Vermont Department of Health · Radon Program
Vermont radon (air)
No state company roster to republish. Updated / retrieved 2026-10-23 (US/Pacific).
If you are not sure you need a pro yet, see when a DIY radon test kit is enough or how to test a home for radon.
The Vermont Department of Health radon page does not publish a statewide list of radon testing or mitigation companies to republish. This page does not invent company names, phones, licenses, or addresses to fill that gap.
Who to hire: the Health Department says to contact a certified radon mitigation contractor and to search the national programs: NRPP Find a Pro or NRSB Find a Professional. Compare proposals against the ANSI/AARST radon standards and get more than one estimate.
What the Vermont Department of Health says
- One in seven Vermont homes has elevated levels of radon. Neighboring homes can have very different levels, so test your own home.
- Best test: a long-term radon-in-air kit for 3 to 12 months, ideally including a heating season. The Health Department Lab sells long-, medium- and short-term kits; order online or call 802-338-4736 or 800-660-9997 (toll-free in Vermont).
- Levels: Vermont outdoor air averages 0.4 pCi/L and homes about 2.5 pCi/L. The action level is 4.0 pCi/L; the Health Department and EPA also encourage lowering levels below 2.0 pCi/L.
- Fixes: active soil depressurization (vent pipe and fan) is the most common system; HRV/ERV ventilation suits moderate levels or supplements ASD. Retest after installation.
- Retesting: if levels were low, retest every five years or after major changes to the house; with a mitigation system, test every two years.
- Real estate: Vermont law does not require a radon test in a real estate transaction. For quick tests, EPA recommends two short-term devices side by side.
- Questions: Vermont Radon Program 802-863-7220 or 800-439-8550 (toll-free in Vermont), radon@vermont.gov (as printed on the Health Department radon page).
- Radon can also be in well water; this index page covers indoor air only.
Official sources
- Vermont Department of Health — Radon (retrieved 2026-10-23; testing, action level, mitigation, contacts)
- Vermont Department of Health — Testing for Radon in Your Home (PDF fact sheet) (retrieved 2026-10-23)
- NRPP Find a Pro (named by the Health Department)
- NRSB Find a Professional (named by the Health Department)
- U.S. EPA Radon
This index does not rank contractors or take referral fees. No Amazon kit links on this state page. This page covers indoor air only, not well water.