Installing a Radon Mitigation System

Radon Levels in Duplex Require a Customized Mitigation System

Testing revealed radon levels of 22 pCi/L in this duplex, well above the EPA's recommended action level of 4 pCi/L. Because the property has an interior drain tile system connecting both units, the mitigation approach required careful planning, including discussions with the neighboring homeowner. Due to the electrical panel's location in the utility room, only one extraction point can be installed. The tight space around the home's exterior also presents challenges for routing the system and placing the fan. Given these limitations, a specific post-mitigation radon level cannot be guaranteed. 

Radon Mitigation for Two Story Home With Future Addition Plans

This older two-story home tested at 6.8 pCi/L, prompting a smart radon mitigation plan designed with future expansion in mind. With another addition planned, the system will exit on the east side, avoiding interference with upcoming construction. The design includes two sub-slab extraction points on either side of the poured foundation wall, with one placed near the plumbing stack. The system will core low through the foundation and route around the soffit for a clean finish. Care was taken to preserve the homeowner’s layout, allowing furniture to remain in place. To further improve indoor air quality, the project also includes duct cleaning and a Breathe EZ filter installation.

Red Brick Ranch Radon Fix: Custom System for Stubborn Levels in a Geothermal Home

After putting off mitigation for some time, this homeowner in a brick walk-out ranch was ready to take action. With radon levels at 14 pCi/L, it was clear that a more effective and permanent solution was needed. There was no sump pit, only exterior drain tile and pea gravel beneath the slab, plus a hidden passive pipe that proved unreliable. To deliver reliable radon abatement, we designed a 2-point sub-slab extraction system along the north wall, spaced 15 feet apart (disregarding the outdated job drawing). The system will exit through the block wall and brick, with a fan and muffler installed on the side of the home, carefully routed around the soffit for a clean finish.

They currently operate an ERV system with geothermal HVAC, which we encouraged them to run more consistently. A custom Breathe EZ (29x25) unit with L brackets is part of the plan, replacing the awkward filter stack they currently use (16x25x2 + 14x25x2). Sealed 25 feet of visible slab cracks near the HVAC system and finish with duct cleaning and standard fogging; creating cleaner air and real radon reduction.

Two-Point Radon Mitigation System with WaterGuard Sealing

This project involves installing a customized two-point radon mitigation system to help reduce radon exposure and improve indoor air quality. One extraction point will utilize the existing WaterGuard system, which will also need to be properly sealed as part of the installation. The second extraction point will support the home's radon mitigation needs, with the system routed to exit through the rear of the house near the fence. Careful placement and sealing are important parts of creating an effective radon reduction solution.