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*The Angi rating for Radon Detection And Reduction companies in Chambersburg, 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 Chambersburg, 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 June 13, 2026

Find Radon detection and reduction specialists in Chambersburg

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

Serving Chambersburg, 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%
1 neighbors recently requested a quote
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Avatar for Radon Protection Services of Gettysburg
Radon Protection Services of Gettysburg
4.6(
22
)
Radon Gas - Abatement

Serving Chambersburg, PA and surrounding areas

In business since 1988

Free estimates

Small jobs welcome

"In and out in one day. Radon levels are where they need to be. Work looks great. Very professional job."
Response time11 hrs
Recommended by100%of homeowners
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Avatar for MCJ Home Inspection, LLC
MCJ Home Inspection, LLC
4.9(
35
)
Radon Gas - Testing

Serving Chambersburg, PA and surrounding areas

In business since 2020

Free estimates

Emergency services offered

"Our inspector was Alan and he was, in a word, excellent. He truly went above and beyond. We highly recommend MCJ in general and Alan in particular."
Response time5 hrs
Response rate100%
Recommended by89%of homeowners
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Avatar for Flood Crew LLC
Flood Crew LLC
4.6(
40
)
Radon Gas - AbatementRadon Gas - Testing

Serving Chambersburg, PA and surrounding areas

In business since 2008

Free estimates

Emergency services offered

"I had a pipe burst in the basement of our rental property, Flood Crew was referred by our realtor. They arrived quickly after the pipe was fixed by our plumber, demoed, and dried out the areas, even handled packing out our furniture and placing carefully in a pod storage while the work was being done. They did mold testing and made sure everything was safe, the best part was that they dealt with the insurance and we didn’t have to do anything."
After carpets were cleaned.
Before and after of Medallion
After color sealed
Apartment carpet cleaning
Drying bathroom wood subfloor from kitchen using indirect control heat, controlled by thermostat we set in place

+57

Recommended by88%of homeowners
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Radon Detection and Reduction questions, 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 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.

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 natural breakdown of uranium in soil, rock, and water can cause radon to appear in a home. The gas seeps into homes through cracks in foundations, walls, or floors, as well as through gaps around pipes or construction joints. Radon levels are influenced by soil composition, building materials, and ventilation. Poorly sealed or airtight homes can trap radon, allowing it to accumulate.

Mitigation reduces radon levels, protecting your health and complying with safety standards.

The Chambersburg, 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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