Before & After Photos

The clients had recently had their home tested and found a need for the installation of a mitigation system to lower their radon levels. The house contained a basement and a crawlspace portion.

Idaho Radon installed an active depressurization system for a residence in Idaho City.  Attached are a before and after picture of the exterior of the system.

The project commenced in the latter half of 2024 with radon testing conducted in one of the five buildings at Shadow Mountain Apartments in Idaho City. Following initial resident-conducted testing, the scope was expanded to include all five buildings to verify the findings. The results confirmed that each building exhibited elevated radon levels exceeding 4.0 pCi/L.

To address this issue, a dedicated mitigation system was installed for each building, incorporating a 6-mil vapor barrier. Fans were strategically positioned at the rear corners of the buildings to minimize both visual and auditory impact.

The project was successfully completed within 2.5 days by a two-person team. During the installation process, management was also informed of observed water leaks and structural concerns. Electrical connections for the fans were performed by a qualified electrician hired by the client.

During the inspection of a home under contract in Idaho City, the buyer’s home inspector discovered an elevated radon level of 12.0 pCi/L. With limited service providers available in the home’s remote location, Idaho Radon designed an active sub-slab depressurization system that included a suction point drilled horizontally through the foundation footer beneath the basement floor. The vent piping was routed through an adjacent 9-foot-high storage crawlspace, with the fan installed on the exterior and venting extended to roof level.

One unique challenge was the basement floor—it was constructed of brick rather than a traditional concrete slab, creating concern that multiple suction points might be necessary. Fortunately, the completed system successfully reduced the average radon level from 12.0 pCi/L to 2.7 pCi/L.

Repair & Improvement to Crawlspace Encapsulation in Hailey, ID - Replaced and fully sealed a new crawlspace membrane which meets radon mitigation standards.