Radon Testing & Mitigation in St. Louis, MO

4contractors listed.

Radon Contractors in St. Louis

St. Louis Radon

✓ Verified

St. Louis Radon Test and Mitigation is a fully licensed and insured radon testing and mitigation company providing comprehensive radon detection and mitigation services to the St. Louis area and Illinois.

Radon MitigationRadon Testingradon_inspection
fully licensed and insuredAARST membercertified radon professionals
Service Area
St. Louis area and Illinois

St. John Environmental Consulting, LLC

✓ Verified

St. John Environmental Consulting provides testing for hazardous materials including asbestos, lead paint, mold, and PCBs in residential, commercial, and government buildings across the St. Louis region.

Radon MitigationRadon Testingradon_inspection
AHERA accredited inspectorLead Risk Assessor (Missouri, Illinois, Kansas, Mississippi)Asbestos Inspector (Missouri, Illinois, Kansas, Arkansas, Oklahoma, Kentucky, Mississippi)
Service Area
St. Louis City & County, St. Charles, Jefferson County, Illinois, Kansas, Mississippi, Arkansas, Oklahoma, Kentucky

Advanced Environmental Services Inc

✓ Verified

Advanced Environmental Services, Inc. is an environmental remediation firm specializing in mold remediation, asbestos abatement, lead removal, PFAS testing and remediation, and fire/water damage restoration for residential and commercial clients.

Radon MitigationRadon Testingradon_inspection
Minority Business Enterprise (MBE)Native American CompanyUnion Signatory Contractor - Laborers' International Union of America Local 110 and Local 42
Service Area
St. Louis, MO; St. Charles, MO; Columbia, MO; throughout Missouri

American Environmental

✓ Verified

American Environmental provides certified environmental inspections, testing, and consulting services including asbestos, mold, and water testing for the Saint Louis Metro Area.

Radon MitigationRadon Testingradon_inspection
Certified environmental professionalsVarious environmental discipline certifications
Service Area
Saint Louis Metro Area, Missouri

St. Louis homeowners face common crawl space and foundation challenges driven by local soil and climate conditions. Moisture control, encapsulation, and structural repair are among the most-requested services.

What to Expect

Crawl space encapsulation in the St. Louis area typically ranges from $5,000–$15,000 depending on square footage and moisture severity. Foundation repair costs vary widely based on the scope of work. Get multiple quotes from verified contractors.

Coverage Areas

St. Louis-area contractors typically serve surrounding communities within a 30–50 mile radius.

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