Profile: Advanced Fabrication Services is engineering and manufacturing company. We specialize in biomass/renewable energy-wood fired boiler, dust collection, fuel storage and material transfer systems. Our fuel storage silos are available in concrete or metal configurations. Our bunkers are designed with a series of hydraulically operated scrapes located at the bottom of the bin. We specialize in custom fabrication, carbon steel, galvanized steel, stainless steel, aluminum, A.R. plate, high-definition plasma cutting, welding service and structural steel fabrication.