*The Angi rating for Radon Detection And Reduction companies in San Ramon, 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 Ramon, 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 October 06, 2025
Serving San Ramon, CA and surrounding areas
In business since 2000
Free estimates
Emergency services offered
"The person that came was fine. He just walked around and did the inspection. He also gave us some recommendations. The person was prompt, knowledgeable, and reasonably priced. He was very punctual."
Serving San Ramon, CA and surrounding areas
In business since 1997
Free estimates
Emergency services offered
"The experience with Justin at Fire & Water Damage Recovery was excellent. They were referred by the plumbing company that serviced my sump pump. We still got 3 estimate, Justin's estimate was in the middle but I felt good with Justin based on our phone conversation and the referral so we went with this company. Justin did tell me that he might have estimated on the high side because he does not like to surprise the homeowners. What a surprise when I go the final invoice. The final invoice came in much lower and was very close or lower than the lowest estimate I got. Justin and his team also took pictures of how the place was before and after for me to see. They even took pictures of the pathway that they took to get to the crawl space to assure me that they kept the place clean when they got in and out. I was very satisified with Justin and his company."
+27
Serving San Ramon, CA and surrounding areas
In business since 1991
Free estimates
Emergency services offered
"We needed to turn our home into a rental property. We had started to work with another contractor. Unfortunately, the contractor had our start date for a month after we needed the project completed. I searched Angie's List and found S&Y Corporation. They came to our house, within an hour after my first call and started the project the very next day.
S&Y Corporation is one of the most professional contractors that we have worked with. Their employees are skilled artisans. Our floors, walls and electrical work were a WOW, for us. I was so impressed with their service, that I wish we had found them sooner. I would hire them again, in a heart beat!. Mr. Young Ko takes pride in the work of his team and was good with follow up, before, during and after the projects. Great job! I will hire S&Y again."
Serving San Ramon, CA and surrounding areas
In business since 2005
Free estimates
Credit card accepted
"Hector did respond to me and did fix the problem with the panels. Overall it was a good job."
+48
From average costs to expert advice, get all the answers you need to get your job done.
The cost of a radon mitigation system in San Francisco, CA, depends mostly on the type of system being installed. Use this guide to learn about your options.
Find out what impacts radon testing costs, including average prices for DIY kits and professional services, so you can protect your home and budget confidently.
The cost of a radon mitigation system depends mostly on the type of system being installed. Use this guide to learn about your options.
Knowing how to test for radon will keep your home free and safe from this odorless gas—you just have to decide whether to do it yourself or hire a pro.
How does a radon mitigation system work? Learn more about how it pulls air and radon from the soil and expels it before it can enter your house.
How long does a radon mitigation system last? A properly installed and maintained system can last 20 years or more, but various issues can reduce the life span.
