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Find Radon gas testers in Los Angeles

Avatar for Radon Solutions California, LLC
Radon Solutions California, LLC
4.4(
8
)

Serving Los Angeles, CA and surrounding areas

Approved

In business since 2021

Free estimates

Credit card accepted

"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."
Radon Fans
Response time2 days
Recommended by100%of homeowners
Avatar for Restoration Hunter
Restoration Hunter
5.0(
2
)

Serving Los Angeles, CA and surrounding areas

Approved

In business since 2022

Free estimates

Warranties offered

"After the traumatic and heartbreaking experience of the Palisades fires, we had to go ahead and hire a remediation company. We just finished our remediation with Brett from Hunter Restoration and our apartment smells and looks great! Brett and Braulio did a wonderful job! Not only did they do an amazing job with our unit and were very hardworking and dedicated to making our place look amazing… They were also very compassionate, understanding, patient and worked with us and our situation to be able to make this happen for us as smoothly as possible. I met with almost 8 remediation companies… I’m happy I went with them… I will definitely go back to them for any future jobs I have. I cannot recommend them enough! They did a fantastic job! Thanks Hunter Restoration!"
4 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for AM:PM Restorations & Construction Inc.
AM:PM Restorations & Construction Inc.
5.0(
16
)

Serving Los Angeles, CA and surrounding areas

In business since 2007

Free estimates

Emergency services offered

"David, Veronica and Maria we're pleasant to work with, Upfront and direct with all Communication. They also recommended a Clearance Testing Facility which was great, they made the Clearance appointment for me and the company called to schedule. David and his team where very profession, I've dealt with quite a few contractors and project managers and they did a fantastic job. David gave me his word that it will pass, and it did due to his expertise, knowledge and his Team. I thought his pricing was extremely fair as I have dealt with this problem in another area in the household due to lack of engineering integrity, I would definitely recommend AM:PM Restorations & Construction Inc. to friends and family. Don't hesitate to call and have them give you a quote."
Mold remediation in kitchen cabinets
Mold remediation
Black mold on the wood structure
Mold remediation in kitchen cabinets
Mold remediation

+29

Response time1 day
Response rate87%
Recommended by100%of homeowners
Avatar for Roof Rx
Roof Rx
4.2(
1,190
)

Serving Los Angeles, CA and surrounding areas

In business since 1998

Free estimates

Emergency services offered

"not that great. basically paid $99 to get an estimate. included cleaning roof and minimal repairs. took a while to get appointment, and then when they came, they didn't even do the work! gave a really big estimate and then re-seheduled to have someone else do the work. they wouldn't totally replace the roof, gave different estimates to repair, I went with a different company to do a full roof rplacement."
Additional Photos
Roof Leak Repair - Step 1
Roof Leak Repair - Step 2
Roof Leak Repair
Recommended by81%of homeowners
Avatar for DNZ Home Inspections
DNZ Home Inspections
5.0(
2
)

Serving Los Angeles, CA and surrounding areas

In business since 1999

Free estimates

Emergency services offered

Established in 1999.\nDNZ Home Inspections is a service oriented, multi-inspector firm with over 1,000 inspections performed throughout greater Los Angeles area. Owner Nikolay is also a Licensed Contractor who knows how to evaluate a home and provide solutions. We conduct home and commercial property inspections, mold testing, infrared scanning and comprehensive energy audits as well as water testing. DNZ Home Inspections services conducts inspections throughout Southern California. We have appointments available Monday through Saturday and sometimes can accommodate Sunday appointments, when possible. We also have an online scheduling calendar for your convenience. We can help you make the right choice on your next home.

Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+14

Recommended by100%of homeowners
Avatar for Simplistic Water Restoration
Simplistic Water Restoration
5.0(
5
)

Serving Los Angeles, CA and surrounding areas

Free estimates

Emergency services offered

Credit card accepted

"They were very responsive, very quiet, very clean. They protected the house with sheeting and they took care of the paper works and testing and they make sure that it was tested and everything was up to code. They also help me to find out people to rebuild the kitchen."
Mold remediation
Mold inspection & remediation
Mold remediation
Mold remediation
Mold remediation

+39

Recommended by100%of homeowners
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FAQs for radon gas testing projects in Los Angeles, 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 Los Angeles, CA homeowners’ guide to radon gas testings

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