Top-rated radon detection and reduction specialists.

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

Enter your zip and get matched with up to 5 pros

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

Select your specific project to find the pro for you.

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

*The Angi rating for Radon Detection And Reduction companies in Colusa, 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 Colusa, 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 12, 2025

Find Radon detection and reduction specialists in Colusa

AAA HERS RATERS

No reviews yet

AAA HERS RATERS

No reviews yet

AAA HERS RATER is going to prove to be the #1 company you'll ever need for your Residential HERS testing and verification requirements for Alterations, existing home and new construction in California. With over 30 years as a home builder and inspector you can be assured that every bit of your report is done accurately and completed with quality testing and observation. Complete testing services are available and include whole house Blower Door pressurization and depressurization testing, Duct testing, Infrared Camera inspection, and any testing process that are required on your CF-1R inspections requested by mortgage and banking entities or just for your own personal curiosity, understanding or personal confidence that your home is safe and healty and your indoor air quality is the best that you can have for your health and family well being.

AAA HERS RATER is going to prove to be the #1 company you'll ever need for your Residential HERS testing and verification requirements for Alterations, existing home and new construction in California. With over 30 years as a home builder and inspector you can be assured that every bit of your report is done accurately and completed with quality testing and observation. Complete testing services are available and include whole house Blower Door pressurization and depressurization testing, Duct testing, Infrared Camera inspection, and any testing process that are required on your CF-1R inspections requested by mortgage and banking entities or just for your own personal curiosity, understanding or personal confidence that your home is safe and healty and your indoor air quality is the best that you can have for your health and family well being.

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

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

Costs for radon detection services typically range from $150 to $250, depending on the testing method and whether a professional assessment is required.

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.

Use a radon test kit or hire professionals to conduct a detailed assessment of radon levels in your home.

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.

The Colusa, 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"