Top-rated radon detection and reduction specialists.

Best radon detection and reduction specialists near Del Sur, CA

Enter your zip and get matched with up to 5 pros

Need a pro for your radon detection and reduction project in Del Sur, CA?

Select your specific project to find the pro for you.

Verified Reviews for Radon Detection And Reduction pros in Del Sur, CA

*The Angi rating for Radon Detection And Reduction companies in Del Sur, 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 Del Sur, 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 September 22, 2026

Top-Rated Radon detection and reduction specialists in Del Sur - Updated Nov 2026

Avatar for Radon Solutions California, LLC
Radon Solutions California, LLC
4.4(
8
)
Radon Gas - AbatementRadon Gas - Testing

Serving Del Sur, 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
Request Quote
Avatar for Restoration Hunter
Restoration Hunter
5.0(
3
)
Radon Gas - Testing

Serving Del Sur, CA and surrounding areas

Approved

In business since 2022

Free estimates

Warranties offered

"He was friendly, very professional, and answered all my questions clearly about how mold happens in a home. His reasonable estimate and scope of work. What are the steps for mold remediation? Furthermore, I had delicate items around the work area. He was very successful in making sure that nothing was damaged. "Think floor demolition in a China shop" where none of the dishes gets broken. I highly recommend restoration Hunter if you have to deal with mold in the home."
Recommended by66%of homeowners
Request Quote
Radon Detection and Reduction FAQs, answered by experts

The soil beneath your house is most likely what’s causing an increased level of radon. This is because soil holds radioactivity for a long time and it’s also what most buildings are built on. Another common source of radon is water from a source that hasn’t been through periodic radon tests, such as well water. Over time, the radon from the soil can inhabit other parts of your house like the foundation or plumbing.

No, radon mitigation systems do not decrease home value or make a home harder to sell. In areas where homes experience similar radon exposure risks, a radon mitigation system is viewed as an improvement. Potential homebuyers often opt to buy a home with a radon mitigation system already installed to reduce the risk of cancer for their families.

Your radon fan needs to operate 24/7 to be effective. The only time the fan isn't operating is during its replacement. Radon levels in the home can increase within hours if the fan stops working or something obstructs the stack vent. Fortunately, radon systems require no downtime maintenance between fan changes.

Installation typically takes 1-2 days, depending on the system and property layout.

The natural breakdown of uranium in soil, rock, and water can cause radon to appear in a home. The gas seeps into homes through cracks in foundations, walls, or floors, as well as through gaps around pipes or construction joints. Radon levels are influenced by soil composition, building materials, and ventilation. Poorly sealed or airtight homes can trap radon, allowing it to accumulate.

The Del Sur, 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