Top-rated radon gas testers.

Get matched with top radon gas testers in Somis, CA

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

Find Radon gas testers in Somis

Avatar for Radon Solutions California, LLC

Radon Solutions California, LLC

4.88(
4
)
•Approved Pro

Radon Solutions California, LLC

4.88(
4
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
5 years of experience

Welcome to Radon Solutions California, LLC. We take pride in the quality of work and customer satisfaction that we give each and every customer! We are known to pay exquisite attention to detail while making customer satisfaction our top priority. Call us today to learn more about how we can help you!

"Absolutely amazing experience. My home radon levels were averaging 5.0 pCi/L. Two days after Edward and his team finished the mitigation job the levels went down to 0.3. Incredible result. I can’t be happier."

Francisco D on December 2018

Welcome to Radon Solutions California, LLC. We take pride in the quality of work and customer satisfaction that we give each and every customer! We are known to pay exquisite attention to detail while making customer satisfaction our top priority. Call us today to learn more about how we can help you!

"Absolutely amazing experience. My home radon levels were averaging 5.0 pCi/L. Two days after Edward and his team finished the mitigation job the levels went down to 0.3. Incredible result. I can’t be happier."

Francisco D on December 2018

Avatar for James Clifton General Contractor

James Clifton General Contractor

4.81(
26
)
•Approved Pro

James Clifton General Contractor

4.81(
26
)
•Approved Pro
Customers say: True professional
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
21 years of experience

We are a Restoration and Home Repair Company. We specialize in FIRE/WATER damage, DRAINAGE/French Drains, crawlspace drainage and clean out, sump pumps, attic and crawlspace insulation and Home Repairs 1. ATTIC/CRAWLSPACE INSULATION 2. HOME REPAIRS 3. RETROFITTING - EARTHQUAKE SAFETY 4. DRAINAGE/FRENCH DRAINS 5. CRAWLSPACE SYSTEMS 6. DOORS & WINDOWS 7. FUNGUS & TERMITE REPAIRS

"Extremely well. They turned up on time, they were efficient and communicated extremely well. Best contractors that we've used."

Alan C on December 2024

We are a Restoration and Home Repair Company. We specialize in FIRE/WATER damage, DRAINAGE/French Drains, crawlspace drainage and clean out, sump pumps, attic and crawlspace insulation and Home Repairs 1. ATTIC/CRAWLSPACE INSULATION 2. HOME REPAIRS 3. RETROFITTING - EARTHQUAKE SAFETY 4. DRAINAGE/FRENCH DRAINS 5. CRAWLSPACE SYSTEMS 6. DOORS & WINDOWS 7. FUNGUS & TERMITE REPAIRS

"Extremely well. They turned up on time, they were efficient and communicated extremely well. Best contractors that we've used."

Alan C on December 2024

Avatar for All Clear Environmental Inc

All Clear Environmental Inc

4.79(
173
)
•Approved Pro

All Clear Environmental Inc

4.79(
173
)
•Approved Pro
Customers say: Quality work
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
23 years of experience

All Clear Environmental is Southern California's one-stop solution for asbestos removal, lead abatement and mold remediation. Our team of licensed professionals has over 100 years of combined experience in the thorough, discrete and environmentally responsible removal of hazardous materials. If you think that your property may be at risk for containing asbestos, lead or mold, we can provide you with the most cost-effective solution. And you can be sure that when we're finished, it will be All Clear.

"Abatement and Remediation are not for the weak or weary - whether managing a personal or professional project, proper containment practices and efforts are essential. I will forever recommend and promote All Clear Environmental - a family-run business with hands-on customer relations. Larry Enos and his son, Beckett, put forth great effort to communicate, assess, and manage the process in good faith. All Clear's team of Rigo et al, handled the physical abatement and remediation, in our home. Rigo and his team made us feel 100% safe, confident, and secure throughout each stage - which was no easy feat with children and pets, in a home. And while there are no accolades for being second-round mold recipients, we hit the jackpot in working with All Clear. We have worked with other companies only to be left with poor communication, a tendency to be overcharged, and dishonesty. Beckett was available almost 24/7 to answer questions via text and live calls. When I felt doubt, Beckett made time to discuss alternative avenues and ensure our best interests were at the forefront of every decision. I recommend All Clear Environmental to friends, neighbors, and strangers with 6/5 stars. Your house is your home - and mold is personal. A company that recognizes the need to love your home well, is a gem beyond measure. Thank you, All Clear Environmental - good people attract good people! Gratefully, Jackie"

Jackie D on August 2024

All Clear Environmental is Southern California's one-stop solution for asbestos removal, lead abatement and mold remediation. Our team of licensed professionals has over 100 years of combined experience in the thorough, discrete and environmentally responsible removal of hazardous materials. If you think that your property may be at risk for containing asbestos, lead or mold, we can provide you with the most cost-effective solution. And you can be sure that when we're finished, it will be All Clear.

"Abatement and Remediation are not for the weak or weary - whether managing a personal or professional project, proper containment practices and efforts are essential. I will forever recommend and promote All Clear Environmental - a family-run business with hands-on customer relations. Larry Enos and his son, Beckett, put forth great effort to communicate, assess, and manage the process in good faith. All Clear's team of Rigo et al, handled the physical abatement and remediation, in our home. Rigo and his team made us feel 100% safe, confident, and secure throughout each stage - which was no easy feat with children and pets, in a home. And while there are no accolades for being second-round mold recipients, we hit the jackpot in working with All Clear. We have worked with other companies only to be left with poor communication, a tendency to be overcharged, and dishonesty. Beckett was available almost 24/7 to answer questions via text and live calls. When I felt doubt, Beckett made time to discuss alternative avenues and ensure our best interests were at the forefront of every decision. I recommend All Clear Environmental to friends, neighbors, and strangers with 6/5 stars. Your house is your home - and mold is personal. A company that recognizes the need to love your home well, is a gem beyond measure. Thank you, All Clear Environmental - good people attract good people! Gratefully, Jackie"

Jackie D on August 2024

Avatar for Homfix Inc.

Homfix Inc.

5.00(
2
)

Homfix Inc.

5.00(
2
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

We are a Home Improvement and design Company that provides all type of home services from A to Z, Kitchen Remodel, Bathroom Remodel, Additions, Roof, Solar Panels, and ect..

We are a Home Improvement and design Company that provides all type of home services from A to Z, Kitchen Remodel, Bathroom Remodel, Additions, Roof, Solar Panels, and ect..

Sunrise Inspections

No reviews yet

Sunrise Inspections

No reviews yet
24 years of experience

Sunrise Inspections is a locally owned and operated company, specializing in home, multi-unit and commercial buildings. Over 25 years experience in construction, renovation and remodeling in Southern California. 20 years service with Los Angeles City Schools in operations and maintenance. ITA trained (inspection training associates) ITA is nationally recognized by ASHI, We are Certified ASHI inspector (American Society of home Inspectors) We are certified CREIA (California Real Estate Inspection Association)CREIA requires obtaining initial training, passing a rigorous exam, and mandatory adherence to professional standards of practice and participation in continuing education. Certified residential Mold Inspector. The average inspection takes approximately two to three hours, depending on the size, condition and age of the property. Sunrise Inspections will provide you with a comprehensive report, detailing the findings of the inspection, complete with photos for easy reference. The cost of a home inspection starts at 350.00 depending on the size, condition and age of the property. Mold testing is 250.00 and 75.00 per sample that is sent to the lab. All inspections are paid for at the time of the inspection by cash or check. 10% discount to seniors, military, police, fire

Sunrise Inspections is a locally owned and operated company, specializing in home, multi-unit and commercial buildings. Over 25 years experience in construction, renovation and remodeling in Southern California. 20 years service with Los Angeles City Schools in operations and maintenance. ITA trained (inspection training associates) ITA is nationally recognized by ASHI, We are Certified ASHI inspector (American Society of home Inspectors) We are certified CREIA (California Real Estate Inspection Association)CREIA requires obtaining initial training, passing a rigorous exam, and mandatory adherence to professional standards of practice and participation in continuing education. Certified residential Mold Inspector. The average inspection takes approximately two to three hours, depending on the size, condition and age of the property. Sunrise Inspections will provide you with a comprehensive report, detailing the findings of the inspection, complete with photos for easy reference. The cost of a home inspection starts at 350.00 depending on the size, condition and age of the property. Mold testing is 250.00 and 75.00 per sample that is sent to the lab. All inspections are paid for at the time of the inspection by cash or check. 10% discount to seniors, military, police, fire

Haz Waste Company

No reviews yet

Haz Waste Company

No reviews yet
Free onsite estimate

This is a serious task that needs highly sophisticated methodology for rendering this task, and not all the service providers in the city have this agile knowledge. Among the few best ones, Haz Waste Company is the one you would find the most effective.

This is a serious task that needs highly sophisticated methodology for rendering this task, and not all the service providers in the city have this agile knowledge. Among the few best ones, Haz Waste Company is the one you would find the most effective.

Avatar for SERVPRO of Fountain Valley

SERVPRO of Fountain Valley

No reviews yet

SERVPRO of Fountain Valley

No reviews yet
19 years of experience

SERVPRO of Fountain Valley offers 24-Hour Emergency Service with highly trained technicians specialized in the cleanup and restoration of residential and commercial property after a fire, smoke or water damage. We can also mitigate mold and mildew from your home or business. Additionally, we work with your insurance. For a stress free claims process, SERVPRO can help manage the insurance paperwork and process. Our goal is to help minimize the interruption to your life and quickly make it "Like it never even happened." We have the following certifications: HST - Health and safety Technician, AMRT - Applied Microbial Remediation Technician, ASD - Applied Structural Drying Technician, CDS - Commercial Drying Specialist, WRT - Water Damage Restoration Technician, SRT - Fire & Smoke Damage Restoration Technician, and CCT - Carpet Cleaning Technician.

SERVPRO of Fountain Valley offers 24-Hour Emergency Service with highly trained technicians specialized in the cleanup and restoration of residential and commercial property after a fire, smoke or water damage. We can also mitigate mold and mildew from your home or business. Additionally, we work with your insurance. For a stress free claims process, SERVPRO can help manage the insurance paperwork and process. Our goal is to help minimize the interruption to your life and quickly make it "Like it never even happened." We have the following certifications: HST - Health and safety Technician, AMRT - Applied Microbial Remediation Technician, ASD - Applied Structural Drying Technician, CDS - Commercial Drying Specialist, WRT - Water Damage Restoration Technician, SRT - Fire & Smoke Damage Restoration Technician, and CCT - Carpet Cleaning Technician.

Team Ridamite

5.00(
3
)

Team Ridamite

5.00(
3
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

additional email: april@teamridamite.com

additional email: april@teamridamite.com

Avatar for Los Angeles Mold Services

Los Angeles Mold Services

No reviews yet

Los Angeles Mold Services

No reviews yet
34 years of experience

Los Angeles Mold Services specializes in a range of environmental program and building restoration services as related to water damage as a licensed business experienced since 1992 operating from locations throughout Southern California under the approval of the IEA and EPA.

Los Angeles Mold Services specializes in a range of environmental program and building restoration services as related to water damage as a licensed business experienced since 1992 operating from locations throughout Southern California under the approval of the IEA and EPA.

Koonce Consulting & Testing

1.00(
1
)

Koonce Consulting & Testing

1.00(
1
)
39 years of experience

Licensed, certified and accredited Indoor Einvironmental and Hazardous Substance Consultant

Licensed, certified and accredited Indoor Einvironmental and Hazardous Substance Consultant

...
Showing 1-10 of 847
FAQs for radon gas testing projects in Somis, CA

Radon is the second leading cause of lung cancer in the U.S. The gas seeps through cracks in foundations and collects in basements and other low areas. Once you breathe it in, radioactive particles lodge in lung tissue and do long-term damage. Because you can’t see or smell radon, the EPA recommends testing your home every two years—and after major renovations—to keep your family safe.

Yes—every home should be tested. The EPA advises doing it at least every two years and any time you remodel, buy, or sell. On average, one in 15 houses nationwide sits above the recommended limit, and the only way to know where yours stands is a formal test. The equipment simply measures gas levels and won’t change your indoor environment, so the process is completely harmless.

Certified radon professionals—often home inspectors or dedicated radon mitigation contractors—handle testing. These radon testing professionals follow EPA protocols and use calibrated instruments to check levels throughout your house. Hiring a certified radon specialist means results you can trust for real estate deals, insurance requirements, and, most importantly, your family’s health.

Inspectors specialize in measuring radon gas levels, while licensed mitigation contractors design and install the systems that remove it. If your test comes back high, your inspector can point you to a qualified mitigation pro who will size and install the right fan, piping, or other equipment to bring levels down.

No—standard home air purifiers don’t touch radon. They’re built to trap dust and pollen, not radioactive gas. If testing shows high levels, you’ll need a dedicated mitigation system that vents the gas from beneath your home to the outdoors. Relying on a room purifier alone won’t keep your indoor air safe.

Opening a few windows in your home might dilute radon for a short time, but the gas seeps back in as soon as they’re closed. For a lasting fix, you’ll need a professional mitigation system—often a sub-slab depressurization fan—that pulls radon from beneath the foundation and safely vents it outside.

The Somis, CA homeowners’ guide to radon gas testings

From average costs to expert advice, get all the answers you need to get your job done.

See all articles