Should I Get A Radon Test With Home Inspection?

When It Makes Sense

• Good fit: You are buying a home in a state or region identified by health agencies as having high indoor radon levels, and the seller has not provided recent radon data. Including a radon test in the inspection can reveal a hidden health risk before closing.
• Good fit: The property is older or has a basement/ground‑level living space where radon can accumulate, and you plan to stay in the home for several years. Early detection allows you to budget for mitigation if necessary.

When You Should Avoid It

• Warning sign: You live in a region with historically low radon potential (e.g., coastal areas with low‑lying soils) and have a recent, certified radon test showing safe levels. Adding another test may be unnecessary expense.
• Warning sign: The home inspection is already at the maximum budget allowed by your lender, and you have a separate, low‑cost radon testing kit you can use after the purchase. In this case, postponing the test can keep costs manageable.

Pros and Cons

Pros

• Provides a professional, third‑party assessment of radon levels, which can be useful in negotiations and for future resale disclosure.
• Identifies a health hazard early, allowing you to plan mitigation (typically a sub‑slab depressurization system) before occupants are exposed.

Cons

• Increases the overall cost of the home inspection, which may be a concern for budget‑constrained buyers.
• If the test is performed only once during the inspection, it may not capture seasonal variations; a follow‑up test could be required, adding further expense.

Decision Checklist

• Is the home located in a region where the Environmental Protection Agency (EPA) or local health department recommends radon testing?
• Does the property have features (basement, crawl space, low‑lying foundation) that facilitate radon accumulation?
• Do you already have recent, reliable radon test results for the home?

Alternatives to Consider

If you decide against a radon test during the home inspection, you can purchase a do‑it‑yourself short‑term radon test kit after closing. These kits are inexpensive, easy to use, and can be repeated across seasons for a more comprehensive picture. Alternatively, you could negotiate a clause in the purchase agreement that requires the seller to provide a certified radon test report or to perform mitigation if levels exceed the EPA action level.

Final Recommendation

For most buyers in high‑radon areas or purchasing homes with basements, adding a radon test to the home inspection is a prudent step that can uncover a serious health risk and strengthen your negotiating position. In low‑risk regions or when recent reliable data already exist, you may opt to defer testing and use an affordable follow‑up kit after purchase. Always consult a certified radon professional or a qualified home inspector to interpret results and discuss mitigation options when needed.