Sheet Metal Fabrication Winnipeg, MB
Expert Sheet Metal Fabrication Services
Custom sheet metal fabrication is the structural backbone of a properly balanced HVAC system. No matter how efficient a furnace or air conditioner is rated by the manufacturer, it cannot deliver that performance through ductwork that is incorrectly sized, poorly fitted, or leaking at every joint. Brown’s Plumbing and Heating operates an in-house sheet metal shop serving residential and light commercial customers across Winnipeg, Steinbach, and Morris. We have been fabricating custom ductwork since 1974, and that capability is rare among independent HVAC contractors in Manitoba.
Why Custom Fabrication Outperforms Off-the-Shelf Ductwork
Pre-fabricated round duct purchased at a home improvement store is designed for generic residential applications at minimal cost. It is round when most mechanical rooms and finished basements require rectangular or oval profiles to fit within wall and ceiling cavities. The joints are not sealed, meaning conditioned air leaks into wall cavities before it reaches the rooms it was intended to heat or cool.
A custom fabricated duct system sized and shaped to your specific home layout eliminates pressure drops caused by overly tight bends, reduces blower noise caused by turbulent airflow in undersized duct sections, and ensures balanced delivery to every room. In older Winnipeg homes where the original ductwork was sized for lower-efficiency equipment operating at different static pressures, custom fabrication during a furnace replacement can improve system performance significantly beyond what the new equipment rating alone would suggest.
What Brown’s Sheet Metal Shop Fabricates
Custom supply and return air ducts for new residential construction and renovation projects where off-the-shelf sizes and shapes do not fit the specific layout
Transitions, offsets, and elbows for tight mechanical rooms, low-ceiling spaces, and awkward structural configurations in older Winnipeg homes
Bathroom and dryer exhaust ducting fabricated to exact run lengths and termination requirements
Range hood and kitchen exhaust ductwork including grease-resistant lined duct for commercial-grade residential kitchen installations
Custom plenums for furnace and air handler supply and return connections
Duct modifications for new equipment installation when a replacement furnace or air conditioner uses a different cabinet size or airflow orientation than the original unit
Duct Sealing and Insulation
Fabrication alone is not enough if the assembled system is not properly sealed and insulated. Brown’s seals all duct joints with UL-listed mastic compound or metal tape rather than standard duct tape, which degrades and fails within a few years in the temperature extremes of a Manitoba mechanical room. Supply ducts running through unheated spaces such as garages, crawl spaces, or unconditioned attics are insulated to current Manitoba code requirements to prevent heat loss and condensation.
Light Commercial Sheet Metal
Brown’s serves light commercial clients in Winnipeg including restaurants, retail spaces, and small office buildings. We fabricate custom kitchen exhaust hoods, commercial make-up air plenums, duct transitions for rooftop unit connections, and duct modifications to meet Manitoba fire code and ventilation bylaw requirements. Our commercial sheet metal work is fabricated in-shop and installed by our own technicians, eliminating coordination delays between separate fabrication and installation contractors.
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Frequently Asked Questions
What is sheet metal fabrication in HVAC?
It’s the process of custom-making ductwork and fittings that optimize airflow in heating and cooling systems.
Do you fabricate custom ductwork for homes and businesses?
Yes, we design and build custom sheet metal components for residential and commercial HVAC systems.
What materials do you use?
We use galvanized steel and aluminum for long-lasting durability and performance.
Can custom ductwork improve efficiency?
Absolutely. Properly sized ducts reduce air leaks and improve system performance.
How long does it take to fabricate custom HVAC ductwork for a Winnipeg home?
Simple duct modifications for a furnace replacement are typically fabricated same-day or next-day at Brown’s in-house shop. More complex new construction or renovation ductwork systems require a site measurement visit followed by a fabrication timeline based on scope, typically two to five business days.