YYBunker is a sheet metal duct fabrication shop headquartered in Brooklyn, New York. We operate a 20,000 sq. ft. manufacturing facility dedicated to the fabrication of HVAC and mechanical ductwork — serving contractors, engineers, architects, and industrial clients across a wide range of project types and scales.
We are fabricators. That means every piece of duct that leaves our shop was designed, formed, and quality-checked by our team — not sourced from a distributor, not stock material off a shelf. Your duct is built to your project’s exact specifications, every time.
At YY BUNKER, our strength lies in our people.
Behind every project is a devoted team of skilled fabricators, estimators, and project coordinators who take ownership of your order from submission to delivery. We understand that delays on the shop floor become delays on the job site — which is why fast, accurate turnaround is built into how we work, not just promised.
Accurate takeoffs, tight tolerances, and consistent quality control are not optional - they are how we operate on every order, regardless of size.
Every project is different. We fabricate standard systems as efficiently as we handle complex custom configurations. If you have a unique requirement, bring it to us.
We work closely with mechanical contractors, HVAC subs, GCs, and design professionals. We are not just a vendor - we are an extension of your project team, invested in the success of your installation.
When you submit a project to YYBunker, you get a committed timeline, clear communication, and ductwork that arrives ready for the field.