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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

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

Avatar for C&S Home Inspections
C&S Home Inspections
4.8(
60
)
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%
5 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 FAQs, 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.

The fan that pulls the radon out of the air needs to run continuously, so you may see an increase in your electric bill once you install the mitigation system. Additionally, you may see an increase in your heating or cooling bills, as the fan can cause some loss of hot or cool air.

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.

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.

Testing every 2-5 years or upon adjusting occupancy or structural changes maintains safe environments.

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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