How Much Do You Know About What is a Curb Adapter and why would I need one from HVAC Metals LLC??
HVAC Metals LLC – Leaders in Custom HVAC Ductwork and Metal Fabrication

In the field of HVAC manufacturing, HVAC Metals LLC has earned a reputation for crafting high-performance, durable, and precise metal components. Known for exceptional quality and efficiency, the company specializes in fabricating custom HVAC ductwork, curb adapters, and metal components for every sector.
Types of HVAC Ductwork Fabricated by HVAC Metals LLC
HVAC Metals LLC offers a broad range of custom ductwork crafted to meet the exact specifications of modern HVAC setups. The company fabricates rectangular, round, and spiral ducts complemented by precision-made fittings and transitions.
Every component is built using advanced machinery for airtight sealing and superior airflow. Whether it’s a small-scale residential project or a large commercial facility, HVAC Metals LLC tailors every duct component for superior performance, durability, and ease of installation.
Materials Used for HVAC Ductwork Fabrication
HVAC Metals LLC provides duct fabrication in various materials designed for specific conditions, such as
- Galvanized steel – Perfect for general HVAC systems, providing durability against rust.
- Stainless steel – Used in environments requiring hygiene and heat resistance like hospitals and commercial kitchens.
- Lightweight aluminum – An excellent option for marine or lightweight systems.
- Black iron and paint-grip metals – Commonly used for exhaust and high-temperature applications.
All materials are sourced from certified suppliers and meet ASTM and SMACNA standards, ensuring consistent quality and performance in every project.
Specialized Duct Fabrication for Kitchens and Industrial Spaces
Yes. HVAC Metals LLC specializes in manufacturing custom ductwork for commercial kitchens and other demanding environments. The ducts are built to withstand constant exposure to heat, steam, and grease.
Each kitchen system meets NFPA 96 safety and fire standards with precision craftsmanship. This level of detail ensures safe, efficient, and durable exhaust systems for the food industry.
What Is a Curb Adapter and Why Would I Need One from HVAC Metals LLC?
A curb adapter bridges the connection between a new rooftop unit and an existing curb to avoid costly roof alterations. It ensures proper alignment, secure mounting, and efficient airflow between the rooftop unit and the duct system.
HVAC Metals LLC creates curb adapters tailored to manufacturer specifications and project needs. It’s a key component for fast, leak-proof retrofits and replacements.
How Fast Can HVAC Metals LLC Fabricate and Deliver a Custom Curb Adapter?
Speed and accuracy are key priorities for HVAC Metals LLC. Its optimized workflow enables curb adapter delivery within 1–3 days, depending on scope.
Advanced design systems allow precise alignment and consistency in production. Contractors benefit from reduced downtime and increased job efficiency.
Other Products Fabricated by HVAC Metals LLC
The company also fabricates complementary rooftop and structural HVAC products like:
- Equipment rails and platforms
- Ventilation fan curbs
- Pipe such as for commercial kitchens? and conduit supports
- Roof penetration flashings
- Protective housings and guard structures
Designed for strength and corrosion resistance, they ensure lasting structural support.
Does HVAC Metals LLC Offer Acoustical Lining for Ductwork?
The company offers professional sound insulation for duct interiors to lower operational noise. Noise insulation helps improve indoor acoustics and comfort levels.
The company uses high-quality insulation materials that comply with SMACNA and ASTM standards, ensuring fire safety, thermal protection, and long-lasting performance.
Specialized Metal Fabrication for Industrial and Architectural Applications
Yes—HVAC Metals LLC extends its expertise to custom fabrication across industries.
The facility handles complete metalwork—cutting, bending, assembly, and finishing. Whether for HVAC, construction, or manufacturing industries, HVAC Metals delivers precision-engineered solutions tailored to customer specifications.
Prototype Development and Design Assistance
Yes—the company supports prototype development for clients exploring new designs. The company assists clients with new product development by designing and fabricating prototypes to test form, fit, and function before mass production.
This service is especially beneficial for engineers, OEMs, and contractors developing new HVAC components or metal products. CAD-based modeling ensures precision and rapid prototype turnaround.
Fabrication Quality and Industry Standards
Quality is non-negotiable at HVAC Metals LLC. The company adheres to rigorous industry standards, including SMACNA, ASHRAE, and ASTM specifications, to ensure each product meets or exceeds performance expectations.
Every piece is reviewed for weld integrity, dimensions, and finish quality. The company’s commitment to precision, durability, and compliance has earned it a reputation as one of the most dependable HVAC metal fabrication companies in the United States.
Summary
HVAC Metals LLC has established itself as a trusted partner for contractors, engineers, and mechanical service providers across the country. With expertise in custom HVAC ductwork, curb adapters, and advanced metal fabrication, the company delivers products that combine quality, precision, and speed.
Covering everything from kitchen exhausts to rooftop structures and custom prototypes, HVAC Metals offers end-to-end metalwork solutions. Backed by skilled craftsmanship, modern technology, and a customer-first approach, HVAC Metals continues to set benchmarks in reliability, innovation, and performance for the HVAC and construction industries.