Call and you will talk to someone who can answer the question. Or send a message below — we respond the same day, Monday through Saturday.
Monday–Saturday, 7am–7pm
None of this is required — it just makes the first call faster and gets you a more accurate number.
Duluth, Hermantown, Proctor, Rice Lake, Duluth Township, Two Harbors, Esko, and Cloquet — and the rest of St. Louis County on request.
In a real estate deal with a deadline? Say so when you call. A short-term test needs a 12-hour closed-house period before it starts plus a 48-hour run, so timing matters. See real estate radon testing for how the schedule usually works.
Bring us the number and the conditions the test ran under. A short-term test that was disturbed by open windows, or one placed too close to an exterior wall, can read misleadingly in either direction. Sometimes the right answer is a second measurement with a continuous monitor before anyone talks about a system, and sometimes the number is clear enough to act on. We will tell you which situation you are in.
Call rather than emailing. A compliant short-term test needs the house closed for 12 hours before the device starts and then runs a minimum of 48 hours, so the calendar is usually the binding constraint. Tell us your deadline first and we will tell you honestly whether it fits.
Look at the U-tube manometer on the pipe first — if the liquid is level on both sides, the fan is not pulling. That is usually a failed fan, which is a straightforward replacement. Either way the right follow-up is a fresh test, because the point is the number in the air, not the fan.
Good timing. Testing during the heating season gives you the more conservative number, and if a system is needed you get it installed, permitted, labeled, and confirmed on your schedule instead of during a two-week inspection window with a buyer waiting. See radon testing for how seasonal timing affects the result.
A test settles the question either way. If the number is fine, you are done for two years. If it is not, you will know exactly what fixing it costs.