Commercial Sheet Metal Fabrication and Installation
When it comes to commercial HVAC systems, the ductwork is the backbone of the entire operation. At Mel's Heat & Air Inc., we specialize in custom commercial sheet metal fabrication and installation designed to move air efficiently, quietly, and reliably through buildings of all sizes. From small storefronts to large warehouses, office complexes, restaurants, and industrial facilities throughout Turlock, CA and surrounding areas, our sheet metal work is built to perform under the demanding conditions that commercial environments require.
Sheet metal isn’t a one-size-fits-all material. The thickness, alloy, sealing method, and reinforcement all depend on the specific application. A restaurant kitchen exhaust system has dramatically different requirements than a clean office HVAC return. We take the time to engineer each ductwork system around the actual airflow needs, building layout, and operational demands of the space we’re working in.
Custom Fabrication for Every Project
Off-the-shelf ductwork rarely fits commercial buildings perfectly. Older structures have quirky framing, modern builds have tight ceiling cavities packed with sprinklers and conduit, and renovations almost always require pieces that bend, taper, or transition in ways no warehouse stocks. That’s why custom fabrication is so important to what we do. We produce ducts, plenums, transitions, elbows, offsets, and specialty fittings tailored to your exact specifications.
Our work includes galvanized steel, stainless steel, and aluminum sheet metal in a range of gauges suited to the pressure class and application. Whether the job calls for rectangular duct, round spiral duct, flat oval, or double-wall insulated systems, we have the experience to build it to SMACNA standards. Properly fabricated sheet metal reduces air leakage, lowers energy costs, and extends the life of the connected HVAC equipment.
Applications We Handle
Commercial sheet metal work covers a remarkably broad range of needs. Over the years we’ve fabricated and installed systems for many different building types and uses. Each one comes with its own pressure requirements, code considerations, and operational priorities.
- Restaurant exhaust hoods and grease ducts built to NFPA 96 standards with welded liquid-tight seams to safely vent cooking byproducts
- Office building supply and return ductwork engineered for balanced airflow and quiet operation in occupied workspaces
- Warehouse and industrial ventilation using heavy-gauge spiral duct to move large volumes of air through expansive open buildings
- Medical and laboratory exhaust systems fabricated with stainless steel where corrosion resistance and contamination control matter
- Retail rooftop unit connections including curb adapters, flex connectors, and supply plenums sized to manufacturer specifications
- Dust collection and process exhaust for manufacturing facilities that need reliable removal of airborne particulates
Why Quality Sheet Metal Work Matters
Poorly fabricated ductwork is one of the most common reasons commercial HVAC systems underperform. Leaky seams, undersized runs, sharp transitions, and inadequate support all rob the system of efficiency. A 20 percent leakage rate isn’t unusual in low-quality installations, and that translates directly to higher utility bills, hot and cold spots throughout the building, and equipment that runs longer and wears out faster.
We treat ductwork as the precision component it actually is. Seams are sealed with mastic or gasketed connectors, hangers are spaced according to load calculations, and turns are designed with proper radius or turning vanes to minimize static pressure loss. When the ductwork is right, the whole system breathes easier, runs quieter, and lasts longer.
Service, Repair, and Retrofit Work
Not every job is new construction. A large portion of our commercial sheet metal work involves retrofitting existing buildings, repairing damaged duct runs, modifying systems to accommodate tenant build-outs, or replacing aging ductwork that’s no longer sealing properly. We service and install equipment from all the major manufacturers including American Standard, Mitsubishi, Bryant, and Mr. Cool, and we make sure the ductwork connecting to that equipment is just as dependable as the units themselves.
Commercial buildings can’t afford to be down for long, which is why we offer 24 hour emergency service. When a duct collapses, an exhaust system fails inspection, or a kitchen hood stops drawing properly, we’re ready to respond. Our technicians arrive on time, work cleanly around your operations, and quote pricing up front so you always know what to expect.
For commercial sheet metal that’s built to last and installed by people who care about the craft, Mel's Heat & Air Inc. is ready to put our experience to work on your project, no matter the size or complexity.