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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(
61
)
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

"They came back and checked on it when the levels weren't quite what they should be. I only have good things to say about them. They were very professional and knowledgeable. They seemed to have a lot of information about radon and how to have it removed from our house, and keep the levels down. The price was reasonable."
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

Your radon mitigation system may be loud because it’s time to replace it. Any sounds are usually from the inline fan that helps create the vacuum and resulting airflow. If you hear a new, loud mechanical or humming noise from your radon fan, it might be time to replace it. Most fans used in radon mitigation systems last up to 10 years, but may need to be replaced sooner.

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 present almost everywhere but, like sunlight, the concentration levels and how often you are exposed to it have a large part to play in just how dangerous it is. There are levels of radon that are acceptable inside a house, but above a certain limit, radon becomes a serious radioactive hazard that is a known cause of lung cancer. In fact, radon exposure is the number two leading cause of lung cancer (after smoking).

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.

Long-term exposure increases lung cancer risks. Prolonged homestay individuals and smokers encounter heightened vulnerability and exposure concerns.

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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