Our Capabilities
Signal Houses & Enclosures
Serrmi designs and manufactures signal houses, equipment enclosures, and instrument cases for rail, transit, power, and industrial applications. Each build is developed around customer drawings, equipment layouts, access requirements, material selections, and long-term field performance.
Signal Structures
Serrmi fabricates cantilevers, signal bridges, access platforms, and related structures for crossing, wayside, and field applications. Every structure is engineered around project loads, installation conditions, maintainer access, and dependable performance in active rail environments.
Site Infrastructure Support
Serrmi provides foundation and site-support systems for critical equipment installations. Capabilities include precast and helical foundations, retention walls, and various structural support solutions developed around grade changes, site access, equipment placement, and project-specific loading requirements.
Signal Components
Serrmi manufactures and supplies components that support rail signaling, communication, detection, and maintenance systems. From field enclosures and switch machine hardware to load-detection equipment, each product is built for dependable operation and long-term service in demanding environments.
Power, Batteries & Lighting
Serrmi provides battery systems, solar-backed signal power, and locomotive LED lighting for rail and field operations, helping customers maintain dependable power, improve visibility, reduce maintenance demands, and keep critical systems operating reliably.
Data Centers
Serrmi supports modular data center and power infrastructure through OEM steel fabrication for substations, power skids, and custom enclosures. Each build is developed from customer drawings and coordinated around access, penetrations, lift points, service zones, transportation, and equipment integration.
Custom Engineering
Expert Support From Concept to Production
Serrmi supports projects from early concepts through build-ready drawings, helping customers turn requirements into accurate, production-ready solutions. Our engineering team works through the details before fabrication begins, including digital models, electrical and structural requirements, documentation, and field installation needs.
CAD Development
BOM Creation
Electrical Schematics
3D Modeling
Prototyping
Mechanical Problem Solving
R&D
Manufacturing Capabilties
Built In-House From Start to Finish
Serrmi brings fabrication, machining, forming, finishing, and assembly together to support complex, production-ready work. With the equipment, space, and experience to manage more steps in-house, our team helps customers reduce handoffs, improve consistency, and move projects forward with greater control.
Automated Laser Cutting
Plasma Cutting
Punching & Engraving
CNC Router
Wire Grid Fabrication
3D Wire Bending
4-Axis Horizontal CNC MillI
3-Axis Vertical Mill
CNC Lathe
Powder Coating
Markets We Serve
Manufacturing Across
Diverse Industries
Serrmi brings engineering, fabrication, and manufacturing expertise to a wide range of industries, delivering dependable solutions built around each project’s unique requirements.
Rail and Transit
Signal enclosures, equipment cases, and support structures built for demanding transportation environments.
Data Centers
Modular infrastructure and secure enclosures designed for uptime, scalability, and thermal performance.
Power and Energy
Engineered solutions for substations, switchgear, and critical control systems.
Telecommunications
Weather resistant enclosures and skids for fiber, wireless, and network equipment.
Industrial and Utility
Custom platforms that protect critical medium and low voltage equipment in harsh environments.