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

Radaquest Radon Inspectors
5.0(
4
)
Radon Gas - Testing

Serving Calumet Park, IL and surrounding areas

In business since 2008

Free estimates

Credit card accepted

"Very easy to get an appointment on short notice when I had limited time to get a radon test done in the process of purchasing a home. Their price was also slightly lower than an estimate I'd received from another company, and the technician was more thorough about explaining the process than the other company I considered."
Response time5 hrs
Response rate87%
Recommended by100%of homeowners
Avatar for Reliable Basement Services LLC
Reliable Basement Services LLC
4.7(
208
)
Radon Gas - AbatementRadon Gas - Testing

Serving Calumet Park, IL and surrounding areas

In business since 2008

Free estimates

Credit card accepted

"The estimator examined the basement walls and identified four cracks through which water might be coming in and gave a quote.  We agreed to have the work done.  One service man came and filled the cracks in less than the estimated time.  The work involved surface patching the cracks on the inside of the wall, drilling approximately six holes through each crack and injecting a sealant into each crack.  Since we haven't had a hard rain since then, we haven't had a real test of whether it holds water out.
"
Additional Photos
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+6

Recommended by95%of homeowners
Avatar for High Tech Waterproofing LLC
High Tech Waterproofing LLC
4.7(
63
)
Radon Gas - AbatementRadon Gas - Testing

Serving Calumet Park, IL and surrounding areas

In business since 2013

Free estimates

Credit card accepted

"Chuck asked all the right questions before giving a quote and gave us multiple options to address the problem leaks. His serviceman, Josh, was courteous and professional, clean and efficient. They filled two basement cracks with the injection sealant and we are pleased with the results. I would use them again.
"
crack repair
crack repair
BEFORE
AFTER
Crawlspace Storage

+1

Recommended by100%of homeowners
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Radon Detection and Reduction FAQs, answered by experts

The soil beneath your house is most likely what’s causing an increased level of radon. This is because soil holds radioactivity for a long time and it’s also what most buildings are built on. Another common source of radon is water from a source that hasn’t been through periodic radon tests, such as well water. Over time, the radon from the soil can inhabit other parts of your house like the foundation or plumbing.

No level of radon is technically safe, but since it is present everywhere, complete avoidance is impossible. 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 preventative measures if your home's radon levels are between 2 and 4 pCi/L or higher.

The lifespan of a radon mitigation system depends on the type of system and its maintenance. With proper care, a system can last for many decades. Passive systems tend to last longer as they have fewer components that require replacement. Active systems, which have more moving parts like fans, generally have a shorter lifespan. For instance, water filtration devices and active pressurization systems require more frequent maintenance. While the system as a whole is durable, the radon fan in an active system typically has a lifespan of 5 to 10 years and will need to be replaced. As long as the fan is working, the mitigation system should function correctly.

Radon is a cancer-causing radioactive gas that poses serious health risks, infiltrating homes through foundation cracks and unnoticed spaces.

Options include sub-slab depressurization, crawlspace ventilation, and sealing cracks. Choose based on home construction and radon levels.

The Calumet Park, IL 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.