Custom Fabricated Curb Adapters for Commercial HVAC Systems
Custom Fabricated Curb Adapters for Commercial HVAC Systems
Custom Rooftop Curb Adapters Fabricated by Macy Industries: Built for Fast, Accurate HVAC Retrofit Projects
At Macy Industries, we specialize in fabricating custom rooftop curb adapters for commercial and industrial HVAC retrofit projects. When replacing rooftop units, the new equipment rarely matches the existing roof curb footprint. Our team manufactures custom HVAC curb adapters designed to simplify installation, reduce rooftop modifications, and minimize system downtime. Whether you are replacing aging rooftop units, upgrading to more efficient systems, or retrofitting obsolete equipment, Macy Industries delivers precision-fabricated solutions built for your exact application.
Why Invest in a Custom Rooftop Curb Adapter?

A properly designed rooftop curb adapter helps ensure a smooth HVAC equipment replacement while reducing costly field modifications and installation delays. Custom fabricated curb adapters provide:
- Faster HVAC Retrofits: Reduce rooftop labor and simplify installation with adapters built to match your existing curb and new equipment dimensions.
- Improved Fit and Performance: Properly aligned supply and return air openings help maintain system efficiency and airflow performance.
- Reduced Downtime: Minimize disruptions to your facility by streamlining rooftop unit replacement projects.
The Macy Advantage
When you choose Macy Industries, you’re partnering with a fabrication team focused on accuracy, speed, and dependable HVAC retrofit support:
- Custom Fabrication: Every rooftop curb adapter is fabricated specifically for your project requirements, equipment specifications, and field dimensions.
- Durable Construction: We manufacture galvanized, welded, and custom-finished curb adapters designed to withstand demanding rooftop environments.
- Accurate Fit-Up: Precision fabrication helps reduce field adjustments and installation complications.
- Fast Turnaround Times: We understand retrofit schedules and work quickly to help keep your HVAC project moving.
- Shop Drawings and Support: Our team can assist with fabrication drawings, dimensions, and project coordination.
Commercial and Industrial HVAC Applications
Our custom rooftop curb adapters are fabricated for a wide range of HVAC retrofit and replacement applications, including:
- Rooftop Unit Replacements: Adapt existing roof curbs to fit new RTUs and HVAC equipment.
- Commercial HVAC Retrofits: Simplify upgrades for schools, office buildings, warehouses, and retail facilities.
- Industrial Ventilation Systems: Support large-scale HVAC and air handling equipment transitions.
- Exhaust Fan and Makeup Air Systems: Custom fabricated transitions for ventilation equipment replacements.
- Custom Duct Transitions: Precision-built transitions for unique airflow and rooftop configurations.
- Multi-Piece and Welded Assemblies: Complex fabricated solutions for large or challenging retrofit projects.
From Measurements to Installation
Macy Industries makes the rooftop curb adapter process straightforward. Provide your existing curb dimensions, equipment submittals, or rooftop unit specifications, and our team will fabricate a custom solution designed for efficient installation and long-term performance. We work closely with contractors, facility managers, and HVAC professionals to help reduce installation headaches and keep retrofit projects on schedule.
Request a Quote for a Custom HVAC Curb Adapter
Need a custom rooftop curb adapter for your next HVAC retrofit project? Contact Macy Industries today for pricing, lead times, and fabrication support. Our team is ready to help deliver fast, accurate solutions for your commercial and industrial HVAC equipment replacement needs.