HVAC Duct | Pittsburgh | Spiral, Rectangular, & Flex

Our ductwork products range from standard stock duct to custom duct and fittings fabricated to your specifications.

IF YOU CAN DRAW IT, WE CAN BUILD IT.

We specialize in fabricating ductwork for residential and commercial contractors. We are also a fully stocked distributor of HVAC supplies.

A heating contractor's most profitable time is spent in sales, service and installation.We have more than 100 years of combined experience, and delivery services are available. Let Hennemuth Metal Fabricators take care of all your ductwork needs.

Rectangular Duct

We use Slip and drive as well as four-bolt rectangular duct connectors, Pittsburgh Duct and Snap Lock Duct.

60" wide Duct
59" Slip and Drive
56" TDF
60" Ductmate Flange

Square Duct Hanger

Broadway Elbow 90º

Broadway Elbow 45º

Shortway Elbow 90º

Shortway Elbow 45º

General Return Air Boot
Designed to Fit
General Air Cleaners

Return Air Boot
with Filter Rack

Filters

Duct Adaptor

Starting Collar
6" Long Flange / Drive

End Cap

Reducer
16" Length Drive / Drive

Spiral Duct

Comes in 10' standard lengths and custom lengths up to 20'. Fittings are gasketed up to 20" and flange connections 22" - 30". Flange can be ordered for smaller sizes if requested.

Spiral Pipe

Spiral Pipe Paint Grip

90º Elbow
Stamped and Gored

45º Elbow
Stamped and Gored

Reducers

Spiral Tee

End Caps

Spiral Damper Sleeve

Spiral Bell Mouth

Spiral Saddle Taps

Couplers

Up to 20"

Flange & Over ring

Gripple

Curved Spiral Diffusers

Spiral Diffusers

Custom Duct

Can't find the size or shape you need?

We'll custom fabricate ductwork to your exact specifications. We can also work with you to design ductwork runs, manufacture custom pieces or suggest alternatives to save you time and money on your next job.

Options include internal lining of ductwork with 1/2" or 1" insulation and external wrapping of ductwork, Slip and Drive, four-bolt rectangular duct connectors, Pittsburgh Duct or Snap Lock Duct.