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HVAC ductwork

Commercial HVAC Ductwork Supplies: Spiral, Rectangular & Fittings

Streamline your MEP projects with our comprehensive range of HVAC ductwork systems. From aesthetic spiral duct pipes to space-saving rectangular ducts, we manufacture precision-engineered duct fittings and connections designed for low air leakage and faster on-site installation.
SMACNA Compliant
Ready-to-Install
Custom Fabrication

Precision Fabricated HVAC Ductwork & Connection Systems

We manufacture spiral and rectangular ducts that meet strict industry standards for airtightness. By using our pre-fabricated components and secure connection systems, you can ensure smooth airflow performance while significantly reducing assembly time on the job site.

Minimized Air Leakage

Our HVAC ducts feature machine-formed lock seams that ensure a tight seal. This design minimizes air loss and pressure drops, helping your HVAC system run efficiently without wasting energy.

Installation Efficiency

Every component is pre-fabricated to exact dimensions. This precision fit eliminates the need for on-site cutting or modification, significantly reducing labor hours and installation costs for your team.

Durable Material Specs

Fabricated from high-grade Galvanized Steel (G90/Z275) or Stainless Steel. Our products are built to resist corrosion and wear, ensuring a long, maintenance-free lifespan for commercial and industrial environments.
Our Products

Comprehensive HVAC Ductwork For Sale

We deliver high-performance air distribution solutions for any project scale, manufacturing everything from standard rectangular ducts to complex, precision-engineered spiral systems and custom fittings.
Primary HVAC Ducts

Primary HVAC Ducts

Choose the right profile for your building’s architecture and space constraints.

Spiral Duct Pipe

Ideal for exposed ceilings and high-velocity airflow.

Rectangular HVAC Duct

Maximizes area in tight ceiling voids.

Double Wall Duct

Inner liner for superior acoustic insulation.

Flat Oval Duct

Combines aesthetics with low-profile clearance.
Precision Fittings & Transitions

Precision Fittings & Transitions

Minimize pressure loss with smooth, factory-engineered elbows and reducers.

HVAC Duct Elbow

45°/90° radius to guide airflow without turbulence.

Duct Reducer

Efficiently changes size to maintain air velocity.

HVAC Duct Tee

Splits or merges airflow with minimal resistance.
Connections & Installation Accessories

Connections & Installation Accessories

Choose the right profile for your building’s architecture and space constraints.

TDC Duct Corner & Flange

Ensuring high structural stability for rectangular systems.

Flexible Duct Connector

Isolates ductwork from fan vibration.

Duct Access Door

Essential for routine inspection and cleaning.

HVAC Ductwork Installation Standards & Specifications

Engineered to meet international HVAC codes for safety and durability.

Industry Compliance

Our ductwork systems are fabricated in accordance with major international standards to ensure structural integrity and airtightness.
SMACNA:Duct Construction Standards
DW/144:Sheet Metal Ductwork Spec
ISO 9001:Quality Certified

Raw Material Quality

We use premium raw materials to prevent corrosion and extend service life, suitable for various environmental conditions.
Galvanized Steel:G90 / Z275 coating
Stainless Steel:304/316 for hygiene
Aluminum:Moisture-resistant

Joint & Seam Technology

Precision-formed locks and flanges ensure minimal leakage class compliance (Class A/B/C).
Spiral Lock Seam:4-ply for rigidity
Transverse:TDC/TDF flanges
Gaskets:EPDM integrated options

Welcome to the BromingHVAC Ductwork factory

receive a quote for your HVAC ductwork

Are you ready to receive a quote for your HVAC ductwork parts?

Wishing to optimize your HVAC system and improve airflow efficiency? Looking for ways to upgrade your ventilation setup? Then congratulations, you’re in the right place!
We’re here to help you take your HVAC system to the next level, whether you’re installing new ducts or upgrading your existing setup. Eliminate inefficiencies and improve air quality by consulting with us. Get in touch now to receive your custom quote and start optimizing your air duct system today!

Common Questions About Our HVAC Custom Systems

What is the main difference between Spiral and Rectangular ducts?

Spiral ducts offer better airflow efficiency (lower pressure drop) and are easier to seal against leakage. They are often used for exposed ceilings. Rectangular ducts are best for maximizing cross-sectional area in tight spaces where ceiling height is limited.

How do you handle shipping for large ductwork orders?

To reduce shipping costs, we offer nesting services (placing smaller ducts inside larger ones) for spiral pipes. For rectangular ducts, we can supply them in L-sections or flat-packed forms to maximize container space for international delivery.

Can you fabricate custom duct fittings for specific project requirements?

Yes. As a direct manufacturer, we specialize in custom fabrication. Whether you need non-standard angles, complex transitions, or specific heavy-gauge materials (e.g., 16-gauge or 18-gauge), we can build to your exact drawings.

When should I use Double Wall Insulated Duct?

Double wall ducts are recommended for projects requiring acoustic insulation (like hospitals, studios, or libraries) or strict thermal control. The inner liner prevents insulation fibers from entering the airstream while dampening noise.

Do your products meet SMACNA or DW/144 standards?

Absolutely. Our manufacturing processes strictly follow SMACNA and DW/144 guidelines for sheet metal construction, ensuring our ducts meet the required rigidity and air leakage classes for commercial and industrial projects.