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*The Angi rating for Radon Detection And Reduction companies in Inverness, 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.

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Last update on April 16, 2026

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Bay Works Tile & Stone
3.4(
31
)

Serving Inverness, CA and surrounding areas

In business since 2005

Free estimates

Credit card accepted

"Hector Garcia came out promptly to survey the job. He gave us a price the next day. The price was better than that of the other installer we contacted. The next Day, Dave, the supervisor came out and made templates. A couple of days later Dave picked up our granite from the supplier. After two working days Dave and his crew returned with our granite which had been cut to fit the project. About 5 hours later they completed the installation. We love our granite. They did a great job!"
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Recommended by70%of homeowners
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Radon Detection and Reduction questions, answered by experts

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 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.

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

Radon is the number one non-smoking cause of lung cancer in the United States, but it can cause some other concerning side effects in the meantime. If you have a raspy voice, chest pains, trouble breathing, difficulty swallowing, or any of the above, don’t hesitate to perform radon testing and install a mitigation system as soon as possible.

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.

The Inverness, CA homeowners’ guide to radon detection and reduction services

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