Custom Ductwork · Sheet Metal · In-House Shop

Custom Sheet Metal & Ductwork Fabrication in Northern NJ & NYC

Off-the-shelf ductwork doesn't always fit the space. ICS fabricates custom sheet metal ductwork in-house — precision-cut, right-sized, and built to match your HVAC design exactly — for homes and businesses across NJ and NYC.

Precision-Built In-House

Custom sheet metal ductwork fabricated and installed by one team.

12,000+Systems installed
30+Years of experience
300+Five-star reviews
10-20Yrs typical ductwork lifespan
Residential & commercial · fabricated to your design
In-House Sheet Metal Shop
Custom Circular & Rectangular Ductwork
Commercial & Residential
Design-Build Under One Roof
Why It Matters

Stock Ductwork Wasn't Built For Your Space

Every home and building is different — but a lot of ductwork isn't. Generic, off-the-shelf ducting gets forced into attics, mechanical rooms, and tight joist bays it was never designed for, and the performance suffers.

ICS fabricates ductwork in-house — cut, shaped, and assembled to the exact dimensions your space and system design call for. It's the difference between ductwork that fits and ductwork that was just made to fit close enough.

  • Ductwork that doesn't fit tight attics or mechanical rooms
  • Whistling, rattling, or leaking duct joints
  • Uneven airflow between rooms or floors
  • A commercial project that needs ductwork built to exact specs
Call (866) 749-6331

Why Fabricate With ICS

In-House Precision ShopCut, shaped & assembled with state-of-the-art machinery.
Galvanized Steel & MoreDurable materials matched to your application.
Design-Build AdvantageThe same team designs, fabricates & installs.
30+ Years of ExperienceHundreds of projects fabricated across NJ & NYC.
What We Fabricate

Custom Ductwork for Every Project

From a single custom transition piece to a full building's ductwork, ICS fabricates and installs residential, commercial, and industrial sheet metal across Northern New Jersey and New York City.

Custom Ductwork Design & Fabrication

Tailored ductwork for residential, commercial, and industrial environments, engineered around your space rather than a standard part number.

Circular & Rectangular Ductwork

We fabricate both circular and rectangular ductwork solutions, choosing the right profile for airflow, space, and system performance.

Commercial & Industrial Fabrication

Larger-scale sheet metal fabrication for commercial and industrial HVAC projects, built to code and project specifications.

Residential Ductwork Fabrication

Custom-fit ductwork for homes and additions, including replacements that finally correct ducting that was never sized right.

System Integration & Retrofits

New fabricated ductwork integrated seamlessly with your existing HVAC infrastructure, minimizing disruption to your space.

Ongoing Support & Maintenance

Post-installation monitoring and maintenance to keep fabricated ductwork sealed, efficient, and performing for the long haul.

Why Choose ICS

Fabricated Right, Not Just Fitted

The equipment gets the attention — but the ductwork moving the air is just as important. Here's what sets ICS fabrication apart.

State-of-the-Art Shop

Precision cutting and shaping equipment, all in-house.

Built to Your Design

Fabricated to exact HVAC design specs, not a generic size.

Durable Materials

Galvanized steel, aluminum & fiberglass options, matched to the job.

Design-Build, One Team

The people who design your system also fabricate and install it.

How It Works

Our Fabrication Process

1

Design & Planning

We calculate sizing and routing based on your HVAC design and the space available.

2

Material Selection

Galvanized steel, aluminum, or fiberglass, chosen for your application and environment.

3

Cutting, Shaping & Assembly

Precision machinery cuts and shapes each piece; assembly uses folding, welding, or fasteners.

4

Inspection & Installation

Every run is quality-checked against performance standards, then installed and integrated with your system.

Ready for Ductwork Built Right?

Get a free estimate for custom sheet metal fabrication — residential, commercial, or industrial — across Northern NJ and NYC.

Good Questions

Sheet Metal Fabrication FAQs

What is sheet metal fabrication and why does it matter for HVAC?

Sheet metal fabrication is the cutting, shaping, and assembling of metal ductwork to fit your exact space and airflow needs. Off-the-shelf ducting rarely fits tight attics, mechanical rooms, or unusual layouts perfectly — custom-fabricated ductwork does, which means better airflow, less energy loss, and a quieter system.

How long does ductwork last?

Properly fabricated and installed ductwork typically lasts 10 to 20 years, depending on the material used, installation quality, and environmental conditions. Galvanized steel — our most common material — holds up especially well against corrosion and high temperatures.

What material do you use for ductwork?

Galvanized steel is our go-to for most projects because of its durability, corrosion resistance, and ability to handle high temperatures. We also fabricate with aluminum and fiberglass depending on the application, budget, and space.

Do you fabricate custom ductwork, or just install standard sizes?

We fabricate custom — circular and rectangular ductwork cut and shaped in-house to your exact HVAC design, not pulled off a shelf. That's what lets us fit ductwork into tight spaces and match the airflow calculations from your system design precisely.

Can you fabricate ductwork for commercial and industrial projects?

Yes. Alongside residential work, ICS fabricates sheet metal ductwork for commercial and industrial HVAC projects across Northern NJ and NYC, built to the specs and code requirements each project demands.

How does the fabrication process work?

It starts with design and planning — calculating sizing and routing — followed by material selection, precision cutting and shaping, assembly (folding, welding, or fastening), quality inspection and testing against performance standards, and finally installation and integration with your existing system.

Will fabrication and installation disrupt my home or business?

We plan every project to minimize disruption to your daily activities, whether that's a household routine or business operations. Most of the precision work happens in our shop before installation day, which keeps on-site time and mess to a minimum.

Do you provide sheet metal fabrication in NYC and all of Northern NJ?

Yes. ICS fabricates and installs custom ductwork in New York City and Bergen, Essex, Hudson, Morris, Passaic, Union, Sussex, and Warren counties in New Jersey, for both homes and businesses.

Where We Work

Sheet Metal Fabrication Service Areas

Custom ductwork fabrication and installation across Northern New Jersey and New York City.

Have a Question?

Let Us Know How We Can Help

Request a free fabrication estimate and our team will get right back to you — or call us anytime.

(866) 749-6331Call or text for a free estimate
mail@icshvac.comEmail our team
Carlstadt (Main)736 Gotham Parkway, Carlstadt, NJ 07072
Belleville267 Cortlandt Street, Belleville, NJ 07109
Englewood Cliffs120 Charlotte Place, Suite 201, Englewood Cliffs, NJ 07632
Licensed & InsuredHVACR Contractors License #19HC00444000