Top-rated radon detection and reduction specialists.

Get matched with top radon detection and reduction specialists in Rancho Santa Fe, CA

Enter your zip and get matched with up to 5 pros

Need a pro for your radon detection and reduction project in Rancho Santa Fe, CA?

Select your specific project to find the pro for you.

Verified Reviews for Radon Detection And Reduction pros in Rancho Santa Fe, CA

*The Angi rating for Radon Detection And Reduction companies in Rancho Santa Fe, 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 Rancho Santa Fe, 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 July 29, 2026

Find Radon detection and reduction specialists in Rancho Santa Fe

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

Serving Rancho Santa Fe, 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
Request Quote
Avatar for San Diego Abatement Services
San Diego Abatement Services
4.5(
41
)
Radon Gas - AbatementRadon Gas - Testing

Serving Rancho Santa Fe, 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
Request Quote
Avatar for Vanguard Renovations
Vanguard Renovations
5.0(
4
)
Radon Gas - Testing

Serving Rancho Santa Fe, CA and surrounding areas

In business since 2015

Emergency services offered

Credit card accepted

"Everything worked out very well. Very courteous. Explained everything thoroughly and the work they do is fantastic."
Recommended by100%of homeowners
Request Quote
Avatar for KCS Restorations Inc
KCS Restorations Inc
4.7(
33
)
Radon Gas - Testing

Serving Rancho Santa Fe, 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
Request Quote
Radon Detection and Reduction questions, answered by experts

No level of radon is technically safe, but since it is present everywhere, complete avoidance is impossible. The average radon level in homes across the United States is 1.3 picocuries per liter (pCi/L). The Environmental Protection Agency (EPA) recommends taking preventative measures if your home's radon levels are between 2 and 4 pCi/L or higher.

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.

Ideally, no one will live in a house with elevated radon levels, as prolonged exposure increases the risk of serious health issues like lung cancer. However, homes with radon can be made safe through mitigation systems, such as active soil depressurization. Testing for radon regularly and addressing high levels helps ensure a safe living environment.

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.

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.

The Rancho Santa Fe, 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