Our unique process begins with a video inspection. After determining your ducts' condition, we develop a plan for restoration, starting with a thorough cleaning. Your system is then primed to eliminate rust growth and to establish a rigid foundation for the repair process to begin. After drying, all major areas of deterioration are rebuilt with a high viscosity duct sealant and sheet metal where applicable, then allowed to dry. Finally, our fungicidal (anti-fungal) protective coating is applied and recorded for quality assurance. We also give you a transferable workmanship warranty.