
Serving Bronxville, NY and surrounding areas
Approved
In business since 2010
Free estimates
Emergency services offered
"Quick response to request for quote, performed radon test as scheduled and emailed results quickly."


*The Angi rating for Radon Detection And Reduction companies in Bronxville, NY 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 Bronxville, NY 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 June 02, 2026

Serving Bronxville, NY and surrounding areas
Approved
In business since 2010
Free estimates
Emergency services offered
"Quick response to request for quote, performed radon test as scheduled and emailed results quickly."


Serving Bronxville, NY and surrounding areas
Approved
In business since 2015
Free estimates
Customers say: Quick response
"I had a great experience with Joe , getting a co-op unit inspected. His price was very reasonable and he was very accommodating when unexpected obstacles occurred on the day of the inspection. He was very thorough and knowledgeable. I love that he explained everything at the inspection, which was very helpful. Everything was also written out in a detailed report that he sent very promptly. We ended up not purchasing the unit. What really helped us with this difficult decision is Joe's leveled and unbiased relaying of what he found at the inspection. He didn't exaggerate any flaws for example. At the end of the day we feel like we dodged a bullet after the inspection and will definitely be hiring Joe again once we find a home to purchase. Highly recommend him."

Serving Bronxville, NY and surrounding areas
Approved
In business since 2014
Customers say: Quick response
"Olivier was terrific. He was incredibly thorough and left no detail out of his inspection or his report. He took the time necessary to inspect all elements of the inside and outside of the home, he was patient in explaining what he found, and he was able to put all his comments within a helpful perspective. I would recommend him 100% and would use him again without hesitation."





+18

Serving Bronxville, NY and surrounding areas
Approved
Small jobs welcome
Credit card accepted
Offers commercial services
"Angstrom Testing used a moisture meter and found that one of the kitchen walls and an area of the kitchen ceiling in my mom's apartment were wet. Then they took an air sample in the kitchen and sent the sample to the lab to determine the level of mold in the air. After that, they made a cut into the wet area of the kitchen ceiling and found a dripping water pipe. The top side of the ceiling was black with mold. They also took a piece of sheetrock out of the top of the wet kitchen wall and found more mold on the back of the wall (yuck!!).
They called me two days later with the air test results, and they told me that the level of mold in the air was very high. They also told me that there was probably a connection between my mom's symptoms and high levels of mold in the air. Makes sense. They also told me that that my mom should stay upstairs with me and my husband until we get rid of the moldy ceiling and wall in her apartment.
A few days after they called, Angstrom emailed me a report with all of the details of what they did and found. In the report, they wrote recommendations and procedures that a mold removal contractor should follow to safely remove the mold and dry and treat the wood wall frames and wood ceiling. Since the level of mold in the air was so high, they said in their report that the kitchen air should be cleaned with an air cleaner and that the kitchen appliances, cabinets, and floor should be wiped down to get rid of all the mold spores that were laying around.
I really appreciated all the work they did and all of the advice that they gave me to help me and my mom. My mom is now living upstairs with me and my husband, and she says that she is already starting to feel better. Although my husband is not too happy (LOL). Great company! Thanks.
"





Serving Bronxville, NY and surrounding areas
Approved
In business since 2014
Free estimates
Emergency services offered
\nWe are a Veteran, minority owned company founded in 2009. we provide the most efficient, courteous and professional service of any environmenal around. we provide prompt service and are on call 24/7.\nOur vision is to inform the public and teach about the hazards of lead, mold, asbestos, radon and many other hazardous materials in commercial and residential properties. and to keep people healthy and safe.





Serving Bronxville, NY and surrounding areas
Approved
In business since 1987
Free estimates
Emergency services offered
"Men came earlier than scheduled,went right to work,and finished the job in about an hour. They were friendly and professional,answering my questions,and cleaning up afterwards.I highly recommend them.The price was almost 5 times less than the other company I got an estimate from. Highly satisfied.
"


Serving Bronxville, NY and surrounding areas
In business since 2018
Free estimates
Warranties offered
"His report was very detailed with pictures, he fallow up to make sure I got my report, great communication and great customer service, he didn't miss anything I didn't see"





+7

Serving Bronxville, NY and surrounding areas
In business since 2018
Free estimates
Emergency services offered
"Mike is absolutely amazing. We wanted our basement air tested so we can safely work there and he did all the tests and advised us on a number of things that have indeed greatly improved the air quality. He also volunteered to take a look through our house and he identified mold in our bathroom that I hadn't even seen! He told us exactly what to do to get rid of it and it worked. I highly recommend Mike."



Serving Bronxville, NY and surrounding areas
In business since 1988
Free estimates
Credit card accepted
"Radon levels haven't been over 1.6 since the install. Very professional from the 1st call to finishing the job. Highly recommend!"

Serving Bronxville, NY and surrounding areas
In business since 2017
Credit card accepted
"Exceptional service from a well groomed, uniformed technician ..:very honest And knowledgeable ."





+2
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 New York, NY, depends mostly on the type of system being installed. Use this guide to learn about your options.

Find out the average radon testing cost in New York, NY. Learn what you can expect to pay for local testing services to keep your home safe from radon gas.

The cost of a radon mitigation system depends mostly on the type of system being installed. Use this guide to learn about your options.

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.