Radon Knowledge Base

Additional General Radon Question Index

This small page is an additional general radon question index. It keeps a few review questions grouped by their topic bucket without creating individual question pages or inventing detailed answers where the source file does not include them. Homeowners can use the list to see what kinds of follow-up questions commonly arise around readings, monitors, testing, passive systems, and mitigation. American Radon Systems focuses on practical home fixes. If a question points back to an elevated result, a passive rough-in, a noisy fan, a changed lower level, or an existing system concern, Bill can review the property and explain the mitigation options.

As a seller, do I have to disclose a previous high radon test?

For the radon side, focus on a reliable current reading and a clear mitigation path if the level is elevated. Real-estate paperwork, repair allowances, rental responsibilities, and closing decisions should be handled by the people managing the transaction. Bill can help with the practical radon part: what the number means, whether mitigation makes sense, and what a proper system would involve. If the reading is 4.0 pCi/L or higher, EPA recommends fixing the home. Between 2.0 and 4.0 pCi/L, EPA says to consider mitigation, especially if the space is used often.

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My house tested high when I bought it. Do I have to disclose that to my future buyer?

For the radon side, focus on a reliable current reading and a clear mitigation path if the level is elevated. Real-estate paperwork, repair allowances, rental responsibilities, and closing decisions should be handled by the people managing the transaction. Bill can help with the practical radon part: what the number means, whether mitigation makes sense, and what a proper system would involve. If the reading is 4.0 pCi/L or higher, EPA recommends fixing the home. Between 2.0 and 4.0 pCi/L, EPA says to consider mitigation, especially if the space is used often.

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What is Illinois's disclosure requirement for radon in home sales?

For the radon side, focus on a reliable current reading and a clear mitigation path if the level is elevated. Real-estate paperwork, repair allowances, rental responsibilities, and closing decisions should be handled by the people managing the transaction. Bill can help with the practical radon part: what the number means, whether mitigation makes sense, and what a proper system would involve. If the reading is 4.0 pCi/L or higher, EPA recommends fixing the home. Between 2.0 and 4.0 pCi/L, EPA says to consider mitigation, especially if the space is used often.

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My lease doesn't mention radon at all. Is the landlord required to disclose radon issues in Illinois?

For the radon side, focus on a reliable current reading and a clear mitigation path if the level is elevated. Real-estate paperwork, repair allowances, rental responsibilities, and closing decisions should be handled by the people managing the transaction. Bill can help with the practical radon part: what the number means, whether mitigation makes sense, and what a proper system would involve. If the reading is 4.0 pCi/L or higher, EPA recommends fixing the home. Between 2.0 and 4.0 pCi/L, EPA says to consider mitigation, especially if the space is used often.

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Related Help

Contact Bill

Questions are fine too. Call or text Bill, or send your address and contact info, and he will take it from there.

Reviewed by Bill Dahlstrom, Illinois radon mitigation license RNM2018212.