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Verified Reviews for Radon Detection And Reduction pros in Sewell, NJ

*The Angi rating for Radon Detection And Reduction companies in Sewell, NJ 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 Sewell, NJ 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 August 04, 2025

Find Radon detection and reduction specialists in Sewell

Avatar for Radon Shield LLC
Radon Shield LLC
4.9(
103
)
Radon Gas - AbatementRadon Gas - Testing

Serving Sewell, NJ and surrounding areas

In business since 2014

Free estimates

Emergency services offered

"Radon Shield was hired after I got a higher then expected reading for radon in by home when selling it. Benedict shared a lot of great advice about radon gas in the home, he was able to schedule the install in a very fast time frame which was extremely helpful because I was selling my home. The quality of work was outstanding and he did a great job explaining thing to me and by wife. He also did a great job cleaning up after the install. I would hire Radon Shield in the future in needed."
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+10

Recommended by100%of homeowners
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Avatar for Wisser Construction & Mold Remediation
Wisser Construction & Mold Remediation
5.0(
9
)
Radon Gas - Testing

Serving Sewell, NJ and surrounding areas

In business since 2000

Free estimates

Emergency services offered

"Excellent service from Wisser taking care of my mold situation! Professional, courteous, and responsive. Thanks so much!"
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+1

1 neighbors recently requested a quote
Recommended by88%of homeowners
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Huber Radon
3.9(
4
)
Radon Gas - Abatement

Serving Sewell, NJ and surrounding areas

In business since 1986

Free estimates

Offers commercial services

Huber Radon is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

Response time1 day
Recommended by66%of homeowners
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Avatar for All States Air Duct Pro
All States Air Duct Pro
3.1(
236
)
Radon Gas - AbatementRadon Gas - Testing

Serving Sewell, NJ and surrounding areas

In business since 1995

Free estimates

Emergency services offered

"Hired vendor to perform the coupon deal.  Found mold in the unit; they tested and cleaned the unit, and duct work.  They were courteous, well informed.
"
Before & After Air Duct Cleaning
Recommended by49%of homeowners
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Avatar for United Emergency Services
United Emergency Services
5.0(
4
)
Radon Gas - Testing

Serving Sewell, NJ and surrounding areas

In business since 2023

Free estimates

Emergency services offered

"United Emergency Services did an outstanding job on my home. They were punctual, professional, and worked extremely efficiently to get back home back together in a timely manner. 10/10 would use again."
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+2

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

Radon is a cancer-causing radioactive gas that poses serious health risks, infiltrating homes through foundation cracks and unnoticed spaces.

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 lifespan of a radon mitigation system depends on the type of system and its maintenance. With proper care, a system can last for many decades. Passive systems tend to last longer as they have fewer components that require replacement. Active systems, which have more moving parts like fans, generally have a shorter lifespan. For instance, water filtration devices and active pressurization systems require more frequent maintenance. While the system as a whole is durable, the radon fan in an active system typically has a lifespan of 5 to 10 years and will need to be replaced. As long as the fan is working, the mitigation system should function correctly.

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.

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 Sewell, NJ homeowners’ guide to radon detection and reduction services

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