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Find Radon gas testers in Harriman

Avatar for JCL Home Inspections
JCL Home Inspections
4.9(
26
)

Serving Harriman, 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."
Response time4 hrs
3 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Doctor House Inspections, LLC
Doctor House Inspections, LLC
4.9(
8
)

Serving Harriman, 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."
Deck issues
Oil line in concrete slab
Rusted oil tank
A boiler with a direct hot water heater
Loose electrical service entrance wire

+18

Response time4 hrs
Response rate100%
Recommended by100%of homeowners
Essential Home Services, LLC
5.0(
9
)

Serving Harriman, NY and surrounding areas

Approved

Super Service Award Winner

In business since 2000

Free estimates

Credit card accepted

"He was prompt and very professional. He explained the process and how long it would take. It was a pleasure to meet this young man. I would hire him and I'll refer him to family and friends. Thanks again for your assistance. MS. M. CRAWFORD "
Response time6 hrs
35 neighbors recently requested a quote
Recommended by11%of homeowners
Qualtek Testing Group, LLC
5.0(
1
)

Serving Harriman, NY and surrounding areas

Approved

Free estimates

Emergency services offered

Credit card accepted

At our company, your satisfaction is our top priority. We are committed to completing every job to the highest standards, ensuring exceptional quality and service. Discover our range of services and reach out today to book your free estimate. Let us show you the difference our dedication can make!

1 neighbors recently requested a quote
Recommended by100%of homeowners
Oakhill Home Inspections
5.0(
1
)

Serving Harriman, 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
Power House Inspection LLC
New to Angi

Serving Harriman, NY and surrounding areas

Approved

In business since 2024

Free estimates

Emergency services offered

We invite you to experience a tradition of customer satisfaction that will exceed your greatest expectations. Our professionalism and quality workmanship will accurately reflect your taste and lifestyle. From conception to completion, we work with you until the job is done. We are ethical, honest, and easy to communicate with. \n\nCall us today you'll be pleased you did. Thank you

6 neighbors recently requested a quote
Avatar for Real Pro Home Inspection LLC
Real Pro Home Inspection LLC
5.0(
74
)

Serving Harriman, NY and surrounding areas

In business since 2007

Free estimates

Emergency services offered

"Phil showed up on time and performed a detail inspection of the house with explanation and images for everything that was concerning. He provided the detail report within 24hour with radon report within a week."
Recommended by98%of homeowners
Avatar for Poseidon Home Inspections LLC
Poseidon Home Inspections LLC
5.0(
99
)

Serving Harriman, 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
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FAQs for radon gas testing projects in Harriman, 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 Harriman, NY homeowners’ guide to radon gas testings

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