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Verified Reviews for Radon Detection And Reduction pros in Mcfarland, CA

*The Angi rating for Radon Detection And Reduction companies in Mcfarland, CA 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 Mcfarland, CA 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 15, 2025

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Avatar for Indoor-Environmental Services of Shafter

Indoor-Environmental Services of Shafter

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Indoor-Environmental Services of Shafter

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Indoor-Environmental Services of Shafter is the premier provider of environmental services in Central California. Our main focuses are mold inspection, testing, and remediation, as well as the testing and abatement of other hazardous substances that may be existing in your home or office building. Indoor-Environmental Services offers the best prices available, and are the only company in the industry that provides a 10-year warranty upon the completion of any mold remediation project. Mold inspections can prove to be beneficial whether there is visible mold growth or if a test is performed prior to purchasing a home. Indoor fungal contaminants have proven to be capable of affecting the structural integrity of your property as well as the respiratory health of your family or employees. If you have questions regarding mold and its affect on your health, go to our website and click on the "Mold and Your Health" section.

Indoor-Environmental Services of Shafter is the premier provider of environmental services in Central California. Our main focuses are mold inspection, testing, and remediation, as well as the testing and abatement of other hazardous substances that may be existing in your home or office building. Indoor-Environmental Services offers the best prices available, and are the only company in the industry that provides a 10-year warranty upon the completion of any mold remediation project. Mold inspections can prove to be beneficial whether there is visible mold growth or if a test is performed prior to purchasing a home. Indoor fungal contaminants have proven to be capable of affecting the structural integrity of your property as well as the respiratory health of your family or employees. If you have questions regarding mold and its affect on your health, go to our website and click on the "Mold and Your Health" section.

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

The only way to determine if you have a radon problem in your home is to have professional testing done. You can buy DIY radon test kits, but these are sometimes inaccurate in certain temperatures and humidity levels, and they don’t paint the entire picture in terms of your radon exposure. Scheduling testing once every two to five years is best. You can also look out for the following symptoms, which, according to the American Cancer Society, are symptoms of radon exposure:

  • Shortness of breath

  • Cough

  • Tightness in the chest

  • Difficulty swallowing

  • Hoarseness

You'll need to test your home for radon after installing the mitigation system, then again every two years. If radon remains elevated, contact a licensed radon professional, either the contractor who installed the system or a different one, and have them evaluate the system. They may need to make some changes to improve its effectiveness and performance.

Costs depend on test type, home size, number of testing locations, and whether follow-up testing is required.

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

Your radon fan needs to operate 24/7 to be effective. The only time the fan isn't operating is during its replacement. Radon levels in the home can increase within hours if the fan stops working or something obstructs the stack vent. Fortunately, radon systems require no downtime maintenance between fan changes.

The Mcfarland, CA 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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