Executed comprehensive ductwork cleaning for a client in Pell City. Utilized Hypervac 12,000 CFM truck-mounted vacuum system with HEPA filtration. Cleaned all supply and return ducts using Viper microline whips and rotating brushes. Removed multiple blockages of accumulated debris. Applied EPA-registered antimicrobial fogger to inhibit mold growth. Cleaned and sanitized all registers, grilles, and diffusers. Performed pre- and post-cleaning airflow measurements, documenting 45% improvement. Conducted video inspection with Vivax-Metrotech vCam-6 to verify thorough cleaning. Sealed accessible duct seams with mastic. Provided before and after photo documentation and detailed report to homeowner.