MA
Radon Test Kits in Massachusetts
The state no longer gives out free kits and points to Kansas State University's $20 mail-in kit. One and two family homes built after January 2, 2015 in Essex, Middlesex, and Worcester counties must have a passive radon system. Test anyway.
We checked this on October 1, 2026. Confirm the official page before you travel. Prices and stock change.
Where to get a kit
Kansas State University mail-in kit: $20
Mail-in lab kit, lab fee included. Mail it back within 10 days.
Or call 1-800-767-7236.
American Lung Association radon test kit store: $18
Short-term kit $18, long-term $38. Not sold in New Jersey.
Massachusetts radon testing guidance
Massachusetts DPH says it no longer offers free radon kits to the general public and points you to discounted kits from Kansas State University.
Buy the Kansas State University short-term kit, or buy a short-term kit online or at a hardware store.
One test, or keep watching
One test: $20
Kansas State University mail-in lab kit, 2 to 4 days, all costs included. Good for a first look. One test is a snapshot, not a pattern.
Checked October 1, 2026.
Keep watching: Airthings Corentium Home 2, $179.99
New readings every day for as long as you own it. Good if you want to know, not guess. Price checked October 1, 2026.
If you buy through our Airthings link, we may earn a commission. You don't pay extra. Add your name and shipping, then enter ARS10-10OFF. The link does not apply the code by itself.