Fabrication & Manufacturing

What We Do

Sigma’s AISC-certified shops pair CNC and robotic cutting, fitting, and welding with an experienced operations team to deliver high-quality helical piles, caps, and structural components—fast. From standard stock to custom builds, we scale production without compromising performance.

Core Capabilities

• Helical piling & caps: Custom-engineered and fabricated; pipe piles up to large diameters with multi-helix configurations.
• Standard stocked parts: Square tube leads, extensions, fixed/adjustable caps, and round pipe components for rapid deployment.
• Structural steel fabrication: In-house blasting and coating options to meet project specs.

Process & Quality

• Precision fabrication: CNC profiling and robotic welding for consistent geometry and repeatability.
• Certified quality: AISC Certified Fabricator procedures, material traceability, and documented inspections.
• Throughput you can count on: Automated workflows + skilled welders = short lead times and reliable schedules.

Materials & Coatings

Carbon steel grades to spec with optional shop blasting and paint systems; galvanized and specialty coatings available per project requirements.

Delivery Options

Choose in-stock standard components for immediate needs, or engage our team for project-specific fabrication—both supported by responsive logistics across North America.