Top-rated radon detection and reduction specialists.

Get matched with top radon detection and reduction specialists in Johnsonville, SC

Enter your zip and get matched with up to 5 pros

Need a pro for your radon detection and reduction project in Johnsonville, SC?

Select your specific project to find the pro for you.

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

*The Angi rating for Radon Detection And Reduction companies in Johnsonville, 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 Johnsonville, 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 June 10, 2026

Find Radon detection and reduction specialists in Johnsonville

Avatar for SWAT Environmental, Inc.
SWAT Environmental, Inc.
4.8(
10
)
Radon Gas - Abatement

Serving Johnsonville, 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
Request Quote
Avatar for Summit Engineering, Laboratory & Testing, P.C
Summit Engineering, Laboratory & Testing, P.C
4.0(
7
)
Radon Gas - Testing

Serving Johnsonville, SC and surrounding areas

In business since 2003

Emergency services offered

Credit card accepted

"Did what they said they would, very knowledgeable and great job over all"
Response time1 day
Response rate90%
Recommended by100%of homeowners
Request Quote
Environmental Service Group
New to Angi
Radon Gas - Testing

Serving Johnsonville, 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

Request Quote
Radon Detection and Reduction questions, answered by experts

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.

If high radon levels are detected, steps include sealing entry points, installing a mitigation system, and retesting the air regularly to ensure reduced levels.

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

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.

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.

The Johnsonville, 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.

See all articles