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*The Angi rating for Radon Detection And Reduction companies in New Castle, PA 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 New Castle, PA 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 September 05, 2026

Top-Rated Radon detection and reduction specialists in New Castle - Updated Nov 2026

Avatar for Alpha Radon, LLC
Alpha Radon, LLC
4.9(
34
)
Radon Gas - Abatement

Serving New Castle, PA and surrounding areas

Approved

In business since 2018

Free estimates

Warranties offered

"Alex and his crew showed up exactly on time and were very professional throughout the whole process. They asked me where I wanted the exhaust pipes placed as there were many options. After the work was completed Alex left a radon testing canister and explained how to use it. The pCi/L reading before the mitigation was 7 pCi/L and after it was < 0.4 pCi/L. To top things off, Alpha also has a great warranty. I couldn't be more pleased."
Radon System with Dark Brown Down-Spouting
Simple radon system
Laundry Room
Basement
Inside work

+1

Response time10 hrs
Recommended by100%of homeowners
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Avatar for Ohio Radon Testing and Mitigation Company
Ohio Radon Testing and Mitigation Company
5.0(
6
)
Radon Gas - AbatementRadon Gas - Testing

Serving New Castle, PA and surrounding areas

In business since 2020

Free estimates

Emergency services offered

"Very professional and friendly. Answered all my questions patiently. Problem appears to be solved."
Mitigation Install
Mitigation Install
Mitigation Install
Mitigation Install
Mitigation Install

+1

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

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

There are steps you can take as a homeowner to remediate radon yourself. While a radon reduction professional can make the biggest impact in your home, you can make efforts to improve radon levels on your own by sealing cracks, increasing ventilation, and testing for radon regularly.

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.

No level of radon is technically safe, but since it is naturally present everywhere, it is impossible to avoid entirely. 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 action to reduce radon levels if your home's test results are between 2 and 4 pCi/L or higher.

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

The New Castle, PA 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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