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Testing & Abatement Companies in Welch, MN

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4.9(197 Verified Ratings)

Cottage Grove, MN·

1st DeFense Radon Testing and Mitigation, LLC

Radon Gas - Testing, Radon Gas - Abatement

"Steve & his co-worker did and excellent job! Steve was very professional, and was willing to work WITH me the homeowner to get the best possible outcome. When the unfortunate circumstances required a second system to be added Steve gave me an extremely reasonable quote for the second system and provided a guarantee not to exceed a maximum cost (which he was under by the way). Very happy with the results an am confident in the long term effectivity of the system. Communication was swift and complete. Could not be happier!!"

Susan M. in July 2019

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4.7(25 Verified Ratings)

Owatonna, MN·

EnviroGo Asbestos Solutions

Testing & Abatement Services

"Outstanding experience"

0421AC277AA224D073284DCA5F5AA8D536C7A02E6ECF195708CB3D7ECA7F33BF 6. in October 2025

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4.8(124 Verified Ratings)

Rochester, MN·

American Waterworks

Radon Mitigation, Basement Waterproofing, Concrete Repair , and 2 more

"Excellent job and great customer service"

Randall G. in December 2023

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Welch Testing & Abatement Companies are rated 4.9 out of 5 based on 353 reviews of 353 pros.

The HomeAdvisor Community Rating is an overall rating based on verified reviews and feedback from our community of homeowners that have been connected with service professionals. See individual business pages for full, detailed reviews.

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Testing & Abatement Companies in Welch, MN

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1st DeFense Radon Testing and Mitigation, LLC

EnviroGo Asbestos Solutions

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Testing & Abatement Companies in Welch, MN

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Service Pros

1st DeFense Radon Testing and Mitigation, LLC

EnviroGo Asbestos Solutions

American Waterworks

Top Mold & Asbestos Services Projects

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Other Cities in Minnesota

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