Welcome to the Gruber Power Services FAQ page. Here, you’ll find comprehensive answers to common questions about our products and services. Our FAQs are categorized into sections for Fiber, Copper, and Metal products, as well as general company information. Learn about our high-quality, American-made products that comply with the Build America Buy America Act and come with a lifetime warranty.
Gruber Power Services is a leading provider of Critical Power Equipment service and sales with nationwide service capability offering onsite repairs and service agreements.
Headquartered in Phoenix, Arizona, we also provide Critical Power Equipment depot repair, equipment refurbishing, battery module recycling and rebuilding.
Along with new equipment sales, we offer completely refurbished and warranted UPS and battery systems.
We provide onsite nationwide service for:
Mitsubishi
APC
Vertiv / Liebert / Emerson
Eaton / Powerware
Deltec
Best Power Technology
Exide Electronics
Clary Corporation
Silicon Power Corporation
MGE UPS Systems
Toshiba UPS Division
We have Field Engineers all over the USA, and parts of Canada available for critical power equipment onsite emergency remedial service, preventive maintenance, and upgrade and design services.
We are also available to travel internationally and provide services.
With over 40 years of experience in the critical power industry, we offer expert service across all major brands of equipment.
Our deep, multi-brand expertise allows us to deliver preventive maintenance and repair services that rival—and often outperform—OEM support, both in responsiveness and cost-efficiency.
By consolidating service under one trusted provider, we help Data Center operators reduce vendor complexity, streamline operations, and significantly lower total maintenance costs—without compromising reliability or compliance.
We are available 24 hours a day, 7 days a week 365 days a year.
Gruber Power Services will provide emergency support including dispatching a trained field engineer to your site. Our mission is to minimize downtime.
Contact us by calling:
(800) 658-5883 extension 256 Monday – Friday 7AM to 5PM MST
After-Hours: (888) 404-6997
Online requests:
Free Tech Support
This service is our most popular. When your equipment goes down in the middle of the night, you want someone to answer the phone, and someone knowledgeable to discuss a restart, how to transfer to emergency generator, reset breakers, and assess your situation.
Our nationwide staff of factory trained field engineers and a network of global service organizations are available at a moment’s notice to diagnose and repair a variety of power protection products including UPS, Motor Generators, Power Distribution Systems, and Power Conditioning Units.
We inventory parts for and service many different brands of power protection products! If you need assistance, don’t hesitate to call us so that we can supply you with the best products or services that only Gruber Power Services can supply!
When choosing a company to provide you with the best possible service for your power equipment, there are many factors that should be considered in making the best decision. The following are points we feel are critical in deciding which company can best serve your needs:
Coverage –
Gruber Power Services has factory trained Field Engineers on staff locally to provide you with the quickest response possible in case of outages. In addition, our Service Alliance Partners allow us to offer service response wherever you are on the globe.
Escalation Procedures –
Gruber Power Services understands that occasions may arise where factory support may be necessary to solve unusual or design anomalies with your UPS. Gruber Power Services maintains reciprocal subcontracting agreements with several manufacturers to ensure you receive the highest quality service available.
Qualified Field Engineers –
Gruber Power Services maintains an employee base of qualified Field Engineers who go through rigorous in-house and factory training when possible prior to joining the field force. This pool of experience and expertise provides you with the most professional and timely service possible.
Company Stability –
Gruber Power Services is a subsidiary of the combined Gruber companies which are involved in construction, manufacturing, EV service and engineering, and critical power equipment sales and service. With hundreds of employees to meet any and all power needs, our buying power and financial stability ensure that we can meet any obligations necessary to get the job done correctly.
Ability to Provide Spare Parts –
Gruber Power Services stocks spare parts for equipment we service. In addition, our large UPS refurbishment sales and service activity provides access to legacy parts which we not only supply to other independent maintenance organizations but the UPS manufacturers as well.
Contact us by calling:
(800) 658-5883 Monday – Friday 7AM to 5PM MST
or
602-863-2655
Email us at:
Visit our e-Stores for round the clock order processing.
We are headquartered in a multi-building commercial complex in North Phoenix, Arizona, conveniently located next to Deer Valley Airport.
Our physical address:
21439 N. 2nd Avenue
Phoenix, AZ 85027
Our team spans the entire United States and includes Sales and Marketing Account Managers, Field Engineers, and a nationwide network of trusted partners—ranging from critical power service providers to engineers and certified electricians.
We have been operating since 1984.
The Gruber Companies began with humble roots in a modest North Phoenix home.
Our founder, Pete Gruber, always had a deep fascination with electronics. As a teenager in the 1960s, he worked at a local radio shop—an early sign of his passion for all things technical. After gaining hands-on experience in the two-way radio field as a field engineer, Pete briefly explored a different path, homesteading and farming in upstate New York. But the pull of technology proved stronger.
In the late 1970s, he relocated his family to Phoenix, Arizona, in search of warmer weather and new opportunities. Eager to expand his technical expertise, Pete turned his focus to computing. His background and curiosity led him to Digital Equipment Corporation (DEC)—then considered second only to IBM—where he quickly advanced from bench technician to field engineer repairing mainframe computers onsite, and eventually to site planning consultant. In that role, he advised clients on preparing their facilities for large mainframe installations, power requirements, HVAC, access floor, cabling, fire suppression and access floor, gaining a deep understanding of data center infrastructure.
After a decade in the corporate world, Pete made a bold decision: to step away from corporate life and build something of his own.
Operating out of his home, Gruber Associates was born. The company quickly earned a reputation for quality and professionalism, prompting a move into commercial space—laying the foundation for what would become our multi-building North Phoenix campus.
From this core business, multiple divisions naturally emerged. Data Center construction included equipment sales, which led to the need for ongoing service. Demand for raw materials like cabling created an opportunity for manufacturing. As these interconnected needs surfaced, synergistic businesses were launched—each reinforcing and expanding the capabilities of the others.
Today, the Gruber Companies is a diversified, multi-division organization built on decades of innovation, integrity, and technical excellence—all rooted in one man's passion for technology and a dream that started in his living room.
Gruber Power Services
Focused on critical power equipment sales and service, UPS units, batteries, and service agreements
Gruber Communications
Specializes in data/voice cabling products and passive communications hardware
Gruber Technical Services
Offers electrical contracting, structured cabling, data center planning, access flooring
Gruber Motor Company
An independent EV service provider, offering engineering services, parts, and robotics
Gruber Commercial Properties
Provides commercial building management services and leasing
EV Preserve
The first EV exotic car storage facility offering temperature-controlled storage with strict charging protocols
