Top-rated radon gas testers.

Get matched with top radon gas testers in Bronxville, NY

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

Find Radon gas testers in Bronxville

Avatar for Lance Dorfi, LLC
Lance Dorfi, LLC
4.8(
59
)

Serving Bronxville, NY and surrounding areas

Approved

In business since 2010

Free estimates

Emergency services offered

"I value expertise and we are working together to find the source of the radon readings and will discuss remediation after the next test results."
Job Site
Response time2 days
26 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for JCL Home Inspections
JCL Home Inspections
4.9(
26
)

Serving Bronxville, NY and surrounding areas

Approved

In business since 2015

Free estimates

Customers say: Quick response

"Very communicative (reached out right away to arrange an appointment and checked in on us). Was on time, knowledge and thorough. Our report was delivered within hours of the inspection."
Response time4 hrs
3 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Angstrom Testing Services LLC
Angstrom Testing Services LLC
4.9(
9
)

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!!). <br /> 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. <br /> 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. <br /> 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. <br />"
Ground water infiltration occurred through the concrete slab in two rooms on the ground floor of the house causing water damage and mold growth on the overlying flooring. The cause of the water infiltration appears to be associated with cracks and a crater in the concrete slab, which is believed to have been caused by pile driving work being performed during the construction of an adjacent building.
Mold in HVAC Coil Compartment
Construction/demolition work in an  apartment unavoidably released high levels of dust that migrated into adjacent apartments. Dust containment methods, such as negative air filtration and poly sheeting, should have been used to prevent dust migration into adjoining spaces. Settled dust samples were collected from a table & curtain rod in a nearby apt, which revealed the presence of substantially elevated levels of silica and asbestos in the dust. Asbestos and silica are known carcinogens.
Water sampling
Recommended by44%of homeowners
Avatar for Phase 1 Restoration Inc.
Phase 1 Restoration Inc.
4.7(
21
)

Serving Bronxville, NY and surrounding areas

Approved

In business since 1987

Free estimates

Emergency services offered

"The rep came out and reviewed the areas of concern.  He gave me an estimate on the spot. The next day I decided to go with JBH and the project was scheduled for the following week.  The workers arrived within the scheduled time period and they were very pleasant to work with. They were responsive, efficient and neat. The job was completed in no time. <br />"
Additional Photos
Response time2 days
1 neighbors recently requested a quote
Recommended by85%of homeowners
Oakhill Home Inspections
5.0(
1
)

Serving Bronxville, NY and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

I pride my company on reliability, great communication, integrity, and quality work. I am an expert in home inspections, mold testing and radon testing and remediation. I will do my absolute best to keep you as educated and informed on your particular inspection project. I look forward to earning your business! Book with me online or feel free to give me a call today! My focus is protecting your home investment.\n\nThank You,\nCharles Rauch\nOakhill Home Inspections

Response time5 hrs
11 neighbors recently requested a quote
Avatar for ASAP Environmental Consultants
ASAP Environmental Consultants
New to Angi

Serving Bronxville, NY and surrounding areas

Approved

In business since 2014

Free estimates

Emergency services offered

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction, from the start to the completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.\n

1 neighbors recently requested a quote
Avatar for Poseidon Home Inspections LLC
Poseidon Home Inspections LLC
5.0(
99
)

Serving Bronxville, NY and surrounding areas

In business since 2009

Free estimates

Warranties offered

"Outstanding - Andy is an exceptionally thorough and professional building inspector. He will take you over every square inch of the house, test everything and explain everything he finds. His report was delivered as promised and contained very useful information. Highly recommended to all."
Recommended by100%of homeowners
Avatar for Northeast Mitigation Services
Northeast Mitigation Services
4.9(
80
)

Serving Bronxville, NY and surrounding areas

In business since 2005

Free estimates

Emergency services offered

"Fernando answered my call and was at my house the same day. I had a 19 year old radon mitigation system in place, but I had not had it inspected since I first purchased the house. The basement which was normally never used for other than a laundry room was to become a teen hangout/crash pad. I read that it should be inspected every few years and Fernando confirmed that. I wanted to make sure that the system was working properly before turning this space over to kids. Luckily, the fan was still working all those years later. He replaced the pipe outside of the house with PVC and extended it past the gutters and roof. He also replaced another tube like/straw that I forgot what it was called. All in all, Fernando was prompt, attentive, and knowledgeable. I did mention to him that I may have my roof replaced and he gave me some tips so that no roofing debris will fall in the pipe while they're working. I feel confident that if I need to contact him again, he will be as prompt and diligent as our first meeting. Thank you!"
Recommended by96%of homeowners
...
Showing 1-10 of 109
FAQs for radon gas testing projects in Bronxville, NY

Radon is the second leading cause of lung cancer in the U.S. The gas seeps through cracks in foundations and collects in basements and other low areas. Once you breathe it in, radioactive particles lodge in lung tissue and do long-term damage. Because you can’t see or smell radon, the EPA recommends testing your home every two years—and after major renovations—to keep your family safe.

Yes—every home should be tested. The EPA advises doing it at least every two years and any time you remodel, buy, or sell. On average, one in 15 houses nationwide sits above the recommended limit, and the only way to know where yours stands is a formal test. The equipment simply measures gas levels and won’t change your indoor environment, so the process is completely harmless.

Certified radon professionals—often home inspectors or dedicated radon mitigation contractors—handle testing. These radon testing professionals follow EPA protocols and use calibrated instruments to check levels throughout your house. Hiring a certified radon specialist means results you can trust for real estate deals, insurance requirements, and, most importantly, your family’s health.

Inspectors specialize in measuring radon gas levels, while licensed mitigation contractors design and install the systems that remove it. If your test comes back high, your inspector can point you to a qualified mitigation pro who will size and install the right fan, piping, or other equipment to bring levels down.

No—standard home air purifiers don’t touch radon. They’re built to trap dust and pollen, not radioactive gas. If testing shows high levels, you’ll need a dedicated mitigation system that vents the gas from beneath your home to the outdoors. Relying on a room purifier alone won’t keep your indoor air safe.

Opening a few windows in your home might dilute radon for a short time, but the gas seeps back in as soon as they’re closed. For a lasting fix, you’ll need a professional mitigation system—often a sub-slab depressurization fan—that pulls radon from beneath the foundation and safely vents it outside.

The Bronxville, NY homeowners’ guide to radon gas testings

From average costs to expert advice, get all the answers you need to get your job done.