TNT now has posters depicting our products. Click here to download or view.
Be sure to update your address book with our new location.
6315 Erdman Ave. Baltimore, Md. 21205
TNT Manufacturing is a full service spiral duct manufacturer, supplying all of the round duct needs of HVAC and Mechanical contractors. Stocking a full complement of pipe and fittings allows us to provide timely deliveries to meet your project needs. We offer a complete package from take-off of the blueprints during the bid process to delivery to your job site.
Our fabrication capabilities include, however are not limited to, the following: