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Verified Reviews for Radon Detection And Reduction pros in Dos Palos, CA

*The Angi rating for Radon Detection And Reduction companies in Dos Palos, 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 Dos Palos, 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 January 17, 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 Standish Inspections

Standish Inspections

5.00(
7
)

Standish Inspections

5.00(
7
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Home, Commercial, Mold, Radon, Lead and Asbestos inspections. Travel may charges apply.

Home, Commercial, Mold, Radon, Lead and Asbestos inspections. Travel may charges apply.

Avatar for PuroClean of Fresno

PuroClean of Fresno

No reviews yet

PuroClean of Fresno

No reviews yet
3 years of experience

PuroClean of Fresno is a water, fire,, and mold damage property restoration company in Fresno, with certified technicians and advanced equipment, providing the highest level of service in the industry. We are an IICRC and EPA Lead-Safe Certified, veteran-owned business that serves quickly, professionally, ethically, and with compassion.

PuroClean of Fresno is a water, fire,, and mold damage property restoration company in Fresno, with certified technicians and advanced equipment, providing the highest level of service in the industry. We are an IICRC and EPA Lead-Safe Certified, veteran-owned business that serves quickly, professionally, ethically, and with compassion.

Radon Detection and Reduction questions, answered by experts

You should have a professional test for radon every two to five years. A good rule of thumb is to get testing done every five years if you’ve never had an issue before and every two years if you have. You may also want to schedule testing if you notice symptoms of radon exposure or if you do intermittent DIY radon testing and notice changes in your levels between tests. If you have an active radon monitor, you can schedule testing if you notice levels increasing over time.

Properties should ideally be tested for radon every 2 to 5 years or sooner when changes to the property structure or ventilation occur that might impact airflow.

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

DIY kits are available for basic testing. Professional services provide comprehensive results and recommendations.

Avoid opening windows and keep doors closed during testing to obtain accurate readings.

The Dos Palos, 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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