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*The Angi rating for Radon Detection And Reduction companies in El Cajon, 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 El Cajon, 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 08, 2025

Find Radon detection and reduction specialists in El Cajon

Pacific Environmental & Abatement Solutions Inc
4.6(
10
)
Radon Gas - AbatementRadon Gas - Testing

Serving El Cajon, CA and surrounding areas

Approved

In business since 2006

Free estimates

Emergency services offered

"The tester was well versed in this area even showing the areas that were high in moisture. Very friendly and informative as well as professional. Made me comfortable with the experience she had. When the owner and maintenance worker failed she made me comfortable. Fae who had the credentials as well experience explained everything in detail. Definitely use Fae!!!"
1 neighbors recently requested a quote
Recommended by87%of homeowners
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Avatar for San Diego Abatement Services
San Diego Abatement Services
4.5(
41
)
Radon Gas - AbatementRadon Gas - Testing

Serving El Cajon, CA and surrounding areas

Approved

In business since 1985

Emergency services offered

Warranties offered

"Professional, prompt, courteous, completed in one day. Responsive to emails and all questions. Left no mess."
Exterior Painting
Before - Acoustic Ceiling
After - Scraped & Textured
Asbestos Removal
Lead Removal Services

+2

Response time2 days
Response rate100%
2 neighbors recently requested a quote
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Avatar for KCS Restorations Inc
KCS Restorations Inc
4.7(
33
)
Radon Gas - Testing

Serving El Cajon, CA and surrounding areas

In business since 2004

Free estimates

"The work that Dave’s company performed was great with the exception of the living room, that ended up being mid-matched. Dave’s crew let me know that because of this they would paint the whole living room. They asked me to call and set up an appointment and I did. The day came and nobody showed up. I called Denise and she stated her crew called in sick and they were leaving town the next day. She would have Dave call me. He didn’t, so I txt him the following week and he called and said it would be more money, which it shouldn’t as I was previously told they mid-matched it so they would make it right. He was supposed to call later in the week and never did. I find though everyone was nice, the professionalism was lacking. I would not use again because of this."
Recommended by96%of homeowners
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Radon Detection and Reduction questions, answered by experts

Long-term exposure increases lung cancer risks. Prolonged homestay individuals and smokers encounter heightened vulnerability and exposure concerns.

Your radon mitigation system may be loud because it’s time to replace it. Any sounds are usually from the inline fan that helps create the vacuum and resulting airflow. If you hear a new, loud mechanical or humming noise from your radon fan, it might be time to replace it. Most fans used in radon mitigation systems last up to 10 years, but may need to be replaced sooner.

If high radon levels are detected, steps include sealing entry points, installing a mitigation system, and retesting the air regularly to ensure reduced levels.

You'll need to test your home for radon after installing the mitigation system, then again every two years. If radon remains elevated, contact a licensed radon professional, either the contractor who installed the system or a different one, and have them evaluate the system. They may need to make some changes to improve its effectiveness and performance.

Radon detection is crucial as prolonged exposure to radon gas, a leading cause of lung cancer, poses significant health risks in residential environments.

The El Cajon, 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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