Sheet Metal Fabrication and Ductwork in Wisconsin

In-house ductwork fabrication for commercial HVAC projects across Wisconsin.

Why In-House Fabrication Matters

When sheet metal is built in-house, planning and installation get better. Coordinate ductwork layouts with engineering and the field team That saves time and money—and we pass those savings on to our customers.

  • It helps us:
  • Adjust faster when jobsite conditions change
  • Reduce delays caused by long lead times
  • Keep quality consistent from shop to install

Union Sheet Metal Shop + Field Experience

Sheet metal is H&H’s most established division. We have union sheet metal workers both in our shop and on our field staff, with a wide range of project experience. Our sheet metal teams often work with engineering for coordination so duct routes don’t conflict with other MEP trades. And when an unexpected issue comes up in the field, our crews use years of experience to solve problems and keep the job moving.

Built to SMACNA Standards

Our shop and field teams follow SMACNA standards for duct fabrication and installation. That helps support proper airflow, fit, and long-term durability.

Types of Ductwork We Fabricate and Install

Our teams have experience with many duct systems, including:

  • Transverse duct connections (TDC)
  • Slip and drive duct connections
  • Stainless steel ductwork
  • Specialty exhaust ductwork
  • Kitchen exhaust ductwork (grease duct)
  • Welded / black iron ductwork

Sheet Metal Service Area

We support commercial HVAC projects across Wisconsin.

Need Ductwork Fabrication for a Commercial Project?

If you need ductwork that fits your building, installs cleanly, and supports strong airflow performance, H&H Mechanical Contractors can help. Request a quote or talk with our team.

Frequently Asked Questions

Do you fabricate ductwork in-house?

Yes. We have a fully functioning union sheet metal shop and fabricate ductwork for many of our jobs.

Do you follow SMACNA standards?

Yes. Our shop and field teams follow SMACNA standards for fabrication and installation.

What types of duct systems do you work with?

We work with TDC, slip and drive, stainless duct, specialty exhaust, kitchen grease duct, and welded/black iron ductwork.

Ready for Sheet Metal Fabrication and Ductwork Help?

Contact H&H Mechanical Contractors today. Commercial work statewide in Wisconsin.