simple: which test fits the timeline, what should the report say, and which local provider can help if the result requires mitigation?
Common testing options
Short-term tests are often used during real estate timelines because they can fit inspection and objection windows. Long-term tests give a better picture of seasonal exposure, but they are less common when a closing date is near. Some providers also offer continuous monitors or transaction-ready reporting, so ask which method is appropriate for the purchase contract.
| Testing question | Why to ask |
|---|---|
| How long will the device run? | The timeline affects inspection deadlines and when the report is available. |
| Where will the device be placed? | Placement can affect whether the test follows the required protocol. |
| Who receives the report? | Buyers, agents, sellers, and lenders may need documentation. |
| What happens if the result is elevated? | You may need a mitigation quote quickly. |
What to ask the provider
Ask how the test device is placed, how long it runs, when results are available, and whether the report is accepted for the transaction. If the provider also offers mitigation, ask whether testing and mitigation recommendations are kept clear so you understand which facts come from the test and which next steps are optional quotes.
After the result
If the result is elevated, compare mitigation providers in the same city and ask for a system plan, expected timeline, warranty terms, and post-install verification. The Radon Mitigation Companies can help you shortlist testing and mitigation companies by service area, credentials, reviews, and last-checked dates before requesting quotes.