Get in touch

The most useful message we get. Tell us the county, the figure and what you believe it should be, and we will check it against the source release. If the error is ours we fix it in the next data build; if it is the agency’s, we will tell you that too. See the methodology page for what each source does and does not report.

If you are a certified radon measurement or mitigation professional and want to receive enquiries from homeowners in your service area, tell us which counties you cover and which certification you hold - NRPP, NRSB, or a state licence.

The joined county tables are free to download from the downloads page with no signup. If you need a cut we do not publish, ask - we would rather send you the right table than have you scrape the wrong one.

To ask what we hold or to have a quote request deleted, email the same address with “privacy” in the subject. We hold very little, so most of these resolve the same day. The full commitment is on the privacy page.

We cannot interpret your radon test result, advise on symptoms, or tell you whether your home is safe. Those are questions for a certified radon professional and a clinician respectively, and answering them is exactly what this site does not do.