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*The Angi rating for Radon Detection And Reduction companies in Danville, 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 Danville, 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 July 20, 2026

Find Radon detection and reduction specialists in Danville

Avatar for C&S Home Inspections
C&S Home Inspections
4.8(
59
)
Radon Gas - AbatementRadon Gas - Testing

Serving Danville, PA and surrounding areas

Approved

In business since 2017

Free estimates

Customers say: Quick response

"I would definitely recommend C&S home inspections! I had a Radon Mitigation system installed and had nothing but a positive experience. They are extremely knowledgeable and friendly. They explained everything I needed to know thoroughly, which is important to me. Their prices are also the best have seen in my area. If you need a Radon Mitigation System, I highly recommend."
House Inspection
Detached garage
Response time2 days
Response rate96%
5 neighbors recently requested a quote
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Avatar for CSI Home Inspections, LLC
CSI Home Inspections, LLC
5.0(
5
)
Radon Gas - Testing

Serving Danville, PA and surrounding areas

In business since 2021

Free estimates

Small jobs welcome

"Shawn was great! Came into my home and helped me answer many of my questions that another company did not which was Green Solutions! Again I am one satisfied customer!!"
Hidden Rot
New roof
Water Damage
Water Damage
Water Damage

+7

Response time3 hrs
Recommended by100%of homeowners
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AAA Radon Experts
New to Angi
Radon Gas - Testing

Serving Danville, PA and surrounding areas

In business since 1993

Free estimates

Credit card accepted

We're a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We specialize in radon gas testing and abatement. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships and guarantee your satisfaction!

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Radon Detection and Reduction questions, answered by experts

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.

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.

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).

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

The soil beneath your house is most likely what’s causing an increased level of radon. This is because soil holds radioactivity for a long time and it’s also what most buildings are built on. Another common source of radon is water from a source that hasn’t been through periodic radon tests, such as well water. Over time, the radon from the soil can inhabit other parts of your house like the foundation or plumbing.

The Danville, 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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