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Verified Reviews for Radon Detection And Reduction pros in Sag Harbor, NY

*The Angi rating for Radon Detection And Reduction companies in Sag Harbor, 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 Sag Harbor, 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 December 16, 2025

Find Radon detection and reduction specialists in Sag Harbor

Avatar for Phase 1 Restoration Inc.
Phase 1 Restoration Inc.
4.7(
21
)

Serving Sag Harbor, 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.
"
Additional Photos
4 neighbors recently requested a quote
Recommended by89%of homeowners
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Avatar for Family First Environmental Corp.
Family First Environmental Corp.
4.8(
29
)

Serving Sag Harbor, 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 time6 hrs
Recommended by96%of homeowners
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Avatar for Landon Home Inspections, LLC - Home Facebook
Landon Home Inspections, LLC - Home Facebook
4.8(
4
)

Serving Sag Harbor, 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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Avatar for Anthi Environmental Corp.
Anthi Environmental Corp.
5.0(
9
)

Serving Sag Harbor, 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."
Lead removal under HPD violations
Mold testing and remediation
Mold remediation
Lead removal under HPD violations
Mold testing and remediation

+59

Recommended by100%of homeowners
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Avatar for Northeastern Environmental Testing, Inc.
Northeastern Environmental Testing, Inc.
5.0(
2
)

Serving Sag Harbor, 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!

Recommended by100%of homeowners
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Radon Detection and Reduction questions, answered by experts

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.

Use a radon test kit or hire professionals to conduct a detailed assessment of radon levels in your home.

If your home has a sump pit, you can integrate it with a radon mitigation system. You can accomplish this by sealing the pump cover with an airtight lid that accommodates radon vent pipes and sump pump hoses. This allows the vent pipe to redirect the radon gas outside of your home.

You'll need to test your home for radon after installing the mitigation system, then again every two years. If radon remains elevated, contact a licensed radon professional, either the contractor who installed the system or a different one, and have them evaluate the system. They may need to make some changes to improve its effectiveness and performance.

A homeowner can install a radon mitigation system on their own. But it’s a challenging DIY that requires a lot of knowledge about radon mitigation as well as familiarity with local regulations. You do not want to risk an improper installation that leaves the system unable to detect radon or gives it a shortened life span. Relying on a professional is the surest way to guarantee a successful installation.

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

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

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