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What Causes Radon in Homes?

Radon forms naturally in the soil beneath your home and can enter through small cracks or openings in the foundation. Even homes with no visible damage are at risk, since radon gas moves silently and builds up over time.

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What Causes Radon in Homes?

If you’ve tested your home for radon and found elevated levels, you might be wondering where it came from. Radon is a naturally occurring gas, but when it starts entering your living space, it becomes a serious health concern. At '58 Foundations & Waterproofing, we help homeowners understand how radon gets into a home and what you can do about it.

Radon Comes From the Ground Beneath Your Home

Radon forms naturally when uranium in the soil and rock beneath your home begins to break down. As the gas rises toward the surface, it can enter your home through small gaps in the foundation, even if the structure appears solid. Common entry points include cracks in concrete floors or walls, unsealed areas around pipes or sump pump pits, open crawl space vents, and joints between foundation materials.

Since radon is completely invisible and odorless, most homeowners don’t realize there’s a problem until a test reveals high levels inside. The gas builds up silently, often starting in the lowest parts of the home, such as basements or crawl spaces, and can reach unsafe concentrations without any obvious warning signs.

Why Your Home Might Have a Radon Problem

Several conditions can cause radon gas to build up inside a home:

  • Negative air pressure: As warm air rises and escapes, it creates suction that pulls radon in from below. This is known as the stack effect.
  • Poor ventilation: Homes with tightly sealed windows and doors may trap radon inside.
  • Foundation type: Homes with basements or crawl spaces are more vulnerable to radon entry due to increased soil contact.

These causes don’t reflect poor maintenance—they’re often the result of natural environmental conditions and structural design.

How We Help Fix the Problem

The good news is, radon can be controlled. At '58 Foundations & Waterproofing, we design radon mitigation systems that safely vent gas away from the home before it can accumulate. Whether your home has a basement, slab foundation, or crawl space, our Certified Radon Specialists will create a system tailored to your structure and soil conditions.

We’ve helped thousands of homeowners reduce radon levels quickly and reliably—and we back our work with a Life-of-the-Structure Warranty.

Talk to one of our Licensed Radon Mitigation Contractors Today

Radon doesn’t have to be a permanent problem. If you're concerned about the radon levels in your home, or you’re preparing to sell and want to ensure safety for future buyers, contact '58 Foundations & Waterproofing today.

We’ll connect you with our local radon mitigation specialist who can provide expert recommendations and proven solutions to protect your home and your health.

Trust the Experts

Anyone can say they can fix it, only ’58 Foundations & Waterproofing guarantees it!

Foundation issues are very serious and only get more dangerous and costly with time. Our guaranteed solutions help you avoid major structural repairs and protect your home’s value. If you suspect foundation problems, don't wait.

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