Office in Fresno, CA
20 Radon Mitigation Pros in California (2026)
Browse 20 curated radon mitigation pros across 8 cities in California. Compare credentials, read reviews, and request quotes.
20 providers
8 cities
CITIES AND AREAS IN CALIFORNIA
San Jose
4 providers SC
Sigura Construction, Inc. Unclaimed XF
Xalos Foundation Support Unclaimed Listed providers
0 Sponsored — spots open View all →
Los Angeles
3 providers AI
Andersen Integrated Services Unclaimed RC
Radon California Unclaimed Listed providers
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Oakland
2 providers NF
NorCal Foundation Support Unclaimed EE
Essel Environmental Unclaimed Listed providers
0 Sponsored — spots open View all →
San Diego
2 providers EA
Earth Air Heating & Cooling Unclaimed T
Terrever Unclaimed Listed providers
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Long Beach
1 provider MR
MG Remediation, Inc. Unclaimed Listed providers
0 Sponsored — spots open View all →
Sacramento
1 provider NF
NorCal Foundation Support Unclaimed Listed providers
0 Sponsored — spots open View all →
Fresno
0 providers Listed providers
0 Sponsored — spots open View all →
San Francisco
0 providers Listed providers
0 Sponsored — spots open View all →
Ventura County area
4 providers Radon Be Gone
Radon Solutions California
Radon California
Listed on this page · no city page yet
Gold Country area
1 provider Vanguard Property Inspections Inc.
Listed on this page · no city page yet
Inland Empire area
1 provider MG Remediation, Inc.
Listed on this page · no city page yet
California at a Glance
20
Total providers
8
Cities covered
$800-$1,500 per mitigation install ($150-400 for testing only)
Typical price range
3
NRPP certified
18%
Certification rate
How to Find a Radon Mitigation Contractor in California
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Pick Your City
Select a city above to see all listed radon mitigation pros in that area with credentials and reviews.
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Compare Providers
Check NRPP, read reviews, and compare up to 5 providers side by side.
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Request Quotes
Submit your project details to multiple providers at once. Free, no obligation, no middlemen.
MORE PROVIDERS IN CALIFORNIA
Listed here because we don’t have a city page for their area yet.
Ventura County area (4)Area page →
Office in Long Beach, CA
Office in Thousand Oaks, CA
Office in Moorpark, CA
Gold Country area (1)Area page →
Office in Sacramento, CA
Inland Empire area (1)Area page →
Office in Upland, CA
Other California providers (office address not listed)
Frequently Asked Questions
How much does a radon mitigation contractor cost in California?
Radon Mitigation Contractor rates in California typically range from $800-$1,500 per mitigation install ($150-400 for testing only) depending on duration, complexity, and turnaround time. Expedited work and specialized equipment can add to the cost. Rates vary between metro areas and smaller markets — request quotes from multiple providers on RadonTrust to compare.
What certifications should I look for?
Ask providers which credentials are relevant to your project, including NRPP. Confirm any listed credential with its issuing organization and check the provider's experience with your specific needs. A directory listing is not independent verification of licensing or qualifications.
How many providers are in California?
RadonTrust currently lists 20 radon mitigation pros across 8 cities in California. Browse by city to find providers near you.
How do I request quotes from multiple providers?
Click into any city in California, select up to 5 providers using the "Add to Quote" button, then submit your project details. Your request is sent to the selected providers. Availability and response times vary.
Are you a Radon Mitigation Contractor in California?
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