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*The Angi rating for Radon Detection And Reduction companies in Fredericksburg, 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 Fredericksburg, 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 May 06, 2026

Find Radon detection and reduction specialists in Fredericksburg

Avatar for The Radon Bros
The Radon Bros
5.0(
6
)
Radon Gas - AbatementRadon Gas - Testing

Serving Fredericksburg, PA and surrounding areas

Approved

Super Service Award Winner

In business since 2018

Free estimates

Warranties offered

"Replaced our aging radon fan for a reasonable price."
Installations
Installations
Installations
Installations
Installations

+8

Response time1 day
Response rate100%
14 neighbors recently requested a quote
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Avatar for C&S Home Inspections
C&S Home Inspections
4.8(
59
)
Radon Gas - AbatementRadon Gas - Testing

Serving Fredericksburg, PA and surrounding areas

Approved

In business since 2017

Free estimates

Customers say: Quick response

"Radon was over 6, now it's under 1. Job was done quickly."
House Inspection
Detached garage
Response time2 days
Response rate96%
3 neighbors recently requested a quote
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Avatar for Keystone Radon Mitigators
Keystone Radon Mitigators
4.7(
43
)
Radon Gas - AbatementRadon Gas - Testing

Serving Fredericksburg, PA and surrounding areas

In business since 2008

Free estimates

Emergency services offered

"adon After I contacted him, he responded promptly.  While evaluating the area that needed radon mitigation, he called to discuss an area that had not been evaluated by inspectors (not affiliated with him).  After accepting his price, we agreed on the day for the installation.  During the installation, he was respectful and communicative.  After completing the installation, he provided written warranties for me and the buyer.  I highly recommend Keystone Radon Mitigators.
"
Recommended by94%of homeowners
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Avatar for Roof 2 Basement Home Inspection Services, LLC
Roof 2 Basement Home Inspection Services, LLC
4.9(
63
)
Radon Gas - Testing

Serving Fredericksburg, PA and surrounding areas

In business since 2017

Free estimates

Credit card accepted

"Terry does a thorough inspection and has a great write up with extensive photos and details. He is very responsive to all requests. I highly recommend him!"
Response time8 hrs
Recommended by98%of homeowners
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Radon Detection and Reduction questions, answered by experts

Radon is the number one non-smoking cause of lung cancer in the United States, but it can cause some other concerning side effects in the meantime. If you have a raspy voice, chest pains, trouble breathing, difficulty swallowing, or any of the above, don’t hesitate to perform radon testing and install a mitigation system as soon as possible.

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.

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.

Radon detection is crucial as prolonged exposure to radon gas, a leading cause of lung cancer, poses significant health risks in residential environments.

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 Fredericksburg, 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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