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Verified Reviews for Radon Detection And Reduction pros in Swansea, SC

*The Angi rating for Radon Detection And Reduction companies in Swansea, SC 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 Swansea, SC 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 December 05, 2025

Find Radon detection and reduction specialists in Swansea

Avatar for Biotek Environmental, Inc.

Biotek Environmental, Inc.

4.75(
140
)
•Approved Pro

Biotek Environmental, Inc.

4.75(
140
)
•Approved Pro
Customers say: Quick response
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
437 local quotes requested

Need expert water damage restoration, fire damage restoration, and mold remediation? BioTek Environmental Inc. is based in Columbia SC and serves South Carolina, North Carolina, and Georgia. We are rated A+ by BBB, and we are proud of having served more than 2000 satisfied clients since 2007. Get 24/7 emergency help to ensure that your property damage needs are dealt with efficiently and carefully. We have seen it all, let us help you restore your home. For your peace of mind, we offer the best price guarantee and a 30-year bumper-to-bumper warranty! BioTek is a top 5% remediation/restoration contractor nationwide and we will be there for you when you need us.

"Smooth! And efficient. Communication was touchy sometimes but otherwise good."

Aaron D on May 2025

Need expert water damage restoration, fire damage restoration, and mold remediation? BioTek Environmental Inc. is based in Columbia SC and serves South Carolina, North Carolina, and Georgia. We are rated A+ by BBB, and we are proud of having served more than 2000 satisfied clients since 2007. Get 24/7 emergency help to ensure that your property damage needs are dealt with efficiently and carefully. We have seen it all, let us help you restore your home. For your peace of mind, we offer the best price guarantee and a 30-year bumper-to-bumper warranty! BioTek is a top 5% remediation/restoration contractor nationwide and we will be there for you when you need us.

"Smooth! And efficient. Communication was touchy sometimes but otherwise good."

Aaron D on May 2025

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

Costs depend on property size, test types, and additional services like mold sampling.

The natural breakdown of uranium in soil, rock, and water can cause radon to appear in a home. The gas seeps into homes through cracks in foundations, walls, or floors, as well as through gaps around pipes or construction joints. Radon levels are influenced by soil composition, building materials, and ventilation. Poorly sealed or airtight homes can trap radon, allowing it to accumulate.

You can buy DIY radon test kits from a home improvement store and conduct radon testing, but these tests are often inaccurate. No matter the result, you should supplement DIY testing with professional radon detection and analysis. DIYers only have access to passive radon tests, which aren’t as reliable as active tests that professionals use. Plus, it’s very easy for DIYers to make mistakes during testing, leading to inaccurate results. If you’re moving into a new home, have concerns about radon, or are due for an updated test, hire a professional. 

Testing typically costs between $150 and $500, depending on the method used and the number of areas tested.

DIY radon detection is possible using over-the-counter test kits, but professional testing can provide more accurate assessments, especially in cases of high initial readings.

The Swansea, SC 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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