Spencer Brown, President For over six decades, Demco has been a trusted partner in electric motor repair and industrial apparatus restoration, backed by deep mechanical expertise and family-rooted dedication. Founded in 1958 and now led by its third generation, its enduring success is anchored in craftsmanship, integrity and continuous innovation. Every repair is handled in-house by a tight-knit team with over 300 years of combined experience, delivering solutions that exceed customer expectations.

Demco’s full-service capabilities span electric motors, pumps, generators, gearboxes and VFDs. Every project is executed with meticulous care and personal accountability, from reconditioning and complete overhauls to rotor balancing and shaft repairs. This hands-on approach continues to fuel its reputation across a 400- mile radius and beyond.
“We stand as a proven resource devoted to keeping client operations running flawlessly, today and for generations to come,” says Spencer Brown, president.
Delivering Long-Lasting Service and Quality
Differentiating Demco from others in the market is its relentless pursuit to advance repair capabilities and push technical boundaries. Rather than racing against the clock, it prioritizes the quality of every repair, operating as a well-oiled machine known for long-lasting results. To support this focus on longevity, Demco conducts R&D on various materials in its machine shop, enabling each repair to achieve a life cycle that surpasses typical warranty periods.
Demco offers comprehensive capabilities across all major rotating equipment systems. Its fully equipped machine shop expertly fabricates shafts and obsolete OEM parts, ensuring even the most unique components are restored to original specifications. The dedicated rewind team of specialists is capable of handling AC/DC motors up to 3,000 HP at 6600VAC, using procedures that work in parallel with Electrical Apparatus Service Association standards.
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We stand as a proven resource devoted to keeping client operations running flawlessly, today and for generations to come.
Each repair begins with a deep understanding of client needs and a careful investigation into the root cause of failure. Technicians ask the right, leading questions, examine the full picture to deliver tailored, long-lasting solutions.
Demco ensures every rotating equipment is flawlessly balanced to the exacting G1 tolerance. Whether an electric motor, pump or generator over 50 HP or a component that’s undergone machining, the team mandates precision balancing to eliminate vibration and maximize reliability. It repairs almost all brands and types of pumps, including centrifugal, submersible, split case and diaphragm models. Specialists also handle large-scale fans up to 10 ft. in diameter, including industrial dryer fans. Demco’s upgraded computerized dynamic balancing underpins its capabilities, allowing it to balance client equipment more efficiently— up to 10,000 lbs.
In one instance, the team rebuilt an obsolete three-stage vertical turbine pump from the 1970s measuring over 32 feet in length by manufacturing new shafts, couplings, bearings, stuffing boxes, lantern rings and packing glands. It also partnered with a 3D-printing shop to remanufacture the damaged impellers. The outcome was a seamless restoration that returned the vintage workhorse to peak performance, saving the customer from having to invest in a completely new pump and motor.
Demco also took a standard 150 HP 444T 1800 RPM motor, rewound it to 75/37.5 HP at 1785/888 RPM, and replaced the shaft for an OEM application. This reduced the OEM’s estimated 18–22-week lead time to just two weeks. These real-world examples reflect not just Demco’s technical versatility but also its value in helping clients extend asset life and reduce capital spend.
Demco is embarking on a 9,000 sq. ft. facility expansion. The facility is slated to elevate lifting and crane capacities, ceiling height, and shop square footage by over 50 percent. This makes way for more advanced motor repair capabilities and accommodates a greater volume of work. As Demco prepares for the future, it remains laser-focused on the same promise that has earned it industry-wide respect: delivering precision-driven, in-house repairs that help clients keep moving, generation after generation.
Evaluating Electrical Motor Repair Partners for Long-Term Equipment Reliability
Industrial operations rarely fail because of a single catastrophic event; more often, performance declines quietly through imbalance, misalignment or inadequate repair practices that shorten equipment life. For executives responsible for electrical motor repair services, the challenge lies in identifying partners who do not treat repairs as transactional fixes but as interventions that restore long-term stability across rotating equipment.
One defining signal of a capable repair partner is the ability to maintain precision across the full repair cycle rather than addressing isolated symptoms. Electrical motors, pumps and generators operate within extremely tight tolerances, where even slight imbalance can introduce vibration, accelerate wear and compromise downstream systems. A provider that integrates machining, rewinding and balancing within one controlled environment reduces the risk of cumulative error. This continuity ensures that each intervention is informed by the last, rather than fragmented across multiple vendors with inconsistent standards.
Depth of technical capability also becomes critical when dealing with aging infrastructure or obsolete equipment. Many industrial facilities still rely on assets that no longer have readily available replacement parts, making outright replacement both costly and impractical. Repair partners that can reverse engineer components, manufacture replacements and apply modern techniques to legacy systems allow organizations to extend asset life without disrupting operations. The ability to rebuild rather than replace reflects not only technical skill but also an understanding of cost containment and operational continuity.
Equally important is how repair quality is defined and measured. Speed often dominates vendor selection, yet rapid turnaround can come at the expense of durability. A more reliable indicator is whether the repair process is designed to exceed baseline performance expectations, particularly in balancing and testing. Precision balancing, especially in larger rotating equipment, plays a central role in ensuring smooth operation over time. When repair providers align their processes with tighter tolerances than standard practice, the result is equipment that operates more consistently and requires fewer interventions after installation.
Consistency in execution is often rooted in workforce experience and internal cohesion. Teams that have accumulated deep, collective knowledge across decades tend to recognize failure patterns quickly and apply solutions that are both technically sound and repeatable. This continuity reduces variability in outcomes, which is particularly valuable for organizations managing critical infrastructure where failure carries significant operational consequences. A stable team environment also supports knowledge transfer, ensuring that expertise is not lost but reinforced across generations of technicians.
Demco aligns closely with these expectations through a model built on continuity, in-house capability and technical depth. Its operations are structured to keep all repair processes under one roof, allowing it to control machining, rewinding and balancing without reliance on external vendors. This integrated approach supports consistency across complex repairs and enables it to address both standard and obsolete equipment requirements. Its experience spans decades, supported by a workforce with extensive cumulative expertise, which contributes to predictable outcomes and disciplined execution.
Its emphasis on precision balancing beyond standard thresholds, along with the ability to manufacture components and restore legacy systems, positions it as a partner focused on extending equipment life rather than delivering short-term fixes. For organizations prioritizing reliability, continuity and long-term performance, it represents a considered choice grounded in technical capability and sustained execution.
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