*The Angi rating for Radon Detection And Reduction companies in Carlsbad, 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 Carlsbad, 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 29, 2026
Serving Carlsbad, CA and surrounding areas
Approved
In business since 2006
Free estimates
Emergency services offered
"Original estimate, management and office staff, arrival and completion time, care of customer's property, clean-up and price were all excellent.
"
Serving Carlsbad, CA and surrounding areas
Approved
In business since 1985
Emergency services offered
Warranties offered
"Professional, prompt, courteous, completed in one day. Responsive to emails and all questions. Left no mess."
+2
Serving Carlsbad, CA and surrounding areas
In business since 2002
Free estimates
Emergency services offered
"Job went very well. All Phases & Sons responded immediately, corrected issues very promptly and in a very professional manner. Marcus and his sons are very knowledgeable in the water damage mitigation and restoration industry and very well respected in the industry. As a retired insurance adjuster, I would not hesitate to contact All Phases for any water mitigation, restoration or plumbing needs."
+6
Serving Carlsbad, CA and surrounding areas
In business since 2015
Emergency services offered
Credit card accepted
"Everything worked out very well. Very courteous. Explained everything thoroughly and the work they do is fantastic."
Serving Carlsbad, CA and surrounding areas
In business since 2004
Free estimates
"The work that Dave’s company performed was great with the exception of the living room, that ended up being mid-matched. Dave’s crew let me know that because of this they would paint the whole living room. They asked me to call and set up an appointment and I did. The day came and nobody showed up. I called Denise and she stated her crew called in sick and they were leaving town the next day. She would have Dave call me. He didn’t, so I txt him the following week and he called and said it would be more money, which it shouldn’t as I was previously told they mid-matched it so they would make it right. He was supposed to call later in the week and never did. I find though everyone was nice, the professionalism was lacking. I would not use again because of this."
From average costs to expert advice, get all the answers you need to get your job done.
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.
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.
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.
