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Best radon detection and reduction specialists near Charleston, SC

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

Avatar for Coastal Inspection
Coastal Inspection
5.0(
25
)
Radon Gas - Testing

Serving Charleston, SC and surrounding areas

Approved

In business since 2018

Free estimates

Credit card accepted

"I plan on using him for other projects, great communication skills, I'm a realtor so his response time was exceptional, report was impressive and my clients were even impressed with him."
Attic Inspection
Response time40 mins
Recommended by100%of homeowners
Avatar for Integrity Home Inspection Services Group, LLC
Integrity Home Inspection Services Group, LLC
4.9(
72
)
Radon Gas - Testing

Serving Charleston, SC and surrounding areas

Approved

In business since 2014

Free estimates

Credit card accepted

"We hired Alan to perform a Radon test for us in our new home. Alan was very professional. He was responsive and flexible with his schedule to meet our needs. He was a pleasure to work with. We will be using him again for any additional services we require (home inspections, etc...)"
Crawlspace Inspection
Response time2 hrs
Response rate93%
1 neighbors recently requested a quote
Avatar for SWAT Environmental, Inc.
SWAT Environmental, Inc.
4.8(
10
)
Radon Gas - Abatement

Serving Charleston, SC and surrounding areas

In business since 2002

Free estimates

Credit card accepted

"Had them come out to install a Radon Mitigation Fan. Service was fast and the installer was extremely knowledgable. He was in an out within an hour and the radon dropped from a 4 to a 0.59! Extremely happy with the result. Price wasn't cheap by any means but definitely fixed our problem."
Recommended by100%of homeowners
Global Restoration Services, Inc.
4.8(
21
)
Radon Gas - Testing

Serving Charleston, SC and surrounding areas

Free estimates

Emergency services offered

Warranties offered

"I had a very bad mold situation in my attic and roof due to a roofer that closed vents in my vents 3 yrs ago. This created a very very bad mold situation. Well they came in and removed the mold did a bag up job restored my wood back to the original wood color. Thank you"
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+24

Response time2 days
Response rate100%
Recommended by100%of homeowners
Environmental Service Group
New to Angi
Radon Gas - Testing

Serving Charleston, SC and surrounding areas

In business since 2010

Free estimates

Credit card accepted

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! We are family owned and operated, so please let us know how our family can take care of yours! \n \n

Avatar for Sabal Home Inspections
Sabal Home Inspections
New to Angi
Radon Gas - Testing

Serving Charleston, SC and surrounding areas

In business since 2024

Free estimates

Warranties offered

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job. \n \n \n

Response time2 days
B.K.S.S. Construction
New to Angi
Radon Gas - AbatementRadon Gas - Testing

Serving Charleston, SC and surrounding areas

In business since 2021

Free estimates

Emergency services offered

B.K.S.S. Construction is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers interests, and make their concerns the basis of our business.

Response time4 hrs
Radon Detection and Reduction FAQs, answered by experts

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

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.

A homeowner can install a radon mitigation system on their own. But it’s a challenging DIY that requires a lot of knowledge about radon mitigation as well as familiarity with local regulations. You do not want to risk an improper installation that leaves the system unable to detect radon or gives it a shortened life span. Relying on a professional is the surest way to guarantee a successful installation.

The fan that pulls the radon out of the air needs to run continuously, so you may see an increase in your electric bill once you install the mitigation system. Additionally, you may see an increase in your heating or cooling bills, as the fan can cause some loss of hot or cool air.

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 Charleston, SC 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.