Expert Sheet Metal Fabrication Services

At Thorsen’s-Norquist , we deliver precision sheet metal fabrication that meets the demanding requirements of commercial, industrial, and residential projects throughout Modesto, Turlock, CA, and surrounding areas. Sheet metal fabrication is a cornerstone of modern construction and HVAC systems, involving the transformation of flat metal sheets into functional components through cutting, bending, forming, and assembly processes. Our skilled fabricators bring decades of combined experience to every project, ensuring that each piece we produce meets exact specifications and performs reliably for years to come.

The global sheet metal fabrication market continues to grow significantly, driven by increased construction activity and the demand for energy-efficient building systems. As building codes become more stringent and designs more complex, the need for custom-fabricated sheet metal components has never been greater. We serve customers in Modesto and Turlock, CA and surrounding communities, providing fabrication solutions that range from standard ductwork to highly specialized architectural elements and industrial ventilation components.

Our Fabrication Processes and Capabilities

Sheet metal fabrication encompasses a wide range of processes, each requiring specific expertise and equipment. We utilize plasma cutting, shearing, and CNC-driven equipment to achieve clean, precise cuts on materials ranging from 26-gauge lightweight aluminum to heavy 10-gauge galvanized steel and stainless steel. Once cut to size, sheets are formed using press brakes, rollers, and specialized forming tools that shape the metal into ducts, plenums, transitions, fittings, and custom architectural pieces.

Our fabrication workflow begins with careful measurement and planning. We make it a point to go over any details or limitations of the proposed system that will affect your enjoyment of the end result. This upfront communication ensures that every fabricated component integrates seamlessly into the larger system. From initial layout through final assembly, our team follows strict quality control procedures that include dimensional verification, seam integrity checks, and leak testing for ductwork applications. Seams are joined through methods including Pittsburgh locks, snap locks, TIG welding, and spot welding depending on the application requirements and material type.

Applications Across Industries

Sheet metal fabrication supports an enormous variety of real-world applications. In HVAC systems, fabricated ductwork distributes conditioned air throughout commercial buildings, hospitals, schools, and manufacturing facilities. Custom plenums and transitions are essential where standard off-the-shelf components simply cannot accommodate unique architectural layouts or airflow requirements. Industrial exhaust systems require specialized fabrication using corrosion-resistant materials designed to handle harsh chemical environments and extreme temperatures.

Beyond HVAC, our fabrication capabilities extend to architectural sheet metal work including custom flashings, copings, wall panels, and decorative elements. Restaurant and commercial kitchen ventilation hoods demand precise fabrication using stainless steel to meet health code requirements. Each of these applications requires specific material selections, gauge thicknesses, and joining techniques that our team expertly manages from start to finish.

Materials We Work With

Selecting the right material is critical to the performance and longevity of any fabricated component. We work with a comprehensive range of sheet metals suited to different environments and performance criteria.

• Galvanized steel is the most common material for standard HVAC ductwork, offering excellent corrosion resistance and structural integrity at practical cost points
• Stainless steel is specified for food service, medical, and chemical processing environments where hygiene and corrosion resistance are paramount
• Aluminum provides a lightweight option ideal for exterior applications, marine environments, and projects where weight reduction matters
• Copper and brass are selected for specialized architectural and decorative applications requiring distinctive visual appeal and natural patina development

We pledge to always tell you up front what your cost will be to complete your job correctly. Material selection significantly impacts project budgets, and we work closely with our customers to identify the optimal balance between performance requirements and cost efficiency.

Quality Commitment and Customer Trust

Precision fabrication demands attention to tolerances that are often measured in fractions of an inch. Our fabrication shop maintains calibrated equipment and employs experienced technicians who understand that even minor deviations can cause installation problems, air leaks, or structural failures in the field. Every component undergoes thorough inspection before leaving our facility.

We take our responsibility very seriously when you place your trust in us. Whether you need a single custom fitting for a retrofit project or hundreds of duct sections for a new commercial building, we apply the same level of care and precision. Our team at Thorsen’s-Norquist works with contractors, engineers, and building owners in Modesto and Turlock, CA to deliver fabrication solutions that perform exactly as intended. From concept through completion, our goal is to provide sheet metal components that install efficiently, function flawlessly, and stand the test of time in every application we serve.