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Hennemuth Metal Fabricators

Manufacturers and Distributors to the HVAC Trade

101 North Branch Road, Oakdale, PA 15071

For Fastest Service, Call 724-693-9605

  • Ductwork
    • Spiral Ductwork
    • Rectangular Ductwork
    • Flexible Ductwork
    • All Duct Products
    • Ductwork Fittings & Connectors
  • Products
    • HVAC Pipe & Fittings
    • Zoning Products
    • Venting Products
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    • Round Grilles, Registers & Diffusers
    • Spiral Grilles, Registers & Diffusers
    • Commercial Products
    • Installation Tools & Supplies
  • Services
    • HVAC Ductwork Fabrication
    • Custom Ductwork Fabrication
    • Design & Consultation
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    • Commercial Ductwork
    • CNC Plasma Cutting
    • Sheet Metal Fabrication
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    • Pittsburgh
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Ductwork

Home / Products / Ductwork

Our ductwork products range from the standard stock duct to custom ducts and fittings fabricated to your specifications. Complete installations and repairs your way with everything you need to take your HVAC business to new heights. Hennemuth Metal Fabricators is your source for timely metal fabrication services in Pittsburgh, Pennsylvania, and the surrounding areas.

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. Install a new HVAC system in a home or perform maintenance and repairs inside a corporate building. We'll provide you with the resources you require for an impressive project turnaround.

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 also available. Let Hennemuth Metal Fabricators take care of all your ductwork needs.

Request a Quote

 

Rectangular Duct

We use Slip and Drive, four-bolt rectangular duct connectors, Snap Lock Duct and Pittsburgh Duct. Get the highest-quality rectangular ducts for professional jobs from HMF Duct. Our skilled team pays close attention to detail to make products excellent for systems positioned along ceilings and other flat surfaces. Our rectangular duct offerings require little maintenance, and they are economical to ship within our service area.

Find all the HVAC system parts you need for upkeep. HMF Duct sells elbows, return air boots, reducers, starting collars, end caps and other rectangular duct technology for your convenience.

TDF Duct (56inch Joint)

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

IMG_5336

Square Duct Hanger

Broadway 90

Broadway Elbow 90º

BW 45

Broadway Elbow 45º

Radius elbow

Shortway Elbow 90º

Rectangle Reducer (20x10-16x10)

Reducer
16" Length Drive / Drive

IMG_5333

General Return Air Boot
Designed to Fit
General Air Cleaners

IMG_5335

Return Air Boot
with Filter Rack

Rectangle End Cap

End Cap

Rectangle starting collar

Starting Collar
6" Long Flange / Drive

IMG_5334-scaled (1)

Filters

Call us at 724-693-9605

Spiral Duct Connectors & Fittings

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

Our spiral ductwork is popular for contractors because the products are effective for preventing leaks due to the shape of corresponding joints. Spiral duct setups are known for being quiet, as low-pressure drops result in fewer vibrations moving about a system. Connect sections of your HVAC system together using our spiral duct offerings available in 45- and 90-degree configurations.

Galvanized Spiral Pipe 2

Spiral Pipe

10inch galvaneal spiral

Spiral Pipe Paint Grip

Spiral Gored Elbow 2

90º Elbow
Stamped and Gored

Spiral Coupler 2

45º Elbow
Stamped and Gored

Spiral Reducers

Reducers

SpiralTee (2)

Spiral Tee

Spiral End Cap

End Caps

IMG_4819

Spiral Damper Sleeve

Spiral Bell Mouth

Spiral Bell Mouth

Spiral Saddle Tap

Spiral Saddle Taps

Spiral Coupler

Couplers

Up to 20"

Spiral HFC flange

Flange & Over ring

 

Universal Spiral Register

Universal Spiral Diffusers

Curved Spiral Register

Curved Spiral Diffusers 

Gripple

Gripple

 

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. HMF Duct has been working in the HVAC manufacturing field since 1954. We use our decades of experience in the business to create ductwork for virtually any space you need. We offer you competitive rates for ductwork that will fit perfectly on new or existing systems.

Not seeing what you're looking for? Call us directly at 724-693-9605 to get a conversation going. Our experts will further explain your options for custom ductwork fabrication services near Pittsburgh.

elbow plenum

Elbow Plenum

IMG_5335

Filter Boot

Riser

Rise / Drop

Broadway 90

Broadway Elbow

Raduis offset

Offset

Rectange Tee

Tee

IMG_5333

Air Cleaner Boot

Radius elbow

Shortway Elbow

Retangle Reducer 2 (20x10-16x10)

Reducer / Increaser

 

Flexible Duct & Ductwork Fittings Material

HMF Duct will provide you with flexible ductwork products appropriate for diverse environments. Whether you're working in tight spaces for an installation or you'd like to connect ducts between floors, you can purchase flexible ducts in 25-foot lengths from us. Pick up flexible duct products for high-pressure systems. We also provide you with options for acoustic and antimicrobial ducts to keep buildings quiet and clean.

Consider our flexible ductwork for sale for a smooth installation process and endless connection possibilities.

IMG_5342

25' Insulated Flex
R-6 and R-8 Metalized Jacket

Sealed ductwork materials bag

4" x 25' Insulated Flex
R-4.2

IMG_5345-scaled (1)

5' Sleeves
R-8 Metalized Jacket

IMG_5343

25' Uninsulated Flex
3" - 16"

IMG_5332

Flex Duct Ties
36", 48" and 60"

IMG_5331-scaled-e1628623349888 (1)

Flex Duct Cutter

 

IMG_5330-scaled (1)

Tensioning Tool

 

AMF-07 Insulated Flex

AMF Insulated Flex (Acoustical)
7' and 25' lengths

AMBlue Insulated Flex

AMBlue Insulated Flex (Antimicrobial)
25' lengths

25' Insulated Flex

High Pressure Insulated Flex
25' lengths

HVAC Duct Fittings & Connectors

We have the equipment and knowledge to help finish most ductwork projects. Our wide selection of ductwork fittings and connectors give you the parts needed to finish jobs. Our staff reviews any project blueprints you have to recommend stock or custom fittings for your efforts, so you know your purchases will fit correctly. We'll make sure your fittings and connectors are manufactured to your industry's standards. This includes codes set by the Sheet Metal and Air Conditioning Contractors' National Association (SMACNA).

Reasons to Choose HMF for Custom HVAC Ductwork in Pittsburgh

HMF Duct separates itself from competitors by providing stock and custom products for heating, ventilation and air conditioning contractors. All our staff members are friendly and will help you decide on the right solutions for your project, and we have a long history of working with residential and commercial contractors near Pittsburgh. Choose us for ductwork products to get our exclusive benefits:

  • Delivery options for local customers
  • An impressive list of products for any size job
  • Accurate estimates for contractors
  • Family-owned and operated business
  • Solutions that fit your budget

Duct Trapeze for Suspended Duct

Get a Quote for Our HVAC Duct Products Today

HMF Duct looks forward to assisting you. If you'd like to get a quote for any of our HVAC ducts or fittings, please fill out a form with us online.

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Shop Hours

Mon-Fri: 7:00am-3:30pm

Ready To Order?

By Phone: (724) 693-9605
By Fax: (724) 693-8965
Email: [email protected]

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