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Verified Reviews for Radon Detection And Reduction pros in Marion, SC

*The Angi rating for Radon Detection And Reduction companies in Marion, SC 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 Marion, SC 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 May 25, 2026

Find Radon detection and reduction specialists in Marion

Avatar for All American Environmental Services, LLC
All American Environmental Services, LLC
5.0(
195
)

Serving Marion, SC and surrounding areas

Approved

Super Service Award Winner

In business since 2020

Free estimates

Emergency services offered

"Alan was excellent. He explained everything about Radon and the Radon system we needed. He took the time to map out the best place to install our Radon system. We really appreciated his knowledge of Radon and the radon system. Alan will be our permanent Radon person. I highly recommend Alan and his company, you will not be disappointed !!!!!!!"
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 by93%of homeowners
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Avatar for SWAT Environmental, Inc.
SWAT Environmental, Inc.
4.8(
10
)

Serving Marion, 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
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Avatar for Summit Engineering, Laboratory & Testing, P.C
Summit Engineering, Laboratory & Testing, P.C
4.0(
7
)

Serving Marion, SC and surrounding areas

In business since 2003

Emergency services offered

Credit card accepted

With years of experience serving the area, we are your solution for all your environmental contracting, engineering, testing and oversight needs. We take great pride in our extreme professionalism, timeliness and superior customer service on every job. We make sure to develop a lasting relationship, so that the next time service is needed there will be no question who to call. Call us today, so we can discuss your needs and make a plan that fits your budget. Satisfaction guaranteed!

Response time1 day
Response rate90%
Recommended by100%of homeowners
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Radon Detection and Reduction questions, answered by experts

Your radon fan needs to operate 24/7 to be effective. The only time the fan isn't operating is during its replacement. Radon levels in the home can increase within hours if the fan stops working or something obstructs the stack vent. Fortunately, radon systems require no downtime maintenance between fan changes.

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.

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.

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

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.

The Marion, 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.

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