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Find Radon gas testers in Phoenix

Avatar for G3 Environmental
G3 Environmental
5.0(
17
)

Serving Phoenix, AZ and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"Jason and his crew are excellent! They handle all of our environmental testing and provide reports fast and sufficient. Always there if we need them! Very professional!"
Elementary Inspection
Hotel Water Loss
Blood Borne
Response time7 hrs
15 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Arizona Environmental Specialist
Arizona Environmental Specialist
4.8(
23
)

Serving Phoenix, AZ and surrounding areas

In business since 2007

Free estimates

Small jobs welcome

"I spoke with Collin who was extremely helpful, informative, and went above and beyond to give me peace of mind even before moving forward with any work. I made it clear we had many free visual inspections scheduled and had one air test sample done. So rather than charge us and do another air test and inspection, he gave a very thorough second opinion and gave me additional options of over the counter products to use to minimize exposure in the meantime while awaiting results. Speaking with him has really given me more peace of mind and information than the on site inspections we have had so far. When we get all the information needed, I definitely plan to move forward with any repairs and remediation with Collin. He was so above and beyond and thorough before we are even really customers! Really shined!"
Response time12 hrs
Recommended by100%of homeowners
Avatar for Advanced Drying Inc
Advanced Drying Inc
4.7(
30
)

Serving Phoenix, AZ and surrounding areas

In business since 2010

Free estimates

Emergency services offered

"I could not have asked for a better mold inspection and remediation than Dustin and his team.  Very professional, knowledge and explained everything thoroughly.  My home is now my safe haven after a successfully remediation with Advanced Drying. Don't hesitate for a second to call.

"
Response time7 hrs
Recommended by95%of homeowners
Avatar for Indoor Air Quality Testing, LLC
Indoor Air Quality Testing, LLC
4.5(
6
)

Serving Phoenix, AZ and surrounding areas

In business since 2005

Quality Detailed Analysis Reporting Reasonable Prices Fast Turnaround.\n\nIndoor Air Quality Testing, LLC tests for indoor air quality. Toxic molds in a home or commercial property can directly affect the quality of the air you breathe. We conduct Mold Investigations, Mold Testing and Reporting on all manner of Indoor Air Quality issues, including, but not limited to, residential, commercial, and real estate pre-purchase inspections for buyers and sellers. We provide post-remediation final clearance testing. All samples are tested by an EMLAP Certified Laboratory. All analytical data is interpreted, compiled and delivered in a graphically illustrated, bound report to quantify the degree, or absence of, potential indoor bio-burden conditions.\n\nWe will respond to all inquiries as soon as possible.\n\nSample data turn around time is quick.\n\nQuality, bound, detailed analysis in each report.\n\nIf you're looking for a top quality, professional testing firm at a reasonable price, Indoor Air Quality Testing, LLC is the company for you!

Recommended by83%of homeowners
Avatar for Syntech Environmental LLC
Syntech Environmental LLC
4.7(
15
)

Serving Phoenix, AZ and surrounding areas

In business since 2009

Free estimates

Emergency services offered

"Syntech environmental was outstanding. They were quick to respond when we needed them for some environmental testing. Jason and Michael worked together to ensure that we were able to get the service that we needed when we needed it thanks again"
Recommended by93%of homeowners
Avatar for Masizo Restorations
Masizo Restorations
5.0(
5
)

Serving Phoenix, AZ and surrounding areas

In business since 2002

Free estimates

"I had a remodel project in my kitchen and it turned out great, I could not ask for a better contractor to perform the scope of work at hand! Steve was very communicative and performed with precise accuracy! I highly recommend Masizo Development if you’re looking to remodel your home!"
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+17

Response time1 day
Recommended by100%of homeowners
L.C. Terry and Sons
5.0(
4
)

Serving Phoenix, AZ and surrounding areas

In business since 1995

Free estimates

Credit card accepted

"Superb job!!! Mr Terry, his sons, and one other person showed up promptly at 9 am, as promised. They got right to work smashing the offending slab. They cleaned up as they worked. They were polite and kept thanking us for the work. This is a small family owned and operated business that I would absolutely recommend hiring!! Thank You LC Terry and Sons for a job well done!!"
Recommended by100%of homeowners
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FAQs for radon gas testing projects in Phoenix, AZ

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 Phoenix, AZ homeowners’ guide to radon gas testings

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