We Meet Scheduled Shutdowns National Chimney & Stack is a full rope access company. We provide structural inspections, servicing and repair on all industrial chimneys and stacks of any size in every region of the United States. • Rigging & Lifting • Industrial Smokestack Repair/Inspections • Industrial Stack Demolition • Breaching Ducts • Industrial Rope Access • Scrubber Inspections • Obstruction Lighting Installation and Repairs