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Q: How do you prevent radon in your home?

• <div><p>Keeping radon from getting into your home is much better than having to get rid of it once it's already indoors. While there may not be a way to fully prevent radon from getting into your home, there are things you can do to reduce the gas's ability to enter. </p><p>Sealing foundation cracks and openings can help keep the gas from seeping inside. Improving air flow, such as by opening windows, can also be helpful. If you're building your home from scratch, talk to your contractor about using radon-resistant construction to keep the gas out.</p></div>

Q: Do air purifiers help with radon?

• <div><p>No, air purifiers are not an effective way to reduce or remove radon. Radon is a radioactive, inert gas that cannot be filtered by standard air purifiers, which are designed to capture particulates like dust and mold. While an air purifier can improve indoor air quality by removing other pollutants, it should not be relied upon for radon. The only effective solution for high radon levels is a dedicated radon mitigation system.</p></div>

Q: How much does a radon mitigation system cost?

• <div><p>The cost for a radon mitigation system typically ranges from $800 to $1,500, with an average around $1,000. The final price depends on several factors, including the size of your home, the severity of the radon issue, and the type of system required. Your home's foundation type also significantly impacts the cost. For example, sealing and ventilating an unfinished basement might cost around $4,600, while encapsulating a crawl space without a foundation slab can range from $1,500 to $15,000.</p></div>

Q: How is radon gas abatement professionally handled?

• <div><p>Abatement includes sealing entry points and venting with systems that reduce radon levels below recommended EPA limits. It is handled by certified professionals.</p></div>

Q: What is considered a safe or dangerous level of radon?

• <div><p>No level of radon is technically safe, but since it is present everywhere, complete avoidance is impossible. The average radon level in homes across the United States is 1.3 picocuries per liter (pCi/L). The Environmental Protection Agency (EPA) recommends taking preventative measures if your home's radon levels are between 2 and 4 pCi/L or higher.</p></div>

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Verified Reviews for Radon Detection And Reduction pros in Riverhead, NY

*The Angi rating for Radon Detection And Reduction companies in Riverhead, 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 Riverhead, 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 October 13, 2025

Reviewed in October 2025
We’ve worked with Ray twice now — first for a kitchen remodel and most recently for a full bathroom renovation — and both experiences have been excellent. Ray is reliable, responsive, and clearly takes pride in his work. The craftsmanship and attention to detail are outstanding, and he always...
Tri Build Construction
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Reviewed in October 2025
It was a pleasure working with Dynamic Drainage. They came the same day I called and gave me a free diagnostic. Very honest , efficient and did a great job!
Dynamic Drainage
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Reviewed in August 2025
RayCo Roofing & Construction did an amazing job with my roof repair! They responded quickly, showed up on time, and found the problem right away. The team was professional, respectful, and worked with great attention to detail. The repair was completed the same day, and now my roof is...
Rayco Roofing & Construction
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Reviewed in July 2025
I dealt with Ryan from rapid roofing and they were great. The company is quick to show up and give you an estimate, extremely professional, the job was completed two days after I agreed to the job, and most importantly everything they told me they were going to do was done and done right.
Rapid Roofing
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Reviewed in August 2024
Very reliable and responsible company. They spray for ticks and insects affecting the trees and ground.
Alternative Earthcare Tree & Lawn Systems, Inc.
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Reviewed in May 2023
Ray was very responsive and prompt in quoting the job, scheduling and completion. His technician was terrific
RTD Seamless Gutters
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Reviewed in April 2023
Led contacted me right away and came to my house the next day to review the work. My 25 year old mahogany deck had seen better days, and was in need of refreshing. Led and his man hammered every nail flush, sanded the entire 500 sq/ft deck and then power washed it to remove all of the "dust"...
Eled Construction
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Reviewed in December 2022
Excellent job and cleanup . Tree removal was done professionally and carefully . Quality and reasonable price . Would defunitely recommend them
Turuy Landscaping Services, Corp.
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Reviewed in September 2022
Excellent working with Jon and his team. They show up on time and work neat and fast. They are knowledgeable and friendly. I am alway confident that the install will go well when JML Installation’s is on the job. I won’t sure anyone else for custom window treatment installations.
JML Installations
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Reviewed in July 2022
Clean Solutions did and excellent job cleaning and drying the water damage in my basement. Mel was very friendly and helpful throughout the process. I would highly recommend this company!
CLEAN SOLUTIONS
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Find Radon detection and reduction specialists in Riverhead

Phase 1 Restoration Inc.

4.7(

)

Serving Riverhead, 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.
"

Response time2 days

1 neighbors recently requested a quote

Recommended by89%of homeowners

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Family First Environmental Corp.

4.8(

)

Serving Riverhead, NY and surrounding areas

In business since 2006

Free estimates

Offers commercial services

"Both Mike and Bob were very professional and presented themselves well as SMEs. Appreciate the service and glad my test results were not worse than expected."

Response time7 hrs

Recommended by96%of homeowners

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Landon Home Inspections, LLC - Home Facebook

4.8(

)

Serving Riverhead, NY and surrounding areas

In business since 2014

Free estimates

"After the project was done, he was very helpful with getting me references for companies that could help throughout the rest of the process."

Response time3 hrs

Response rate93%

Recommended by100%of homeowners

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POLO & ASSOCIATES HOME INSPECTIONS LLC

4.1(

)

Serving Riverhead, NY and surrounding areas

In business since 1995

Free estimates

Emergency services offered

"Very thorough inspection, uncovered several issues that I missed when looking at the home"

Recommended by64%of homeowners

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Anthi Environmental Corp.

5.0(

)

Serving Riverhead, NY and surrounding areas

Emergency services offered

"Very Professional, thorough and cost effective. Peter fulfilled his promise of removing the areas that tested lead positive at a GREAT price, was very prompt , professional and all in a timely manner. Would definitely use again. Highly recommended... Honest business."

+59

Response time40 mins

Recommended by100%of homeowners

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Jet Environmental Testing, Inc.

4.6(

)

Serving Riverhead, NY and surrounding areas

In business since 1998

Free estimates

Small jobs welcome

"We had contractors come in and give us a price for removal of what we thought was asbestos floor tile. A friend of ours who works in the school district told us to call Jet Environmental and get it tested. We did and as it turn out it wasn’t asbestos and save us a lot of money."

Response time5 hrs

Response rate98%

Recommended by57%of homeowners

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Global Restoration Services, Inc.

4.8(

)

Serving Riverhead, NY and surrounding areas

Free estimates

Emergency services offered

Warranties offered

"Excellent workmanship by Ken and Chris along with their crew. Efficient, trustworthy, and thorough .The house was unlivable due to some nasty mold and now it looks and smells like it was just built! I highly recommend this professional company to everyone!"

+24

Response time2 days

1 neighbors recently requested a quote

Recommended by100%of homeowners

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Northeastern Environmental Testing, Inc.

5.0(

)

Serving Riverhead, NY and surrounding areas

In business since 2018

Free estimates

Emergency services offered

Northeastern Environmental Testing specializes in environmental consultation & testing. Our expert team will treat your home as if it was our own. Navigating the remediation plan together until your home is good as new. We offer 24/7 service please call to set up your inspection today!

Response time6 hrs

Response rate100%

Recommended by100%of homeowners

Serving Riverhead, NY and surrounding areas

In business since 1977

Free estimates

Warranties offered

"Carlos and his crew were excellent. They did a beautiful job siding the house and replacing a window. Very neat, cleaned up everyday. Very courteous! Took their time taking down old siding and installing new siding. I would highly recommend this company. Absolutely beautiful!"

Recommended by100%of homeowners

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All States Air Duct Pro

3.1(

236

)

Serving Riverhead, NY and surrounding areas

In business since 1995

Free estimates

Emergency services offered

"o.k. Wasn't impressed
"

Recommended by49%of homeowners

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Showing 1-10 of 17

Radon Detection and Reduction questions, answered by experts

Keeping radon from getting into your home is much better than having to get rid of it once it's already indoors. While there may not be a way to fully prevent radon from getting into your home, there are things you can do to reduce the gas's ability to enter.

Sealing foundation cracks and openings can help keep the gas from seeping inside. Improving air flow, such as by opening windows, can also be helpful. If you're building your home from scratch, talk to your contractor about using radon-resistant construction to keep the gas out.

No, air purifiers are not an effective way to reduce or remove radon. Radon is a radioactive, inert gas that cannot be filtered by standard air purifiers, which are designed to capture particulates like dust and mold. While an air purifier can improve indoor air quality by removing other pollutants, it should not be relied upon for radon. The only effective solution for high radon levels is a dedicated radon mitigation system.

The cost for a radon mitigation system typically ranges from $800 to $1,500, with an average around $1,000. The final price depends on several factors, including the size of your home, the severity of the radon issue, and the type of system required. Your home's foundation type also significantly impacts the cost. For example, sealing and ventilating an unfinished basement might cost around $4,600, while encapsulating a crawl space without a foundation slab can range from $1,500 to $15,000.

Abatement includes sealing entry points and venting with systems that reduce radon levels below recommended EPA limits. It is handled by certified professionals.

No level of radon is technically safe, but since it is present everywhere, complete avoidance is impossible. The average radon level in homes across the United States is 1.3 picocuries per liter (pCi/L). The Environmental Protection Agency (EPA) recommends taking preventative measures if your home's radon levels are between 2 and 4 pCi/L or higher.

The Riverhead, NY homeowners’ guide to radon detection and reduction services

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What Is Radon Testing?
What is radon testing? Radon testing measures the presence and concentration of radon gas within indoor environments. Read on to learn more.