Radon Mitigation System Maintenance Checklist
Radon mitigation system maintenance requires monthly pressure checks, annual seal inspections, and radon retesting every two years. Without these steps, a failing sub-slab depressurization system can allow radon to silently climb back above the EPA’s action level of 4 pCi/L — with no odor, color, or warning sign to alert you. Why Radon Mitigation System […]