Custom Metal Fabrication Solutions Built to Your Specs

Custom Metal Fabrication Solutions Built to Your Specs

Madon Sheet Metal delivers custom metal fabrication built to your exact needs with precision, strength, and expert craftsmanship.

From Concept to Completion,
Custom Fabrication That Delivers

From Concept to Completion,
Custom Fabrication That Delivers

A professional welder wearing protective gear performs a precision weld on a large metal beam inside an industrial fabrication shop.

Custom Fabrication

Custom Fabrication

Welded duct isn’t standard; it’s built to order. Madon Sheet Metal steps in with tailored fabrication solutions built to match your exact design specs and project needs. We specialize in RTU Curb Adapters, Welded Exhaust and Collection Duct, Fan Adapters, and Welded Sheet Metal Accessories that integrate seamlessly with your systems and site conditions.

Backed by Numbers, Built on Trust

  • 200+ Clients Served

  • 3 Day Typical Turn Around on Small Adapters

  • 5,000+ Projects Fabricated

Optimize Operations with
the KURBULATOR

Optimize Operations with
the KURBULATOR

Madon Sheet Metal is powered by KURB! Our KURBHUB portal makes online pricing and ordering easy. Search our library of over 20,000 RTU adapters to find the correct curb adapter for your next project.

KURBHUB Offers:

  • Instant Pricing and Designs on all adapters in the KURBHUB Library

  • Access from your computer or mobile device

  • Curb Search for roof curbs that have an existing adapter on it

Trusted by Industry Leaders Who Demand the Best

Trusted by Industry Leaders
Who Demand the Best

““The best quality in customer service and extremely quick turnaround. During an emergency, John quickly fabricated and delivered directly to our job site within hours.””

You Want Our Welding

You Want Our Welding

From the first conversation to final delivery, we take pride in delivering exactly what you need with expert craftsmanship, reliable communication, and turnaround times that keep your project moving.

Fast Turnaround

Orders are fabricated and delivered quickly to keep your project on schedule.

Precision Craftsmanship

Every product is Union Made to spec by certified welders using SMACNA Standards

Mobile KURBHUB Accessibility

Access our KURBHUB portal from any cell phone or tablet. Easily quote, order, or make changes to your project from any device. Great for making real time changes while on site.

A welder using a Miller welding machine joins sections of large metal ductwork inside a fabrication shop, producing bright sparks during the process.
Who We Are

Chicagoland’s Leader in Welded HVAC Fabrication

Chicagoland’s Leader in
Welded HVAC Fabrication

Founded in 2019, Madon Sheet Metal strives to provide the highest quality sheet metal ductwork and accessories. We are a small business rooted in family tradition, friendship, and having fun while working hard. By constantly learning and investing in new equipment and techniques, our goal is to continue to grow, innovate, and advance our skills and our trade. We embrace our past while pushing forward.

AWS Certified Welding

AWS Certified in Coated and Uncoated Steel, Stainless Steel, and Aluminum Sheet Metal.

Precision Fabrication

SMACNA Standards. Union Made.
Built to Perform.

What Our Partners Are Saying

What Our Partners Are Saying

Real feedback from contractors, builders, and pros who count on our work
and keep coming back for more.

The best quality in customer service and extremely quick turnaround. During an emergency, John quickly fabricated and delivered directly to our job site within hours.

Medea O’Malley

John is professional but more importantly knowledgeable. The team is responsive to communication and help with logistics. The welding dept is second to none in quality.

Rolando Cruz

Excellent customer service and puts the customer first. Great delivery times and prices.

Jerome Bell

Quality Sheet Metal Products Built to Last

Quality Sheet Metal Products Built to Last

Chicago’s Leading Provider of Custom Curb Adapters and Welded HVAC Fabrication Solutions. Proudly serving contractors, engineers, and builders across the region with precision-built components, certified welds, and fast turnaround you can
count on.

Chicago’s Leading Provider of Custom Curb Adapters and Welded HVAC Fabrication Solutions. Proudly serving contractors, engineers, and builders across the region with precision-built components, certified welds, and fast turnaround you can count on.

This error message is only visible to WordPress admins
There has been a problem with your Instagram Feed.