An In-House Sheet Metal Shop Backing Every Mechanical Project
BGSN's sheet metal division fabricates commercial HVAC ductwork and custom parts from the ground up — rectangular duct, round and spiral duct, transitions, fittings, plenums, and specialty pieces. By keeping fabrication in-house, we control quality, shorten lead times, and deliver exactly what the job needs.
Our sheet metal shop also serves outside contractors and supply houses as a vendor partner — supplying custom duct and parts to other mechanical and HVAC companies throughout the Gulf Coast region.
Sheet Metal Capabilities
From standard commercial duct runs to one-off custom parts, our shop is built to produce what your project needs.
Rectangular Duct
Custom rectangular ductwork for commercial HVAC systems — sized, sealed, and reinforced to spec for any project.
Custom & Specialty Parts
One-off parts, non-standard sizes, and custom configurations built to drawings or specifications you provide.
Round & Spiral Duct
Round and spiral duct for high-efficiency air distribution, industrial applications, and architecturally exposed runs.
Vendor / Wholesale Supply
We supply duct and sheet metal parts to other contractors and supply houses as a trusted fabrication vendor.
Fittings & Transitions
Elbows, reducers, tees, plenums, transitions, and all the connectors that bring a duct system together.
Submittal-Ready Quoting
Send us your drawings or fill out our submittal forms and we'll quote fast with everything your spec needs.
The Fundamentals of Quality Duct Fabrication
Duct fabrication is a critical part of any HVAC system, directly impacting airflow efficiency, system performance, and indoor air quality. Properly designed and fabricated ductwork ensures that air is distributed evenly, energy loss is minimized, and systems operate at peak efficiency.
The duct fabrication process begins with material selection — durable options such as galvanized steel or aluminum, chosen based on the specific demands of the project. From there, our team creates a custom ductwork design that accounts for building size, layout, and ventilation requirements to support efficient airflow throughout the facility.
During fabrication, materials are precisely cut, shaped, and assembled using specialized tools and proven techniques to match exact design specifications. The final step is professional installation, ensuring the ductwork integrates seamlessly with the HVAC system and meets all applicable codes and performance standards.
Rectangular vs. Round & Spiral Duct
Rectangular duct — the workhorse of commercial HVAC. Versatile, easy to fit in tight ceiling spaces, and the standard for most office, retail, and institutional projects.
Round & spiral duct — more efficient airflow with lower pressure loss, often used in industrial settings, large open spaces, and architecturally exposed installations where the duct itself is part of the design.
Entrusting duct fabrication to skilled professionals — and to a shop that controls the work end to end — ensures accuracy, longevity, and reliable system operation for commercial and industrial environments across the Gulf Coast.
Why Choose BGSN for Sheet Metal Fabrication
An in-house sheet metal shop is rare in this market — and it's the reason BGSN can deliver fabrication work other contractors can't match for quality, speed, or flexibility. Whether you're a GC running a tight schedule, a facility manager who needs a custom part fast, or another mechanical contractor looking for a reliable fabrication partner, our shop is built to deliver.
Why Choose BGSN for Construction Services
True In-House Shop — Fabrication is done by our own team, in our own facility, under our own quality control — not subbed out.
Faster Lead Times — Because we control the schedule, we can turn around projects without waiting on outside vendors.
Custom & One-Off Capability — Non-standard sizes, specialty fittings, and unusual requests are no problem — we build to your drawings.
Backed by 25+ Years — Our shop is part of a full-scope mechanical contractor with decades of commercial and industrial experience.
Who We Fabricate For
Our sheet metal shop supports both internal BGSN projects and external contractors, GCs, and supply houses that need a reliable fabrication partner.
Resources & Submittal Forms
Download our full catalog, product line card, and submittal forms to get a quote started faster.
Sheet Metal Catalog
Our full product catalog covering rectangular duct, round duct, fittings, and specialty items.
Round Duct Submittal Form
Sketch and spec your round/spiral duct needs so we can quote accurately and quickly.
Company Line Card
One-page summary of BGSN's full company capabilities across mechanical construction and sheet metal.
Rectangular Duct Submittal Form
Sketch and spec your rectangular duct needs so we can quote accurately and quickly.
Need Custom Duct or Sheet Metal? Let's Quote It.
Send us your drawings or fill out our submittal forms — our shop is ready to fabricate.