Fix basement mold issues by first addressing moisture problems. Clean mold with a mold-killing solution, and use a dehumidifier to reduce humidity. Apply mold-resistant paint and consider improvements to ventilation and insulation.

Address moisture problems, clean mold with a mold-killing solution, and use a dehumidifier to reduce humidity. Apply mold-resistant paint and improve ventilation and insulation. Proper treatment and prevention measures manage and eliminate mold issues effectively.