J & I Duct Fab, LLC is a sheet metal fabrication shop located in Covington, Ohio. It’s leadership core has over 100 years in HVAC manufacturing experience. Since there are only a couple of large shops in southwest Ohio, J & I Duct Fab saw a niche and has filled it as a large scale quality manufacturer of HVAC square duct and fittings, spiral duct and fittings and custom metal fabrication. No other shop within the tri-state area of Kentucky, Indiana, and Ohio can beat the manufacturing capabilities of J & I Duct Fab.