Top-rated radon detection and reduction specialists.

Get matched with top radon detection and reduction specialists in Hollister, CA

Enter your zip and get matched with up to 5 pros

Need a pro for your radon detection and reduction project in Hollister, CA?

Select your specific project to find the pro for you.

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

*The Angi rating for Radon Detection And Reduction companies in Hollister, 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 Hollister, 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 December 31, 2025

Find Radon detection and reduction specialists in Hollister

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 IA Services of Coalinga

IA Services of Coalinga

No reviews yet

IA Services of Coalinga

No reviews yet
Free onsite estimate

IA Services of Coalinga is the top provider of environmental services in the area. Our professional testing and restoration services are our main focus, and we have been extending low prices and high quality service for nearly 20 years. Performing inspections for mold, asbestos, lead, and other hazardous environmental factors is the best way to ensure that your property as well as your family, employees, or tenants are not at risk for potential harm from such factors. There is no building too large or small for our certified inspection team, so give us a call at IA Services headquarters during business hours, or visit our website and submit a contact form to be contacted the next business day. Our knowledgeable customer services representatives will answer your questions and book an inspection that fits in your schedule.

IA Services of Coalinga is the top provider of environmental services in the area. Our professional testing and restoration services are our main focus, and we have been extending low prices and high quality service for nearly 20 years. Performing inspections for mold, asbestos, lead, and other hazardous environmental factors is the best way to ensure that your property as well as your family, employees, or tenants are not at risk for potential harm from such factors. There is no building too large or small for our certified inspection team, so give us a call at IA Services headquarters during business hours, or visit our website and submit a contact form to be contacted the next business day. Our knowledgeable customer services representatives will answer your questions and book an inspection that fits in your schedule.

Radon Detection and Reduction questions, answered by experts

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

Through air sampling devices and surface swabs in key areas of concern.

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

A DIY kit can lessen the sting that comes with paying for a professional assessment, but these comprehensive tests are true lifesavers. Inspectors are more likely to catch all of the pollutants and hazards in your air. Plus, you’ll still need a professional to verify and act on your DIY test results. 

Some kits don’t include tests for certain air pollutants or only detect their presence, but not their levels (i.e., mold spores). If you’re willing to shell out money for a DIY kit, it’s usually better to stretch your budget slightly higher for a more detailed assessment.

To determine whether you have radon in your home, you must run a test. Radon gas has no odor or color, so you won’t notice a concentration of radon. You could purchase a DIY test at a local hardware store, but it may not deliver completely trustworthy results. The best way to test and receive accurate results is to hire a local radon detection specialist.

The Hollister, 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.

See all articles

What do you need done? We’ll find top pros.
  • 🌱 "Mow a small front yard"
  • 🛠 "Fix a leaking pipe under the sink"
  • 🏠 "Repair shingles on an asphalt roof"