Radon mitigation is a system that helps reduce dangerous radon concentrations in the home. Through these systems, we can strive towards creating healthy interior spaces with an indoor level of this radioactive gas as low as possible - safely and responsibly. A radon mitigation system works to protect your home by drawing air from the soil and venting it outside through a pipe that extends above the roofline. Seals are placed around cracks and openings in foundations, ensuring no harmful substances can enter inside.

Signs your radon levels may be too high include:

• Test result above 4 pCi/L (EPA action level)

• Cracks in floors or foundations

• Poor ventilation or tightly sealed home

• Granite or uranium-rich soil nearby

• Long-term cough or breathing issues (from prolonged exposure)

In short: You can’t see or smell radon, but it seeps up from the ground and builds up indoors, especially in lower, poorly ventilated areas. The only sure way to know is to test your home with a radon kit or professional service.

We guarantee our radon systems for the life of the workmanship.

Radon fans are warranted by the manufacturer. We use premier radon fans, typically lasting 8-10 years on exterior systems and 10-15 years on interior systems. We can easily replace fans with our fan replacement services.

Because we install high-quality mitigation systems, you’ll typically notice a significant reduction in radon levels within the first 24 hours after installation. These systems start pulling radon gas from beneath your foundation and venting it safely outdoors almost immediately.

However, it’s best to allow the system to run continuously for about one week to see the full effect and ensure that the levels have stabilized throughout your home. After this period, a follow-up radon test should be performed to confirm that the system is effectively keeping radon levels well below the EPA’s recommended limit of 4 pCi/L.

Regular testing, usually every two years, is also advised to ensure ongoing protection and proper system performance.

Of course! Give us a call. With our 20+ years of radon experience, our Wisconsin-friendly certified techs are glad to answer any questions you may have.

On average, residential radon mitigation systems cost between $900 and $1,600, though the exact price depends on several factors. The size and layout of your home, the foundation type (basement, crawlspace, or slab-on-grade), and the initial radon levels all play a role in determining the final cost.

Homes with simple layouts and accessible foundations generally fall on the lower end of the range, while larger homes or those requiring more complex piping or multiple suction points may cost more. Additional expenses can include electrical work, sealing cracks, or upgrading ventilation.

While this may seem like an investment, installing a radon mitigation system offers long-term peace of mind, protecting your family’s health and often increasing your home’s resale value, as many buyers now request proof of low radon levels before purchase.

In most areas, radon testing isn’t legally required before selling a home...but it’s highly recommended. Many buyers now request a recent radon test as part of the home inspection process, and some states or local governments have specific disclosure laws requiring sellers to share any known radon test results.

Even when it’s not mandatory, testing before listing your home can be a smart move. It allows you to address any radon issues in advance, avoid surprises during the sale, and give buyers confidence that the home is safe. If elevated levels are found (above 4 pCi/L, per EPA guidelines), installing a mitigation system is usually a straightforward fix that can make your home more appealing and market-ready.

It’s recommended to test your home for radon every two years to ensure levels remain safe. Even if your previous results were low, radon levels can change over time due to factors like foundation settling, new cracks, renovations, or changes in ventilation.

You should also retest if:

• You’ve installed or repaired a mitigation system

• You’ve made major structural changes (like finishing a basement or adding insulation)

• You’ve moved into a new home or the property’s use has changed (e.g., turning a basement into a living area)

Regular testing is the best way to maintain confidence that your radon levels stay below the EPA’s recommended limit of 4 pCi/L and your home remains safe for you and your family.