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Best radon detection and reduction specialists near Lancaster, PA

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

Avatar for C&S Home Inspections
C&S Home Inspections
4.8(
60
)
Radon Gas - AbatementRadon Gas - Testing

Serving Lancaster, 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
Avatar for AmeriSure Home Inspection, LLC
AmeriSure Home Inspection, LLC
4.6(
31
)
Radon Gas - Testing

Serving Lancaster, PA and surrounding areas

Approved

In business since 2016

Free estimates

Credit card accepted

"Tom was in a word: Phenomenal. I scheduled an Inspection and Radon Test on HomeAdvisor. Tom reached out within minutes of my scheduling the appointment. He was extremely thorough yet timely and gave simple suggestions. The last thing he sought to do was to nickel and dime us- we truly appreciated that. He was very personable and kind. His prices we the best in the area (we shopped around) and the quality of his work speaks for itself. We've favorited him and will be giving him a ring for our next home."
Home Inspection
Home Inspection
Home Inspection
Home Inspection
Response time6 hrs
34 neighbors recently requested a quote
Recommended by74%of homeowners
Avatar for SIS Mold & Home Inspections
SIS Mold & Home Inspections
5.0(
2
)
Radon Gas - Testing

Serving Lancaster, PA and surrounding areas

Approved

In business since 2015

Free estimates

Credit card accepted

"I have worked with SIS on numerous occasions as I completely trust them with my testing needs (mold & radon). They are responsive and knowledgeable, having extensive training and experience. Bob and Mary Ann are professional and courteous while providing a competitive price for their services. I highly recommend SIS for mold and radon testing!"
Toxic Mold
Mold under rug at bathroom
Subfloor and joist
Basement Closet
Bedroom Closet

+3

Response time4 hrs
Recommended by100%of homeowners
Avatar for Radon Protection Services of Gettysburg, Inc.
Radon Protection Services of Gettysburg, Inc.
4.5(
17
)
Radon Gas - AbatementRadon Gas - Testing

Serving Lancaster, PA and surrounding areas

In business since 1988

Free estimates

Small jobs welcome

"Bob and his crew did a great job. From dealing with the office staff from the first call all the way until job completion I was impressed with the service. Not only that he had the best quoted price as well and while this may not seem like a big deal there were a few factors that made this impressive. First he was coming from further away than any other company, a lot further, over an hour away. Next he quoted the job site unseen and found that a portion of the work he quoted was already done when he arrived onsite so after the lab test came back showing everything within acceptable ranges he surprised me with a refund for that portion of the job that he didn't have to perform."
Response time1 day
Recommended by100%of homeowners
Helping Solutions, LLC
4.8(
5
)
Radon Gas - AbatementRadon Gas - Testing

Serving Lancaster, PA and surrounding areas

In business since 2009

Free estimates

Credit card accepted

"If you’re looking to get any type of inspection or home services then look no further. I recently became a customer of Justin Ake after trying to get my soon to be home inspected. Rick was dispatched to the property and went above and beyond, both explaining the inspection process and showing me key points in the houses plumping and drainage systems. As well as providing information on other tests and services the company performs. I don’t normally write reviews, but I have to say this is one business that takes pride in their trade."
Recommended by100%of homeowners
Avatar for Flood Crew LLC
Flood Crew LLC
4.6(
40
)
Radon Gas - AbatementRadon Gas - Testing

Serving Lancaster, 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 FAQs, answered by experts

There are steps you can take as a homeowner to remediate radon yourself. While a radon reduction professional can make the biggest impact in your home, you can make efforts to improve radon levels on your own by sealing cracks, increasing ventilation, and testing for radon regularly.

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

No level of radon is technically safe, but since it is naturally present everywhere, it is impossible to avoid entirely. 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 action to reduce radon levels if your home's test results are between 2 and 4 pCi/L or higher.

If your home has a sump pit, you can integrate it with a radon mitigation system. You can accomplish this by sealing the pump cover with an airtight lid that accommodates radon vent pipes and sump pump hoses. This allows the vent pipe to redirect the radon gas outside of your home.

While DIY testing is possible, abatement generally requires professional installation to ensure efficacy and meet safety standards.

The Lancaster, 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.