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Best radon detection and reduction specialists near Southport, NC

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

Avatar for Johnson Properties and Inspections, Ltd.
Johnson Properties and Inspections, Ltd.
4.7(
36
)
Radon Gas - Testing

Serving Southport, NC and surrounding areas

Approved

In business since 2005

Free estimates

Offers commercial services

"I have never used a home inspector previously, but I am glad that I hired Johnson Properties and Inspections and stayed with him during the lengthy home inspection. Mr. Johnson is a very thorough and knowledgeable inspector and provided a detailed inspection report with color pictures by email within 24 hours. The radon and water testing results were also quite useful, but took longer to return since the tests have to be sent out. Although not all items had to be addressed before closing, I now have an informed idea of all items relevant to my purchase and a to do list for items that I will need to take care of in the future."
Response time7 hrs
2 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for SWAT Environmental, Inc.
SWAT Environmental, Inc.
4.3(
63
)
Radon Gas - Abatement

Serving Southport, NC and surrounding areas

In business since 2002

Free estimates

Credit card accepted

"I can not recommend this company highly enough. If you have ANY concerns or questions regarding radon give them a call. They will give you an honest assessment and recommendations tailored to your specific situation. Overall a great experience!"
Recommended by89%of homeowners
Smart Air Environmental
4.6(
5
)
Radon Gas - Testing

Serving Southport, NC and surrounding areas

In business since 2000

Small jobs welcome

Credit card accepted

"They explained everything very thoroughly before and during the process. Their testing process seemed very efficient and tested for what we were concerned about. They could have followed up better after the results to explain the results to us. It's been a week I will have to call them."
Response time1 hour
Recommended by100%of homeowners
Avatar for Ritter Home Inspection Services, LLC
Ritter Home Inspection Services, LLC
5.0(
7
)
Radon Gas - Testing

Serving Southport, NC and surrounding areas

In business since 2021

Emergency services offered

Small jobs welcome

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

Home Inspection Service
Home Inspection Service
Home Inspection Service
Home Inspection Service
Home Inspection Service

+2

Response time30 mins
Response rate95%
Recommended by100%of homeowners
Environmental Service Group
New to Angi
Radon Gas - Testing

Serving Southport, NC 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

Radon Detection and Reduction FAQs, answered by experts

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.

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

Mitigation can take several days depending on home setup, equipment accessibility, and achieving effective diffusion system sealed efficiency.

Installation typically takes 1-2 days, depending on the system and property layout.

The average radon mitigation system uses about 876 kWh of electricity per year, although the exact amount of electricity used will vary depending on the size of the radon fan. Once the system is installed, the annual increase to your energy bill could range from $30 to $300 per year, again depending on the size of the fan.

The Southport, NC 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.