Industrial
Dust collection systems, ventilation for mining-sector facilities, and process exhaust ductwork built to handle demanding industrial conditions. Industrial work is roughly half of what we do.
Custom Ductwork · Timmins + Northern Ontario
Sheet Metal Fabrication & Custom Ductwork in Timmins
Ironclad Mechanical provides custom sheet metal fabrication and ductwork services throughout Timmins and Northern Ontario. With 20+ years of trade experience, we design, fabricate, and install custom ductwork for residential, commercial, and industrial HVAC systems. Whether you need custom duct runs for a new build, replacement ductwork for an aging system, or specialized fabrication for industrial applications, we deliver precise, locally fabricated solutions that meet the demands of Northern Ontario's climate.
- TSSA Licensed
- WSIB Insured
- 20+ Years
- 20+ yrs in the trade
- 300 km service radius
- 2 trucks / 2 techs
- TSSA + WSIB
The Basics
What Is Custom Sheet Metal Fabrication?
Sheet metal fabrication is the process of cutting, bending, and assembling flat metal sheets into custom ductwork and HVAC components. Instead of pulling standard parts off a shelf, we build each duct run, transition, and fitting to the exact dimensions a building calls for. It is one of the core HVAC and mechanical services we provide across the region.
Most ductwork is galvanized steel, which resists corrosion and suits the majority of residential and commercial systems. Aluminum is a lightweight alternative for specific applications, and stainless steel handles corrosive environments and specialized industrial use. The right material depends on the job.
The difference between custom fabrication and off-the-shelf ductwork comes down to fit. Standard components force a layout to bend around them. Custom fabrication does the opposite: the ductwork is shaped to the building. That matters in Northern Ontario, where unique layouts, retrofit challenges, and a harsh climate put real demands on a system that off-the-shelf parts were never sized to meet.
What custom fabrication covers
- Cutting flat metal sheets to precise dimensions
- Bending and forming custom duct sections
- Assembling seams, joints, and fittings
- Galvanized steel, aluminum, and stainless options
- Built to your building’s exact layout
- Sized for Northern Ontario climate demands
Applications
Custom Ductwork Applications We Serve
From mining-sector ventilation to a single retrofit duct run, our work spans industrial, commercial, and residential projects across Timmins and Northern Ontario.
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Commercial
Retail HVAC systems, office buildings, and school-board facilities, including the dust-collector ductwork those shops and classrooms rely on for clean, healthy air.
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Residential
Custom duct runs for renovations, new-construction ductwork paired with our furnace installation work, and zoning-system modifications that keep every room comfortable.
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Specialized Fabrication
Transitions, reducers, elbows, plenums, and one-off custom fittings made to solve the installation challenges that off-the-shelf parts cannot.
Our project mix runs about 50% industrial and 30% commercial, with the remaining 20% residential, so we move comfortably between large-scale ventilation systems and the precise duct runs a single home needs. That range means we have solved the kind of problem your project is likely to present before.
On the residential side, new-construction ductwork is often fabricated alongside the heating system itself. When we are building duct runs for a new home, we coordinate them with our furnace installation work so the airflow, sizing, and equipment all match from the start.
The Process
Our Sheet Metal Fabrication Process
Every project moves through the same disciplined sequence, from the first site visit to a commissioned system that performs.
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Consultation and site assessment
We start on site to understand the project: the space we are working in, the existing system, access constraints, and what the finished ductwork has to do. This is where the real requirements come to light.
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Design and measurement
We create precise specifications for your custom ductwork, taking exact measurements so every transition, run, and fitting is sized for the space rather than forced to fit.
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Fabrication
We cut, bend, and assemble the components to those exact specifications in the shop, building duct sections and fittings to match the design with tight tolerances.
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Quality inspection
Before anything leaves for the job site, we check that seams, joints, and connections meet code and performance standards, so the ductwork seals and performs the way it should.
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Installation
Our team installs the fabricated ductwork and integrates it with your new or existing HVAC system, supporting and sealing every run properly along the way.
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Testing and commissioning
We verify airflow, confirm the system is sealed, and check overall performance, so you know the finished installation does its job before we call it complete.
Measuring and design are where a custom job is won or lost. A run that is off by a fraction forces compromises down the line, so we take the time to get the numbers right before a single sheet is cut. Precise measurement is what lets the finished ductwork fit cleanly and seal properly.
Because we handle fabrication and installation as one team, nothing gets lost in a handoff. The people who measured and built your ductwork are the ones who install and commission it, which keeps quality consistent from the shop floor to the finished system.
Local Advantage
Why Choose Local Fabrication in Timmins?
Custom ductwork can be ordered from a shop in southern Ontario or out of province, but fabricating it here changes what the project can do. When the metal is cut and formed locally, you are not waiting on a shipment to start or to fix a problem, and the turnaround stays measured in days rather than weeks.
Field conditions rarely match the drawing exactly. Fabricating in Timmins means we can adjust a design on the spot when a wall, a beam, or an existing run is not where it was supposed to be. We also know what a Timmins winter asks of ductwork, so the design accounts for the climate it has to live in.
You work directly with the same team that fabricates and installs, with no middleman relaying messages, and the work keeps fabrication dollars in the local economy.
What local fabrication gives you
- Faster turnaround with no waiting on out-of-province shipments
- On-site adjustments when field conditions change
- Climate-specific knowledge of Timmins winters
- Direct communication with the fabricator and installer
- Fabrication dollars stay in the Timmins economy
Materials + Standards
Materials and Standards We Work With
The right metal, the right gauge, and code-compliant construction are what separate ductwork that lasts from ductwork that leaks.
Materials We Work With
- Galvanized steel, the standard for most HVAC ductwork
- Aluminum, a lightweight option for specific applications
- Stainless steel for corrosive or specialized industrial use
- Gauge selected by duct size, pressure class, and application
Standards We Meet
- Compliance with TSSA regulations
- Ontario Building Code requirements
- Proper sealing for air-tight performance
- Insulation that meets energy-efficiency standards
Material choice follows the application. Galvanized steel covers most residential and commercial HVAC work, aluminum suits lightweight or specialized runs, and stainless steel stands up to corrosive environments and demanding industrial settings. Within each material, the gauge is chosen for the duct size, pressure class, and the load the run has to carry, because a duct that is too thin distorts and one that is too heavy wastes material.
Every job is built to meet TSSA regulations and Ontario Building Code requirements, with seams and joints sealed for air-tight performance and insulation added where it is needed to meet energy-efficiency standards. Doing it to code is not the finish line, it is the baseline we start from.
Common Projects
Common Custom Ductwork Projects in Timmins
Some projects come up again and again. Older homes adding central air conditioning often need retrofit ductwork threaded through finished spaces, and new construction calls for custom trunk lines and branch ducts sized to the home from day one.
Equipment upgrades drive a lot of duct work too. Many heat pump installations move more air than the furnace they replace, so the ductwork has to be modified to keep up. On the larger end, we build industrial ventilation runs, dust collection systems for schools and shops, and replacement sections for ductwork that has corroded or been damaged.
- Retrofit ductwork for older homes adding central air conditioning
- Custom trunk lines and branch ducts for new construction
- Duct modifications for heat pump installations with higher airflow needs
- Industrial ventilation ductwork for workshops and warehouses
- Dust collection duct systems for schools and commercial shops
- Replacement ductwork for corroded or damaged sections
Performance
How Custom Ductwork Improves HVAC Performance
Ductwork is the part of an HVAC system nobody sees, and it quietly decides how well the equipment performs. When ducts are sized correctly, sealed tightly, and routed with smooth transitions, conditioned air reaches every room at the temperature it left the furnace or heat pump.
Leaky ducts are the silent waste in many homes. Air that escapes through unsealed seams and joints in unconditioned spaces never does its job, and the system runs longer and costs more to make up for it. Custom fabrication closes those gaps by building ductwork that fits and seals from the start.
20-30%
of conditioned air wasted by leaky ductwork
- Proper sizing reduces static pressure and improves airflow
- Sealed seams and joints prevent costly air leakage
- Smooth transitions and minimal bends cut turbulence and noise
- Insulated runs in cold spaces prevent heat loss and condensation
- Balanced design delivers even heating and cooling room to room
- Custom fittings remove the compromises of off-the-shelf parts
Working With Us
What to Expect When You Work With Us
From the first call to the final walkthrough, the process is straightforward and you always know where things stand. You get a clear quote and timeline before any work begins, and one accountable team carries the project from design through testing.
Most residential and small commercial projects run one to two weeks from approval to completion, depending on complexity and scheduling. Larger industrial jobs take longer, and we give you a realistic timeline up front rather than an optimistic one.
1-2 WEEKS
typical turnaround, approval to completion
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Initial contact
Call (705) 221-0677 to talk through your project and schedule a site visit.
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Site assessment
We measure the space, assess existing systems, and identify any installation challenges.
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Quote and timeline
You receive a detailed quote and an estimated project timeline before any work begins.
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Fabrication
We fabricate your custom ductwork to specification in the shop.
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Installation
Our team installs the ductwork and integrates it with your HVAC system.
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Final walkthrough
We test the system, verify performance, and answer any questions you have.
Service Area
Sheet Metal Fabrication Service Areas
Ironclad Mechanical serves Timmins and Northern Ontario communities within a 300 km radius. Our primary service area covers Timmins, South Porcupine, and Schumacher, and we regularly serve Cochrane, Kapuskasing, Kirkland Lake, Hearst, and Smooth Rock Falls. Our base in Porcupine, plus two trucks and technicians, keeps fabrication and installation responsive across the region, and we will travel further for the right project. Call (705) 221-0677 to confirm availability in your area.
- Timmins
- South Porcupine
- Schumacher
- Porcupine
- Cochrane
- Kapuskasing
- Kirkland Lake
- Hearst
- Smooth Rock Falls
- Chapleau
- New Liskeard
Why Ironclad
Why Choose Ironclad Mechanical for Sheet Metal Fabrication
Ironclad Mechanical is a small, independent contractor built to operate like a family, providing reliable work at reasonable prices. The 20+ years of trade experience behind the business shows in the fabrication: precise measurements, clean seams, and ductwork that fits and seals the way it should.
We are TSSA licensed and WSIB insured, and we carry general liability coverage along with Working at Heights, WHMIS, and MOL Workers Safety certifications. As an independent contractor and not a franchise, our decisions are made locally and we are accountable to the community we serve.
With a project mix of roughly 50% industrial, 30% commercial, and 20% residential, we move comfortably across the full range of ductwork work, and we handle design, fabrication, and installation as one team so the quality stays consistent from the shop floor to the finished system.
Credentials
- 20+ years of trade experience in ownership
- TSSA licensed (Technical Standards and Safety Authority)
- General liability and WSIB insurance
- Working at Heights, WHMIS, and MOL Workers Safety certifications
- Independent contractor serving Timmins and Northern Ontario
- Two-technician team operating two service trucks
- Service area: Timmins, South Porcupine, Schumacher, and surrounding Northern Ontario within a 300 km radius
- 50% industrial, 30% commercial, 20% residential revenue mix demonstrates broad project experience
FAQ
Frequently asked questions.
Need custom ductwork for your Timmins project?
Call dispatch at (705) 221-0677 or request a site assessment today.