Find a Certified Radon
Mitigator Near You
Every professional is NRPP or NRSB certified — mitigators only, not testers. Search free. Verify credentials. Get your home safe.
3,052+
Certified Mitigators
50
States Covered
100%
NRPP / NRSB Verified
Free
To Search
High-Radon States
EPA-designated elevated radon risk zones
CO
Colorado
CT
Connecticut
ID
Idaho
IL
Illinois
IN
Indiana
IA
Iowa
KS
Kansas
KY
Kentucky
ME
Maine
MD
Maryland
MA
Massachusetts
MI
Michigan
MN
Minnesota
MO
Missouri
MT
Montana
NE
Nebraska
NH
New Hampshire
NJ
New Jersey
NY
New York
ND
North Dakota
OH
Ohio
PA
Pennsylvania
RI
Rhode Island
SD
South Dakota
UT
Utah
VT
Vermont
VA
Virginia
WV
West Virginia
WI
Wisconsin
WY
Wyoming
How It Works
Getting your home safe is a 3-step process
01
Search Your State
Find certified mitigators near you — NRPP and NRSB verified, mitigators only.
02
Compare & Contact
View credentials, check certification status, and get quotes from multiple pros.
03
Breathe Easy
Professional installation takes one day. Radon levels drop immediately after.
Why RadonBase?
What makes us different from other directories
Mitigators Only
Other directories mix testers and mitigators together. Every pro on RadonBase is certified to fix your radon problem — not just measure it.
Verified Credentials
Every listing is cross-checked against NRPP and NRSB databases. You can trust that certifications are real and current.
All 50 States
Whether you're in high-radon Colorado or lower-risk California, we have certified professionals in every state.
Free for Homeowners
Searching is always free. No account required. No spam. Just find a mitigator and get your home tested.
For Professionals
Are You a Certified Mitigator?
Your listing is already live. Claim it free to add your contact details, or upgrade to Featured for top placement and lead notifications.
Claim Your Free Listing →For DIYers
Want to Fix It Yourself?
Professional-grade radon fans, complete DIY kits, pipe fittings, and monitors — everything shipped to your door.
Shop Equipment →New to radon mitigation?
Read our guides on costs, certifications, and whether DIY is right for your home.
Read the Blog