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*The Angi rating for Radon Detection And Reduction companies in San Diego, 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 San Diego, 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 May 09, 2026

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

Serving San Diego, 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!!!"
2 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 San Diego, 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 San Diego, CA and surrounding areas

In business since 2004

Free estimates

"My husband and I are over the moon with the work Krugh Custom Services preformed at our house. We needed dry wall and painting done. Every employee showed up on time and proceeded professionally. They went above and beyond to ensure our house stayed clean while they were performing their work. After the work was finished Dave the owner called to ensure we were pleased with the work of his team. We will be needing the outside of our house painted in the next few month and we will for sure being hiring Krugh Custom Services for that job as well. Couldn't recommend this company enough!"
Recommended by96%of homeowners
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Radon Detection and Reduction questions, answered by experts

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

The cost for a radon mitigation system typically ranges from $800 to $1,500, with an average around $1,000. The final price depends on several factors, including the size of your home, the severity of the radon issue, and the type of system required. Your home's foundation type also significantly impacts the cost. For example, sealing and ventilating an unfinished basement might cost around $4,600, while encapsulating a crawl space without a foundation slab can range from $1,500 to $15,000.

Keeping radon from getting into your home is much better than having to get rid of it once it's already indoors. While there may not be a way to fully prevent radon from getting into your home, there are things you can do to reduce the gas's ability to enter. 

Sealing foundation cracks and openings can help keep the gas from seeping inside. Improving air flow, such as by opening windows, can also be helpful. If you're building your home from scratch, talk to your contractor about using radon-resistant construction to keep the gas out.

If your home has a sump pit, you can integrate it with a radon mitigation system. You can accomplish this by sealing the pump cover with an airtight lid that accommodates radon vent pipes and sump pump hoses. This allows the vent pipe to redirect the radon gas outside of your home.

Installing a mitigation system reduces radon levels, which can cause lung cancer, providing peace of mind and long-term health benefits. It can also increase your home’s value, as many buyers prefer properties with radon safety measures in place. The investment is relatively low compared to the potential health risks associated with prolonged radon exposure.

The San Diego, 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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