Test for radon gas
Why it matters
Radon is the leading cause of lung cancer among non-smokers. It's an invisible, odorless gas that can seep into your basement or lower levels from the soil. EPA recommends retesting every two years and after any HVAC, foundation, or basement work.
Stop forgetting to do this.
Hearth generates a personalized maintenance schedule so you never miss another test for radon gas.
How to do it
- 1
Buy a short-term radon test kit (EPA-approved, ~$15–$40 at hardware stores or online).
- 2
Close all windows and exterior doors for 12 hours before starting the test.
- 3
Place the kit in the lowest livable area of your home — basement if finished, otherwise main floor — 20 inches off the floor, away from drafts.
- 4
Leave it undisturbed for the duration specified (typically 48 to 96 hours).
- 5
Seal the kit and mail it to the lab on the indicated date; results arrive in 1–2 weeks.
- 6
If results are 4.0 pCi/L or higher, contact a certified radon mitigation contractor; 2.0–3.9 pCi/L is borderline and warrants a follow-up long-term test.