Professional continuous-monitor testing for Treasure Valley homes and real estate deals. And if you're just curious with no deadline, we'll point you to Idaho's free kit first, because the goal is your number, not your money.
Schedule a test → (208) 510-0970Here's the honest version most companies won't lead with: Idaho gives away radon test kits. The Idaho Department of Health and Welfare offers a free short-term kit, one per address every two years, at radonidaho.org, plus a library lending program for radon monitors at participating public libraries statewide. If you're just curious about your house and you're not on a deadline, order the free kit. If it comes back under 2.0, enjoy the peace of mind, no phone call needed.
Where professional testing earns its keep is speed and documentation. A continuous radon monitor placed in your home delivers a defensible, hour-by-hour result in about 48 hours, the standard for real estate transactions, for verifying that a mitigation system actually works, and for settling a borderline kit result near the 4.0 line.
Under 2.0: good, retest in two years. 2.0–3.9: gray zone; the WHO recommends acting at 2.7, and many families mitigate here. 4.0 and up: the EPA says fix the home. The higher the number, the sooner. Mitigation details and pricing are on our mitigation page.
Both are legitimate. The Idaho Department of Health and Welfare offers a free short-term kit per address every two years at radonidaho.org, and it's a great first screen. Hire a professional with a continuous radon monitor when you need speed or documentation: real estate transactions, verifying a mitigation system, or when a kit result lands near the 4.0 line and you want a definitive number in 48 hours.
A professional continuous-monitor test delivers a documented result in about 48 hours. Short-term kits run 2 to 90 days including mail-in lab time. Long-term tests run more than 90 days and capture your true annual average.
Winter. Homes are closed up, fresh-air exchange is lowest, and radon concentrates, so winter readings show your worst case. But if you're buying, selling, or just haven't tested, don't wait for a season. The EPA recommends testing every two years and after any remodel.
No. Radon varies house to house on the same street because it depends on the soil under each foundation, the construction, and the entry paths. Idaho DHW has found high homes in every county in the state. The only way to know your number is to test your house.
The EPA action level is 4.0 pCi/L: at or above it, fix the home. The World Health Organization recommends acting at 2.7. Between 2.0 and 4.0 is a judgment call many families make in favor of mitigating, since no radon level is considered fully safe.
48-hour documented results across Boise, Meridian, Eagle, Nampa, and Caldwell.
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