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Verified Reviews for Radon Detection And Reduction pros in Marietta, OK

*The Angi rating for Radon Detection And Reduction companies in Marietta, OK 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 Marietta, OK 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 10, 2025

Find Radon detection and reduction specialists in Marietta

Cox Environmental

5.00(
4
)

Cox Environmental

5.00(
4
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Air Quality, Mold, Radon, and Methamphetamine Residue Inspections and Testing. YOU CAN BE ABSOLUTELY CERTAIN WE HAVE NO CONFLICT OF INTEREST and have nothing to gain from the testing results. We do not perform any remediation, mitigation, or cleaning services Testing for residential homes, multi-family units, retail centers, office buildings, commercial properties, schools, and hospitals. We have performed over 3,000 inspections in 5 years, with exceptional reviews. Cox Environmental is committed to providing all our customers with timely, courteous and thorough professional inspections, along with detailed comprehensive air quality inspection reports within 2 business days. MICRO Certified. MLCC Certified. Our mission is to treat each customer with the same attention to detail and concern that we would want ourselves. Customer service, kindness, and honesty are paramount.

Air Quality, Mold, Radon, and Methamphetamine Residue Inspections and Testing. YOU CAN BE ABSOLUTELY CERTAIN WE HAVE NO CONFLICT OF INTEREST and have nothing to gain from the testing results. We do not perform any remediation, mitigation, or cleaning services Testing for residential homes, multi-family units, retail centers, office buildings, commercial properties, schools, and hospitals. We have performed over 3,000 inspections in 5 years, with exceptional reviews. Cox Environmental is committed to providing all our customers with timely, courteous and thorough professional inspections, along with detailed comprehensive air quality inspection reports within 2 business days. MICRO Certified. MLCC Certified. Our mission is to treat each customer with the same attention to detail and concern that we would want ourselves. Customer service, kindness, and honesty are paramount.

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

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.

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.

The soil beneath your house is most likely what’s causing an increased level of radon. This is because soil holds radioactivity for a long time and it’s also what most buildings are built on. Another common source of radon is water from a source that hasn’t been through periodic radon tests, such as well water. Over time, the radon from the soil can inhabit other parts of your house like the foundation or plumbing.

Radon is a colorless, odorless gas that can cause lung cancer; testing ensures safe indoor air quality.

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

The Marietta, OK 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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