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Verified Reviews for Radon Detection And Reduction pros in Medina, TX

*The Angi rating for Radon Detection And Reduction companies in Medina, TX 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 Medina, TX 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 January 02, 2026

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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

Avatar for Barclay Assessment Services

Barclay Assessment Services

No reviews yet

Barclay Assessment Services

No reviews yet
24 years of experience

Barclay Assessment Services is a provider of certified industrial hygiene and licensed mold inspection and testing services. In addition to mold inspections and testing, we can expertly and cost-effectively guide you through the regulatory-driven mold remediation and hazard abatement process.

Barclay Assessment Services is a provider of certified industrial hygiene and licensed mold inspection and testing services. In addition to mold inspections and testing, we can expertly and cost-effectively guide you through the regulatory-driven mold remediation and hazard abatement process.

Radon Detection and Reduction questions, answered by experts

Radon enters your home when warm air begins to rise and exits through the roof, creating a vacuum that pulls cooler air from under the foundation. Part of that air is radon, which is an invisible, odorless gas that develops naturally when radioactive particles are deep within the ground. Those particles usually come from decaying matter in soil and rocks.

Mold, VOCs, radon, carbon monoxide, and particulate matter are typically measured.

Sampling typically takes 1-3 hours, and depending on the provider, lab results are available within 2-7 days.

The short answer is no, air purifiers do not help with radon. While they certainly can improve the air quality of your home, they only clean pollutants from the air. Radon is radioactive, and it isn’t affected by the same filtration systems that handle other airborne particles, like dust and mold. The only thing that works is a radon mitigation system.

Professional radon detection involves placing test kits in the lowest lived-in level of the house for a period, usually 48 hours to several months, followed by lab analysis of collected data.

The Medina, TX homeowners’ guide to radon detection and reduction services

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