Backup methods are crucial to prevent unscheduled downtime or loss of data due to power outages, and an Uninterruptible Power Supply system facilitates recovery from these unexpected power losses or fluctuations.

STS Electric will perform an assessment for your critical systems to determine your requirements for backup power. STS Electric can provide you with the right choice power backup for your critical systems. By installing a Generator Backup and Uninterruptible Power Supply (UPS) at your business, you can guarantee that data is protected and the lights, power, and systems critical to the operations of your company continue to stay on even when everyone else is in the dark

STS Electric provides

Diesel Generators
Gas Generators
Rental of industrial generators for any temporary power need
Transfer Switches
Surge protection and power conditioning
Cooling systems for the IT Environment
Uninterruptible power supply (UPS)
24×7 Emergency Support.

ups systems — UPS & Power Backup Systems Installation and Services 2

Disaster Recovery

When disaster strikes, STS Electric is here to help you recover quickly and safely. We provide emergency power solutions across Chicago and surrounding suburbs, ensuring you stay protected during:

Snow Storms
Strong Winds
Blackouts
Lightning Strikes

With over 40 years of industry experience, STS Electric understands the critical role of a reliable UPS (Uninterruptible Power Supply) system. We design and install systems that safeguard your business from data loss, power interruptions, and system failures.

Need emergency backup power or generator installation?
Call STS Electric today at 773-721-1111 to learn more about our UPS systems, backup generators, and complete electrical and technology solutions for both homes and businesses.

What Our Clients Are Saying

From homes to businesses, our services made a real impact. How we've helped clients transform.

      EXCELLENT  
   Based on 211 reviews 
    
 
 
 
   
 
 
      Posted on Google  
   
   Steve A 
 
 
  Amazingly fast work. Perfect installation. Super friendly guys came out. Highly recommend!
  
 
     Posted on Google  
   
   Greg E 
 
 
  GREAT COMPANY TO WORK WITH FOR ALL OF YOUR RESIDENCIAL AND COMMERCIAL PROJECTS
  
 
     Posted on Google  
   
   Jassan M 
 
 
  Excellent Company! Would use for all my commercial and residential projects!
  
 
     Posted on Google  
   
   Mark M 
 
 
  Prompt, courteous and informative — our problems with flickering lights solved with LED compatible dimmer switches!
  
 
     Posted on Google  
   
   Bryan S 
 
 
  Excellent workmanship, speedy, polite and accommodating.  I’ve used them before and they are definitely recommended.  Also, they stand behind their work.  Any issues and they make sure it is right.
  
 
     Posted on Google  
   
   Grigor C 
 
 
  You guys provide excellent electrical service 10/10, thank you.
  
 
     Posted on Google  
   
   Rhonda S 
 
 
  Daniel and Francisco were fantastic; they were efficient and mindful of our time. Very professional.
  
 
     Posted on Google  
   
   Nancy L 
 
 
  Both electrians were excellent and worked efficiently. Replaced 3 ceiling fans, 6 wall outlets and repaired 1 light switch. They found that one of the electric boxes for a ceiling fan needed more stabilization and had the equipment on hand to fix the problem.
  
 
     Posted on Google  
   
   Zach L 
 
 
  Juan & Jose did a great job installing new fans and repairing a some outlets! Showed up on time, very efficient in their work, and nice to deal with. Definitely recommended!
  
 
     Posted on Google  
   
   Dan R 
 
 
  These guys did great work for me requiring a bunch of outdoor lights and installing a new breaker panel. Thorough and well done. Daniel and Francisco were great.

Markets We Serve

Residential Electrical Services

Commercial Electrical Services

Industrial Electrical Services

Emergency Service available 24/7

(773) 721-1111

Our Commitment to Excellence

STS Electric Contractor is a premier electrical contractor based in Chicago, Illinois, offering design-build capabilities and a full range of services to residential, commercial, and industrial clients. At STS Electric, we are dedicated to delivering efficient, high-quality, and innovative electrical solutions. Every project, from installation to maintenance, is supported by a comprehensive warranty, ensuring reliability and customer satisfaction.

A+ BBB Accredited
100% Satisfaction Guarantee
Fast Response Times

Fully Licensed, Insured & Bonded
24/7 Emergency Service
Free On-Site Estimates

Senior & Military Discounts
ICC-Certified EV Charger Installer
State-of-the-Art Diagnostic Tools & a fully stocked inventory

UPS & Power Backup Systems Installation and Services