Precision Duct
Fabrication. 

Every Type. Any Scale

YYBunker is a Brooklyn-based sheet metal duct fabrication shop specializing in the design and manufacturing of HVAC and ventilation ductwork for commercial, residential, and industrial projects. With a 20,000 sq. ft. facility and a devoted team of fabricators, we deliver precision-built ductwork – on time and to spec.

The YYBunker Difference

When your project demands accuracy, speed, and craftsmanship, you need a fabrication shop that treats every order as a priority. At YYBunker, we combine hands-on expertise with a fully equipped 20,000 sq. ft. production facility to deliver sheet metal ductwork that’s built right – the first time. We work directly from your shop drawings, mechanical plans, or hand sketches. Our team performs the full material takeoff and manages the fabrication process from start to finish – so you can stay focused on the job site.

What We Fabricate

Oval Duct

oval duct

Spiral Round Duct

spiral round

Rectangular Duct

rectangular duct

Black Iron Sheet
Metal Duct

black iron sheet

Aluminum Sheet
Metal Duct

aluminum sheet duct

Custom Duct &
Specialty Fabrication

custom duct fabrication

Our Process

Step 1:

Submit Your Plans

Send us shop drawings, mechanical plans, or hand sketches — we work with whatever format you have.

Step 2:

We Handle the Takeoff

Our team performs a thorough material takeoff, ensuring accurate quantities and eliminating costly errors before fabrication begins.

Step 3:

Fabrication in 
Our Shop

Your ductwork is fabricated in our 20,000 sq. ft. facility with precision forming equipment and rigorous quality checks at every stage.

Step 4:

Delivery & Installation

We deliver directly to your job site and offer installation services for qualifying projects - anywhere you need us.

Who We Serve

Why Professionals Choose YYBunker

01/
20,000 sq. ft. fabrication facility in Brooklyn, NY
standard commercial and residential HVAC applications
02/
Full range of sheet metal duct types under one roof
standard commercial and residential HVAC applications
03/
Complete takeoff service from drawings, plans, or sketches
standard commercial and residential HVAC applications
04/
Fast turnaround - we understand construction schedules
standard commercial and residential HVAC applications
05/
Delivery to your job site, wherever the project is
standard commercial and residential HVAC applications
06/
Installation services available
standard commercial and residential HVAC applications
07/
Experienced team with deep knowledge of the trade
standard commercial and residential HVAC applications
low angle view building