09/08/2026
Sub Slab Depressurization
During a real estate transaction in Boise, Idaho, a radon test revealed basement levels averaging 4.5 pCi/L, prompting the homeowner to seek a mitigation system before closing. They chose Idaho Radon because of our excellent Google reviews and our ability to complete the installation within their required deadline. Our team installed an active sub-slab depressurization system with the suction point strategically located in a storage room near the crawlspace entrance.
A unique challenge was a load-bearing footing that divided the basement slab, limiting airflow beneath the foundation. To ensure effective depressurization across the entire basement, we drilled communication holes through the footing, allowing the system to create consistent negative pressure on both sides. By overcoming this structural obstacle and completing the project on time, we helped keep the home sale on schedule while providing a long-term solution for elevated radon levels.