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Q: Why is my radon mitigation system so loud?

• <div><p>Your radon mitigation system may be loud because it&rsquo;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.</p></div>

Q: What would cause radon in a house?

• <div><p>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.</p></div>

Q: How much does it cost to replace a radon fan?

• <div><p>The cost to replace a radon fan ranges from $300 to $600 for the fan itself, with installation adding an additional $200 to $500. Overall, the total cost for replacement can range from $500 to $1,100, depending on factors such as the fan model, home size, and local labor rates. If the fan is part of a larger radon mitigation system, the price may be higher.</p></div>

Q: What is the biggest source of radon?

• <div><p>The soil beneath your house is most likely what&rsquo;s causing an increased level of radon. This is because soil holds radioactivity for a long time and it&rsquo;s also what most buildings are built on. Another common source of radon is water from a source that hasn&rsquo;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.</p></div>

Q: What steps should be taken if high radon levels are detected?

• <div><p>If high radon levels are detected, steps include sealing entry points, installing a mitigation system, and retesting the air regularly to ensure reduced levels.</p></div>

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Verified Reviews for Radon Detection And Reduction pros in Flemington, PA

*The Angi rating for Radon Detection And Reduction companies in Flemington, 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 Flemington, 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 April 14, 2026

Reviewed in April 2026
Our project included repair work and applying paint to all walls and ceilings of our home. Once the project began, Tommy was efficient and flexible, completing our entire interior in just a couple of weeks. His attention to detail was thorough and it looks great!
Thomas Noviello Painting
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Reviewed in October 2025
Randy and his guys came out and went above and beyond for my metal roof. I’m quite a distance away from their home base, and there was no hesitation whatsoever to accommodate me.. if you have the ability to watch these gentlemen work, or even just listen… you’ll quickly understand it’s not just...
Shade Mountain Construction of PA, LLC
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Reviewed in August 2025
Fast, efficient, goes above and beyond to help!
HH Building Solutions LLC
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Reviewed in April 2025
I actually had Remington do some other work for me besides tree removal. He is very professional and detail-oriented and I was very happy with the price.
Walters Tree Care
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Reviewed in March 2025
Advanced Junk Removal did an excellent job cleaning out two storage units for our company. Very professional and quick communications setting up the job. We were super pleased and would absolutely hire them again.
Advantage Junk Removal
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Reviewed in March 2024
Kolton with AMX lawn and landscaping was very professional and did an outstanding job on our yard. You can tell he takes pride in his work. I highly recommend using them and will be setting up a weekly service.
AMX Lawn & Landscape LLC
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Reviewed in September 2023
Bulldawg Plumbing, LLC is by far the greatest plumbing company I've hired. They are skilled, knowledgeable, professional, and personable. I will hire them again, and I highly recommend.
Bulldawg Plumbing, LLC
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Reviewed in August 2023
Ervin installed our fence in February of last year. We had rescued a 10 month old pup at the time and decided that we needed to turn our acre back yard into his space to roam. We reached out via the website and shortly after Ervin contacted us directly asking questions about what we were looking...
Dog Guard of Central PA, LLC
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Reviewed in July 2023
I first contacted Snapper Plumbing around Christmas last year. I had a blocked line and I put draining into the pipes and it was clear. Kieth came out because I asked him to be sure. He arrived and checked things out and did not charge me a cent. I called him last week and the line was plugged...
Snapper Plumbing Service, LLC
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Reviewed in July 2023
He did everything perfectly. He was very flexible with scheduling and efficient. Super nice to work with! Not only did he take all the stumps I saw out, he found more and removed those as well! After he was done, he loaded the stumps in his truck and hauled them away so I didn’t have to worry...
JRs Tree Service LLC.
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Find Radon detection and reduction specialists in Flemington

C&S Home Inspections

4.8(

)

Serving Flemington, 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."

Response time2 days

Response rate87%

4 neighbors recently requested a quote

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Radon Detection and Reduction questions, 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 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.

The cost to replace a radon fan ranges from $300 to $600 for the fan itself, with installation adding an additional $200 to $500. Overall, the total cost for replacement can range from $500 to $1,100, depending on factors such as the fan model, home size, and local labor rates. If the fan is part of a larger radon mitigation system, the price may be higher.

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.

If high radon levels are detected, steps include sealing entry points, installing a mitigation system, and retesting the air regularly to ensure reduced levels.

The Flemington, 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.

See all articles

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Apr 6, 2026Apr 6, 2026
How Much Does Radon Remediation Cost? [2026 Data]
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Mar 18, 2026Mar 18, 2026
How Much Does a Radon Mitigation System Cost? [2026 Data]
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Mar 18, 2026Mar 18, 2026
How Much Does Radon Testing Cost? [2026 Data]
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Apr 5, 2026Apr 5, 2026
How to Install a Radon Mitigation System
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Apr 8, 2026Apr 8, 2026
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