*The Angi rating for Radon Detection And Reduction companies in Walnut Creek, 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 Walnut Creek, 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 18, 2026
Serving Walnut Creek, CA and surrounding areas
Approved
In business since 1986
Free estimates
Customers say: Quick response
"Peter and his team at MG Remediation are professionals. They did everything they told me they would do and the radon levels dropped significantly. Great communication, too, which always matters."
+4
Serving Walnut Creek, CA and surrounding areas
In business since 2004
Free estimates
Credit card accepted
"Very fast in response on all accounts and spent time to explain the results of the testing very pleased with the experience"
Serving Walnut Creek, CA and surrounding areas
In business since 2000
Free estimates
Emergency services offered
"They were very thorough and professional. I was very pleased with them."
Serving Walnut Creek, CA and surrounding areas
In business since 1997
Free estimates
Emergency services offered
"Look, you're not calling a company like FWDR because something happy has happened... Our refrigerator flooded our kitchen - exposing a small, long-term leak that had slowly destroyed our cabinets, drywall, and floors without for years our knowledge. We now had ourselves a water damage AND a mold problem and had no idea where to start. We were lost and stressed and didn't know who to call. I did a quick search and found FWDR because of all of their amazing Yelp reviews. One call to FWDR turned a stressful situation into a manageable project with knowledgeable support all along the way. Javier was always able to quickly and patiently answer my questions (and I had a lot of questions), he referred us to several companies to deal with prerequisite issues (asbestos and lead testing and removal), and it felt like he was there to walk us through the whole process. I can't tell you how much I appreciate the patience and consideration Javier, Santos, and Margarita showed every step of the way. They worked with the other vendors and my insurance directly to make sure that no time was wasted between services from different companies, the work was quick and thorough (proof received through testing), and every consideration was given to my family with two toddlers and small home during a pandemic - they did their very best to work around us and our day to day needs. I can't thank them or recommend them enough. Attentive, detailed, courteous, patient, thorough, and going well above and beyond in customer service - you really can't ask for more from a company you never really want to have to call in the first place!"
+27
Serving Walnut Creek, CA and surrounding areas
In business since 1991
Free estimates
Emergency services offered
"I like the fact that they get back to us right away. They are usually out within a day or so at least to give us a quote and then the same way they get the work done within a couple of days."
Serving Walnut Creek, 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.
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