Radon Mitigation
Once you discover your Radon levels exceed the EPA action level of 4.0 pCi/L, installing a Radon mitigation system is one of the most affordable ways of reducing your family’s risk of lung cancer, through Radon risk reduction.
Each Radon mitigation system is unique and designed specifically for your home’s needs. Our licensed Radon professionals will examine both the interior and exterior of your home and perform thorough diagnostic testing to determine the most effective placement and configuration of your mitigation system, keeping you informed every step of the way.
What is Radon?
Radon is the second leading cause of lung cancer. It is an odorless, invisible, and radioactive gas resulting from Uranium decay in the ground. It accumulates in homes without proper ventilation requiring a specialized system that creates a vacuum under the home to vent it out before it gets into the breathable air inside.
Radon is an odorless, tasteless, and invisible radioactive gas released from the natural decay of uranium found in soil and rock. It can infiltrate homes through cracks in foundations, walls, and flooring, accumulating to dangerous levels. As the leading cause of lung cancer among non-smokers, the Environmental Protection Agency (EPA) has classified radon as a significant health hazard, making radon testing and mitigation imperative.
O’Fallon’s geology makes it susceptible to radon gas accumulation, with many homes reporting levels above the EPA’s action threshold. Testing is especially crucial in real estate transactions to ensure homes are safe for new occupants. Ignoring the potential for high radon levels can lead to serious health risks, underscoring the need for regular testing.
Radon Mitigation Systems Explained
Radon mitigation systems are commonly based on Sub-slab depressurization. These systems prevent Radon gas from entering a home by eliminating the toxic Radon at the source, from underneath the home, using a combination of an installed piping system and a Radon exhaust fan.
Radon mitigation systems are designed to reduce radon levels in a building or home, thereby decreasing the risk of lung cancer and other health issues associated with long-term radon exposure. These systems work by preventing radon gas from entering the indoor space and by reducing existing indoor radon levels. There are several types of radon mitigation systems, and the choice of system depends on the design of the building, the source of radon, and other factors.
Normally the air pressure inside a house causes gases from under the soil to be sucked up into your home – not just through cracks but also through tiny pores in the cement slab itself. Radon mitigation systems minimize this, by instead routing those gases up through an installed piping system that exhausts them into a safe location in the atmosphere.
The key to venting the Radon out of the home is the PVC piping which is installed into the slab itself or into an existing sump pump (through a specialized lid), below the concrete floor. Above the surface, the piping is routed to the nearest outside wall, where it runs up along the exterior and exhausted over your roofline. (In some cases, the piping may be routed through an interior closet space or attached garage and through an attic space.)
To keep soil gases moving through the PVC piping and into the open outside air, a specialized Radon exhaust fan is installed about halfway up the piping, on the exterior of your house (or when applicable/requested in the attic or garage.) This is to ensure constant suction of the gases from the soil under your home.
All other obvious Radon entry points such as groundwater sump pits, cracks in basement floors, wall/floor joints, and crawlspace areas, will be sealed when applicable.
Traditional Outdoor
Sump Pit
Attic Indoor
Crawl Space Encapsulation
New Construction/In-Wall
Follow Up Radon Testing Ensures Your Mitigation System Is Working Properly
Once your Radon mitigation system has been installed, our technician will schedule a follow-up test to make sure your post-mitigation Radon levels are now below the EPA action level.
Our mitigation systems are guaranteed to reduce the Radon concentrations below the action level of 4.0 pCi/L in any home. In fact, most of the time our Radon-mitigation systems result in Radon levels below 2.0pCi/L.













