Integrated Electro-Mechanical Solutions:

From Line to Load

Providing 24/7 emergency motor repair, pump service,
and predictive maintenance for critical infrastructure
throughout the Northeast and beyond.

Downtime Is Expensive. We Help Prevent It.

Industrial equipment, repair, and technical expertise when you need it most.

The Longo Advantage means trusted expertise, responsive service, and reliable performance that help critical infrastructure and industrial operations run efficiently, safely, and continuously.

Founded in a basement in Morristown, New Jersey, Longo has grown into the Northeast’s premier partner for large-scale industrial equipment repair, maintenance, and engineering services.

From NYC ferries to massive facility fan walls, Longo helps keep critical operations running at peak performance.

Why Leading Industries Choose Longo for Electro-Mechanical Solutions

With more than 75 years of experience, there’s little Longo hasn’t encountered in the field. Our team manages every aspect of keeping your industrial systems operating at peak performance, including power distribution, controls, switchgear, motors, pumps, fans, installation, repair, testing, and ongoing maintenance. Through our line-to-load approach, we don’t just repair individual components—we optimize entire power systems for long-term reliability, efficiency, and performance.

Dedicated Winding Area

Complete Testing Facility

Intricate Balancing Station

Extensive Machine Shop Service & Part Re-Engineering

State-of-the-Art Vacuum Impregnation (VPI) System

Comprehensive Field Service Support

Comprehensive Industrial Electrical Repair & Mechanical Rebuilding

Industrial Motor & Pump Rebuilding

Longo provides industrial motor and pump rebuilding services backed by advanced capabilities, including a dedicated winding area and Vacuum Pressure Impregnation (VPI) system with Temperflex® resin for enhanced insulation, durability, and performance.

Switchgear & Control Systems

Longo provides complete “line to load” switchgear and control system solutions, including testing, diagnostics, repair, replacement, and power distribution services for safe, reliable industrial operations.

Predictive Maintenance & Reliability

Longo’s predictive maintenance services use vibration analysis, infrared thermography, oil analysis, electrical testing, and condition monitoring to detect issues early and prevent equipment failure before it happens.

Technical Field Services: Support When and Where You Need It

We are the largest independent, family-owned electrical-mechanical business in the Northeast, providing unmatched expertise across the U.S. and internationally, supported by facilities in NJ, NYC, and Philadelphia. Our 24/7 emergency response team delivers fast, on-site service for critical breakdowns and multi-ton equipment repairs to keep operations running smoothly.

Ready to Optimize Your Electro-Mechanical Solutions?