What Services Does DDAN Provide?
DDAN Hood Cleaning & Repair provides complete commercial kitchen exhaust system services, including cleaning, repair, installation, parts, and maintenance. Based in Mt. Juliet and serving Nashville and surrounding Middle Tennessee, we help commercial kitchens stay safe, compliant, and fully operational. All services follow NFPA 96 standards and include full photographic documentation.
Hood Cleaning (NFPA 96 Compliant)
We provide full-system hood cleaning for restaurants and commercial kitchens, including hoods, grease filters, ducts, and exhaust fans. Every job delivers before-and-after photos and full compliance documentation.
Hood Repair
Our technicians repair damaged hood systems by fixing welds, replacing filter tracks, sealing gaps, repairing duct connections, and restoring airflow performance.
Kitchen Ventilation System Installation
We install complete commercial kitchen ventilation systems, including hoods, ductwork, exhaust fans, makeup air units, and fire suppression components.
Grease Containment Installation
We install rooftop grease containment units to protect roofs from chemical damage, grease runoff, and fire hazards.
Exhaust Fan Hinge Kit Installation
DDAN installs NFPA 96-required hinge kits on upblast exhaust fans to allow safe access for cleaning and inspection.
Exhaust Fan Belt Replacement
When belts wear out or break, airflow drops and motors overheat. We replace belts, set proper tension, and align pulleys.
Exhaust Fan Motor Replacement
We replace rooftop and inline fan motors with correctly sized commercial-grade units. The service includes wiring, balancing, and testing.
Access Panel Installation
NFPA 96 requires access panels every 12 feet and at every turn in grease ducts. We install code-compliant access panels.
Fire Suppression System Installation
We install UL 300-compliant fire suppression systems for commercial kitchen hoods, complete with nozzles, fusible links, agent tanks, and testing.
Kitchen Exhaust Fan Replacement
We replace damaged or undersized exhaust fans with properly sized, balanced, and correctly mounted units.
Hood Filter Replacement
We replace damaged or clogged hood filters with stainless steel or aluminum baffle filters designed for proper grease capture.
Ductwork Repair
We repair leaking or grease-saturated ductwork using professional welding and resealing methods to NFPA 96 standards.
Ductwork Installation
We design, fabricate, and install new grease duct systems for commercial kitchens built for proper airflow and cleanability.
Makeup Air Unit Installation
We install makeup air units to balance airflow in commercial kitchens, including ducting, controls, and heating/cooling options.
Grease Duct Cleaning
We provide deep cleaning of grease ducts from hood to fan using pressure washing, scraping, and degreasing methods.
Rooftop Grease Containment Maintenance
We clean, maintain, and replace grease containment pads and systems to prevent rooftop fires and membrane damage.
Kitchen Exhaust System Inspection
We inspect hoods, ducts, fans, access panels, grease containment, and fire suppression components with photo reports.
Exhaust Fan Cleaning
We clean exhaust fans, blades, and housings to restore airflow, reduce fire hazards, and prevent overheating.
Serving Middle Tennessee — Based in Mt. Juliet, DDAN proudly serves Nashville and all surrounding Middle Tennessee communities with complete kitchen exhaust system services.
