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Verified Reviews for Radon Detection And Reduction pros in New Underwood, SD

*The Angi rating for Radon Detection And Reduction companies in New Underwood, SD is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Radon Detection And Reduction needs.

*The HomeAdvisor rating for Radon Detection And Reduction companies in New Underwood, SD is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Radon Detection And Reduction needs.

Last update on November 16, 2025

Find Radon detection and reduction specialists in New Underwood

Avatar for Rapid Radon Removal

Rapid Radon Removal

5.00(
2
)
•Approved Pro

Rapid Radon Removal

5.00(
2
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
12 years of experience

We're a locally owned and operated company with over 10 years of industry experience. We value honesty and integrity and stand behind our work. We specialize in a variety of residential and commercial testing services. We've earned a solid reputation for testing and mitigation. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building long-term relationships with our clients and guarantee your satisfaction!

"Jeff is very knowledgeable and thorough about radon removal. He is highly qualified in radon mitigation and has extensive experience with construction. Very personable, considerate, and responsive. I highly recommend him and will do so for all my friends."

Erica H on May 2021

We're a locally owned and operated company with over 10 years of industry experience. We value honesty and integrity and stand behind our work. We specialize in a variety of residential and commercial testing services. We've earned a solid reputation for testing and mitigation. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building long-term relationships with our clients and guarantee your satisfaction!

"Jeff is very knowledgeable and thorough about radon removal. He is highly qualified in radon mitigation and has extensive experience with construction. Very personable, considerate, and responsive. I highly recommend him and will do so for all my friends."

Erica H on May 2021

Avatar for Blackburn Foundation Repair, LLC

Blackburn Foundation Repair, LLC

4.83(
20
)
•Approved Pro

Blackburn Foundation Repair, LLC

4.83(
20
)
•Approved Pro
Customers say: Quality work
98 local quotes requested
33 years of experience

Blackburn Basement Systems has been providing the best in basement waterproofing, crawl space and foundation repair, concrete leveling, and radon mitigation in South Dakota, and Eastern Wy, since 1992. We offer a variety of solutions for the multitude of issues that result from below grade construction throughout South Dakota. Thousands of homes, businesses and government agencies have been serviced by our trained professional installers throughout South Dakota, and Eastern Wy. We are proud to say we have 500 reviews with 4.8 stars!

"Good job"

Dominik C on September 2024

Blackburn Basement Systems has been providing the best in basement waterproofing, crawl space and foundation repair, concrete leveling, and radon mitigation in South Dakota, and Eastern Wy, since 1992. We offer a variety of solutions for the multitude of issues that result from below grade construction throughout South Dakota. Thousands of homes, businesses and government agencies have been serviced by our trained professional installers throughout South Dakota, and Eastern Wy. We are proud to say we have 500 reviews with 4.8 stars!

"Good job"

Dominik C on September 2024

Avatar for Pillar To Post

Pillar To Post

No reviews yet

Pillar To Post

No reviews yet
3 years of experience

Top nationwide franchise owned and operated by Andrew Webster. We cover home inspections and have 3 packages to choose from for service and cost. We also can test for Radon, Water Quality, Mold and meth use in the home. Our goal is 100% customer satisfaction, and we also have 1 million dollars in error and omissions by the contractor, client and agent. Since opening in December 2022, we have had nothing but 5-star reviews internally and on google.

Top nationwide franchise owned and operated by Andrew Webster. We cover home inspections and have 3 packages to choose from for service and cost. We also can test for Radon, Water Quality, Mold and meth use in the home. Our goal is 100% customer satisfaction, and we also have 1 million dollars in error and omissions by the contractor, client and agent. Since opening in December 2022, we have had nothing but 5-star reviews internally and on google.

Breen & Associates, LLC

4.62(
13
)

Breen & Associates, LLC

4.62(
13
)
Customers say: Quick response
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers

Breen & Associates is a Professional Home Inspection Service Company. Including, but not limited to, Radon Testing, Water Tests, Infrared Thermal Imaging, Pest Inspection and all things involving a Full Service General Home Inspection. Over 85 years of family experience in the home inspection business. Over 13 years experience in residential home construction.

Breen & Associates is a Professional Home Inspection Service Company. Including, but not limited to, Radon Testing, Water Tests, Infrared Thermal Imaging, Pest Inspection and all things involving a Full Service General Home Inspection. Over 85 years of family experience in the home inspection business. Over 13 years experience in residential home construction.

Avatar for Environmental Testing & Research Laboratories, Inc

Environmental Testing & Research Laboratories, Inc

4.85(
347
)

Environmental Testing & Research Laboratories, Inc

4.85(
347
)
Customers say: True professional
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers

ETR Laboratories in an analytic laboratory with a broad range of commercial, industrial and individual clients. We provide analytic services using a wide variety of scientific methods including GC/MS, IC/MS, GIR, NMR and SEM equipment. We can do particle analysis, organic and inorganic chemical analysis and micro analysis on biological and other materials. Private water analysis is our specialty. Award winning. Additional DBA - Environmental Testing & Research Laboratories Inc, ETR Labs, ETR Laboratories.

"as advertised"

Nancy C on July 2018

ETR Laboratories in an analytic laboratory with a broad range of commercial, industrial and individual clients. We provide analytic services using a wide variety of scientific methods including GC/MS, IC/MS, GIR, NMR and SEM equipment. We can do particle analysis, organic and inorganic chemical analysis and micro analysis on biological and other materials. Private water analysis is our specialty. Award winning. Additional DBA - Environmental Testing & Research Laboratories Inc, ETR Labs, ETR Laboratories.

"as advertised"

Nancy C on July 2018

Radon Detection and Reduction questions, answered by experts

In most states, radon testing companies don’t need to be licensed or certified by the state, but the companies that analyze the test results and develop radon mitigation protocols do. You should choose a radon testing company that suits your needs, but before hiring a mitigation specialist, check our state licensing tool to make sure the company is properly certified.

What is radon? It’s a radioactive gas that naturally occurs in the ground, forming as uranium and thorium decay. It has no color or odor, so you don’t know if it’s seeping into your building’s foundation. Regular exposure to radon gas increases your chances of suffering from lung cancer. Radon testing measures the air inside your house for the presence of radon gas. If detected, the test will measure the severity of radon levels in your home’s air.

There are steps you can take as a homeowner to remediate radon yourself. While a radon reduction professional can make the biggest impact in your home, you can make efforts to improve radon levels on your own by sealing cracks, increasing ventilation, and testing for radon regularly.

Using an air purifier in your home or basement isn't an effective way to reduce or mitigate radon. Radon is an inert gas, meaning it doesn't react with other chemicals and can't be filtered the way particulates can be. While an air purifier can help improve your indoor air quality in other ways, don't rely on it to reduce radon.

To determine whether you have radon in your home, you must run a test. Radon gas has no odor or color, so you won’t notice a concentration of radon. You could purchase a DIY test at a local hardware store, but it may not deliver completely trustworthy results. The best way to test and receive accurate results is to hire a local radon detection specialist.

The New Underwood, SD homeowners’ guide to radon detection and reduction services

From average costs to expert advice, get all the answers you need to get your job done.

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