Keeping Critical Power Online.
Specialized UPS maintenance, battery replacement, transformer testing, and medium voltage VLF cable testing — for data centers, industrial facilities, and mining operations that cannot afford downtime.
Your Critical Power Partner
JMS Critical Power is a specialized electrical services company focused exclusively on mission-critical power infrastructure. We serve data centers, industrial plants, utilities, and mining operations across the region — delivering the technical expertise and rapid response that high-stakes environments demand.
From routine UPS preventive maintenance to emergency battery replacements and high-voltage cable diagnostics, our certified technicians bring the skills and equipment to keep your facility running — no matter what.
Data Centers
Protecting uptime for colocation, enterprise, and hyperscale facilities.
Mining Operations
Reliable power services for surface and underground mining environments.
Industrial Plants
Transformer and UPS services for manufacturing and process facilities.
Utilities & Substations
High-voltage testing and maintenance for utility infrastructure.
Specialized Power Services
UPS Inspection & Maintenance
Comprehensive inspection, preventive maintenance, and repair for Liebert, Eaton, and Toshiba UPS systems. We keep your critical power infrastructure operating at peak performance — minimizing risk and maximizing uptime.
Liebert · Eaton · Toshiba
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Battery Replacement
Full battery replacement services for UPS systems of all sizes. We source, install, and test replacement battery strings to restore full runtime capacity and ensure your backup power is ready when it matters most.
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Transformer Testing
Diagnostic and acceptance testing for power transformers in industrial plants and mining operations. Our testing protocols identify insulation degradation, winding faults, and other failure modes before they become outages.
Industrial · Mining
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Medium Voltage VLF Cable Testing
Very Low Frequency (VLF) cable testing using the HVA28TD test set. We perform withstand and diagnostic testing on medium voltage cable systems to verify integrity and detect insulation defects before they cause failures.
HVA28TD Test Set
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Certified Technicians
Our field technicians hold industry certifications and bring hands-on experience with the most demanding power environments — from data centers to underground mining operations.
Mission-Critical Experience
We understand the true cost of downtime. Every service we perform is engineered to protect uptime, reduce risk, and extend the life of your critical power assets.
Rapid Response
Power emergencies don't wait for business hours. JMS Critical Power offers emergency on-site response so your facility gets the help it needs — fast.
Downtime Is Not an Option.
Contact JMS Critical Power for a fast, no-obligation quote on any of our services. We respond within one business day.