Lower Radon Levels in Your Home Permanently

Custom mitigation systems for single-family homes and townhomes in Northeast, WI.

If testing shows elevated radon levels in your home, a professionally installed mitigation system pulls radon gas from beneath your foundation and vents it safely outside before it can accumulate in your living spaces. Radon comes from the natural decay of uranium in soil and enters through cracks, sump pits, and gaps around utility penetrations. Without mitigation, radon builds up over time, especially in basements and lower levels where air pressure differences allow soil gas to seep indoors.

Radon Safe Homes and Businesses designs and installs active soil depressurization systems tailored to your foundation type, whether you have a basement, slab, or crawl space. The system includes a vent pipe installed through the foundation, a fan that creates suction beneath the slab or around the perimeter, and routing that keeps the exhaust point away from windows and air intakes. After installation, post-mitigation testing confirms that radon levels have dropped below the EPA action level. The work is planned for discreet system placement and long-term performance, with clear explanations of how the system functions and what you should monitor over time.

If you are ready to address radon in your Northeast WI home, request a free residential mitigation estimate from Radon Safe Homes and Businesses.

How the Mitigation System Works in Your Home

Installation typically begins with drilling a small suction pit through the basement floor or slab, then inserting a PVC pipe that extends from the sub-slab area up through the home and out through the roof or an exterior wall. A radon fan is mounted in the attic or on an exterior wall, and the system runs continuously to maintain negative pressure beneath the foundation. The fan draws radon-laden air from the soil and exhausts it above the roofline, where it disperses harmlessly into the atmosphere.

After the system is installed and operational, you will notice a small PVC pipe running vertically along an interior or exterior wall, and you may hear a faint hum from the fan if it is located in a finished space. Post-installation testing is conducted after the system has run for at least 24 hours, and results typically show radon levels dropping to below 2.0 picocuries per liter.

The system requires minimal maintenance, but you should check the fan indicator light monthly to confirm the unit is running. The installation does not require major structural changes, but it does involve drilling through the slab and routing piping through living areas or along the exterior. The service does not include repairs to foundation cracks or waterproofing, though sealing major gaps can improve system performance if needed.

Most Homeowners Ask These Questions Before Moving Forward

Homeowners often want to know how long installation takes, what the system looks like once it is in place, and what kind of results they can expect after the work is finished.

How long does residential radon mitigation installation take?
Most residential installations take four to six hours, depending on the size of your home and the complexity of the foundation. You can remain in the home during the work, and the system is operational as soon as the fan is turned on.
What will the mitigation system look like in my home?
You will see a white or gray PVC pipe running vertically from the basement floor or crawl space up through the home and exiting through the roof or an exterior wall. The fan is typically mounted in the attic or on an outside wall, and a small pressure gauge or indicator light is installed to monitor system function.
How much will my radon levels drop after mitigation?
Most systems reduce radon levels to below 2.0 picocuries per liter, well under the EPA action level of 4.0. Post-mitigation testing is performed after installation to confirm the system is working as designed.
What kind of maintenance does the system need?
You should check the fan indicator light or pressure gauge monthly to confirm the fan is running. The fan itself typically lasts 10 to 15 years before it needs replacement, and no other routine maintenance is required.
Will the system increase my energy bill?

The radon fan runs continuously and uses about the same amount of electricity as a standard light bulb, usually adding only a few dollars per month to your energy bill.

If you have confirmed elevated radon levels in your home and want to reduce them with a system designed for your foundation type, get in touch with Radon Safe Homes and Businesses to schedule an on-site evaluation and receive a free estimate.