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Best radon detection and reduction specialists near Marion, NC

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

Avatar for All American Environmental Services, LLC
All American Environmental Services, LLC
5.0(
199
)
Radon Gas - Abatement

Serving Marion, NC and surrounding areas

Approved

Super Service Award Winner

In business since 2020

Free estimates

Emergency services offered

"Alan is very professional and answered all of my questions and was quick to get me on the schedule. He completed the work in less than 3 hours and my digital radon detector indicates the radon levels have dropped to within a normal range. I wouldnâ t hesitate to recommend him to anyone concerned about radon levels in their home."
Radon Mitigation System
Radon Mitigation System
Radon Mitigation System
Radon Mitigation System
Radon Mitigation System

+4

Response time7 hrs
81 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for Avert Radon LLC
Avert Radon LLC
5.0(
5
)
Radon Gas - AbatementRadon Gas - Testing

Serving Marion, NC and surrounding areas

Approved

In business since 2023

Free estimates

Credit card accepted

"Avert Radon LLC , specifically Chance, recently completed radon mitigation work at my residence, installing two systems. I typically refrain from writing reviews, but felt compelled to share my experience with Avert Radon LLC . I'm extremely satisfied with the results, as the radon levels are now virtually undetectable. Chance demonstrated exceptional professionalism throughout the process. The communication was excellent, and their meticulous attention to detail was also outstanding. Furthermore, their post-installation follow-up has been consistently excellent. I highly recommend this company without reservation. They are among the best service providers I've encountered. if I could give it more than five stars, I certainly would!"
Mitigation Install
Mitigation Install
Radon Mitigation
Radon Measurement
7 neighbors recently requested a quote
Avatar for Outlook Home Inspections, LLC
Outlook Home Inspections, LLC
5.0(
25
)
Radon Gas - Testing

Serving Marion, NC and surrounding areas

Approved

In business since 2016

Free estimates

Customers say: Quality work

"Inspection was very professional, Jonathan is a great person, ready to answer any of your questions and give you a pro advice what and when you should expect with the property you're buying. I was really happy that he agreed to perform inspection on Saturday, so i didn't lose any of my working hours at my job. And pricing..it's more than reasonable for the service quality we received. 100% recommended. Thank you, Jonathan!"
Checking the lights and soffits
Water pressure
Toilets
Air handler
Crawlspace Action

+9

Response time3 hrs
Recommended by100%of homeowners
Avatar for Benchmark Home Inspections
Benchmark Home Inspections
5.0(
114
)
Radon Gas - Testing

Serving Marion, NC and surrounding areas

In business since 2017

Free estimates

"Mark Pierce was very helpful and thorough. We are moving from TX to NC and could not be there for the inspection but Mark called and went over everything he found concerning with us. We used them for the home inspection, water test and radon test and were very happy with their service."
HVAC Inspection
Roof Inspection
Chimney Inspection
Drainage Inspection
Electrical Inspection

+15

Response time5 hrs
Response rate86%
Recommended by98%of homeowners
Avatar for SWAT Environmental, Inc.
SWAT Environmental, Inc.
4.3(
63
)
Radon Gas - Abatement

Serving Marion, 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
Showing 1-10 of 24
Radon Detection and Reduction FAQs, answered by experts

Abatement includes sealing entry points and venting with systems that reduce radon levels below recommended EPA limits. It is handled by certified professionals.

Radon enters your home when warm air begins to rise and exits through the roof, creating a vacuum that pulls cooler air from under the foundation. Part of that air is radon, which is an invisible, odorless gas that develops naturally when radioactive particles are deep within the ground. Those particles usually come from decaying matter in soil and rocks.

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

Radon is present almost everywhere but, like sunlight, the concentration levels and how often you are exposed to it have a large part to play in just how dangerous it is. There are levels of radon that are acceptable inside a house, but above a certain limit, radon becomes a serious radioactive hazard that is a known cause of lung cancer. In fact, radon exposure is the number two leading cause of lung cancer (after smoking).

Use a radon test kit or hire professionals to conduct a detailed assessment of radon levels in your home.

The Marion, 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.