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Q: What level of radon is considered safe or dangerous?

• <div><p>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.</p></div>

Q: What are the health risks associated with radon exposure in homes?

• <div><p>Long-term exposure increases lung cancer risks. Prolonged homestay individuals and smokers encounter heightened vulnerability and exposure concerns.</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: 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: How much does a radon mitigation system cost?

• <div><p>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.</p></div>

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Verified Reviews for Radon Detection And Reduction pros in Darien, GA

*The Angi rating for Radon Detection And Reduction companies in Darien, GA 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 Darien, GA 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 October 28, 2025

Reviewed in October 2025
Brian and his team did a fantastic job with removing the algae and dirt from the sides of our house and even went above and beyond and cleaned other areas not originally included. Thank you Cover and Candor LLC for the professional job for us and we highly recommend using them for your property.
Cover And Candor LLC
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Reviewed in June 2024
The guys of Junk Removal BWK were super friendly and hardworking! They worked quickly and efficiently to remove everything that we needed gone. I could not recommend them enough
Junk Removal BWK
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Reviewed in May 2023
Very responsive, polite, and knowledgeable people came in and diagnosed and fixed the problem when I had others look at it and could not figure it out.
Atlas HVAC
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Reviewed in April 2023
Ascending Tree Service provided excellent tree service. They carefully took down trees over the house and garage. They ground roots and stumps and pulled vines. They cleaned up and left things looking even better than when they arrived. My property looks fantastic! They were prompt and...
Ascending Tree Service
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Reviewed in September 2022
Very quick and efficient. The installer was there on time worked quickly and gave us a great water treatment system. Thanks again. The seller was very helpful and gave os every discount possible.
Home Owner's Water Solutions Inc.
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Reviewed in February 2022
It went great. The doctor came in, talk a little bit and gave 2 shots for my cat. He has very nice manner with me and the animals.
Golden Isles Animal Hospital
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Reviewed in September 2021
Abel and his crew did a Fall cleanup of my front and back yard yesterday. They were thorough and paid attention to my requests with regard to trimming. Their pricing was competitive, but reasonable for the work being done. I canâ t wait for them to come back and maintain the lawn every two...
Santos Landscaping and Lawncare Services
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Reviewed in June 2021
This company was quick, efficient, and did a great job. They cleaned up all branches, leaves, and debris. I will definitely hire them again!
Big Jon's Tree Service
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Reviewed in April 2021
Robert addressed both problems quickly and efficiently. Excellent value and pleasant experience.
Richards Drain Cleaning Service
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Find Radon detection and reduction specialists in Darien

Elite inspections of GA

5.0(

)

Serving Darien, GA and surrounding areas

In business since 2014

Free estimates

Emergency services offered

"We used Elite for radon testing and it was positive and we put in radon system. We also used them when we purchased a new home to inspect and to test for radon. Radon was in normal range in new home. I don't remember exact prices for each test but was fair as was installation of radon system. Very thorough job and extremely professional."

Recommended by100%of homeowners

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Preferred Home & Property Inspections

4.9(

)

Serving Darien, GA and surrounding areas

In business since 2013

Free estimates

Credit card accepted

"Mr. Beasley did exemplary work. He was very professional, very detailed, and did a great job evaluating and explaining his findings. He answered all calls and emails immediately or promptly. I will use him again."

Recommended by100%of homeowners

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Cube Home & Commercial Inspections & Appraisal Svs

5.0(

)

Serving Darien, GA and surrounding areas

In business since 2009

Free estimates

Emergency services offered

"The inspection was complete and informative.... Issues we discoved I was able to settle with the seller before I completed the puchase."

Recommended by100%of homeowners

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Hegi Professional Services

New to Angi

Serving Darien, GA and surrounding areas

In business since 2019

Free estimates

Offers commercial services

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! Book with us online or feel free to give us a call today!

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Home Inspections Coach, LLC

New to Angi

Serving Darien, GA and surrounding areas

In business since 2022

Free estimates

Credit card accepted

With years in the industry here at Home Inspections Coach LLC, we pride our company on professionalism, punctuality, reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project with sensitivity and compassion. We emphasize old school respect and satisfaction for our customers, who we choose to call family. Our prices and attention to detail is that of no other. We encourage independent education to our customers so they can be on the lookout for potential dangers. We look forward to earning your business. Give us a call today!

Response time6 hrs

Response rate94%

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Coastal Empire Roofing & Construction Co

3.1(

)

Serving Darien, GA and surrounding areas

In business since 1998

Free estimates

Emergency services offered

"They did a wonderful job on my sunroom. A previous contractor did a VERY poor job - the sunroom was a disaster. But Coastal Empire made it BEAUTIFUL!! I was very happy with the results. The workers were very nice, and always cleaned up after their work."

Recommended by80%of homeowners

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Radon Detection and Reduction questions, answered by experts

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.

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

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 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 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.

The Darien, GA 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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