*The Angi rating for Radon Detection And Reduction companies in Diamond Bar, 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 Diamond Bar, 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 Diamond Bar, 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 Diamond Bar, CA and surrounding areas
Approved
In business since 2006
Free estimates
Emergency services offered
"They're very reliable and dependable. They're also punctual!"
Serving Diamond Bar, 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 Diamond Bar, 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 Diamond Bar, 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 Diamond Bar, 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 Diamond Bar, 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 Diamond Bar, CA and surrounding areas
Since our founding, Brandford Restoration Services has been known for quality services, exceptional efficiency and the highest level of professionalism. No matter what service you’re looking for, we guarantee to not only meet, but exceed your expectations and ensure your full satisfaction.\n\nOur team is up for every job, managing projects with the skill and experience our clients have come to expect. Please get in touch to learn more about our team, our company or for details about the services we provide.
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.
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.
If you’re looking to buy a house, a home inspection can uncover hidden hazards that could pose a health risk to your household. Here’s what to know.
What is radon testing? Radon testing measures the presence and concentration of radon gas within indoor environments. Read on to learn more.
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.
