*The Angi rating for Radon Detection And Reduction companies in San Dimas, 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 Dimas, 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 March 22, 2026
Serving San Dimas, 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."
Serving San Dimas, 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!!!"
Serving San Dimas, CA and surrounding areas
Approved
In business since 2023
Free estimates
Emergency services offered
"The work went great. They were very fast and very professional. They did an excellent job on something we've needed done for years."
+31
Serving San Dimas, CA and surrounding areas
In business since 1998
Free estimates
Emergency services offered
"not that great. basically paid $99 to get an estimate. included cleaning roof and minimal repairs. took a while to get appointment, and then when they came, they didn't even do the work! gave a really big estimate and then re-seheduled to have someone else do the work. they wouldn't totally replace the roof, gave different estimates to repair, I went with a different company to do a full roof rplacement."
Serving San Dimas, CA and surrounding areas
Free estimates
Emergency services offered
Credit card accepted
"They were very responsive, very quiet, very clean. They protected the house with sheeting and they took care of the paper works and testing and they make sure that it was tested and everything was up to code. They also help me to find out people to rebuild the kitchen."
+39
Serving San Dimas, CA and surrounding areas
In business since 1984
Free estimates
Emergency services offered
"Very Good. No problems. I suggest that if your looking to remodel to use Unique."
Serving San Dimas, CA and surrounding areas
In business since 2022
Free estimates
Credit card accepted
With several years experience, we work hard to bring each customer the best possible service and quality available. We look forward to working with you on your next project. We welcome your questions and thank you for your interest. Call today!
Serving San Dimas, CA and surrounding areas
In business since 1995
Emergency services offered
Credit card accepted
We are open Monday thru Saturday 7am to 7 pm. We are here to serve you with professionalism and quality remodels, don't settle for less. Shop us first, we are licensed and insured and provide great customer service!
+14
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 Los Angeles, CA, depends mostly on the type of system being installed. Use this guide to learn about your options.
The cost of a radon mitigation system depends mostly on the type of system being installed. Use this guide to learn about your options.
Get clear answers on how much radon remediation costs, including average prices, key cost factors, and tips to save money on your home’s radon mitigation.
Radon is a gas that you can't see or smell and is harmful to your health. If your home has radon, you need to know who installs radon mitigation systems.
What is radon gas? Find out what this radioactive gas is, why it is dangerous, how it gets in your home, and how to mitigate it.
What is radon testing? Radon testing measures the presence and concentration of radon gas within indoor environments. Read on to learn more.
