Who's behind this
About RadonCost
A small, independent site with one job: put real numbers on radon — what levels actually measure in your area, and what testing and mitigation actually cost.
Who runs this site
RadonCost is built and maintained by the team behind Colorado Radon Check, a Colorado radon-information site that works directly with a family-owned, NRPP-affiliated mitigation crew on the Front Range. Working alongside people who climb into crawlspaces for a living is where our cost numbers come from: the prices on this site reflect real quotes and real installs, not scraped averages.
We started with Colorado because that's where we live and test. RadonCost extends the same approach — public health data, cited to the source, with honest cost context — to states where radon is just as serious but good local numbers are harder to find.
What we publish, and what we don't
Every radon statistic on this site traces to a public dataset — CDC EPHT lab data, or a state program like Pennsylvania DEP's ZIP-level test results — and is labeled with its vintage and sample size. Our methodology page documents every source and calculation. Where we don't have real data for a place, we don't publish a page for it. We'd rather cover fewer places honestly than every county thinly.
How this site makes money
Today, mostly it doesn't. The Colorado site refers homeowners to the mitigation crew we work with; RadonCost may eventually do the same through vetted local pros. We don't sell test kits, we don't run display ads, and no company pays to influence a number on this site.
Contact
Questions, corrections, or a data source we should know about: email [email protected]. Corrections to published numbers get fixed, with the change noted on the affected page.