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

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

Serving Calhoun Falls, 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
Avatar for Coastal Empire Roofing & Construction Co
Coastal Empire Roofing & Construction Co
3.1(
16
)
Radon Gas - AbatementRadon Gas - Testing

Serving Calhoun Falls, SC and surrounding areas

In business since 1998

Free estimates

Emergency services offered

"I had a sunroom that a previous contractor had built, but that contractor had very shoddy work. The room was a nightmare. Other contractors wouldn't touch it, but Coastal Empire made it look wonderful! The workmen were very polite, tidy, and did a great job! I am very pleased with the work they did. I now have a beautiful sunroom that I can actually use!"
Pantarah Sunroom Series
Recommended by80%of homeowners
Radon Detection and Reduction FAQs, answered by experts

If your home has a sump pit, you can integrate it with a radon mitigation system. You can accomplish this by sealing the pump cover with an airtight lid that accommodates radon vent pipes and sump pump hoses. This allows the vent pipe to redirect the radon gas outside of your home.

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

You can vent radon out of your house sometimes by simply opening a window, but it won’t remove the source, and will likely rise above recommended levels quickly. A professional will be needed to assess your home, and determine the best strategy for radon removal. Active radon sump pumps and soil depressurization systems are often used to forcefully vent the radon from your home.

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.

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 Calhoun Falls, 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.