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UPS & Power Backup Systems Services

EV Charger Installation | STS Electric
Home Electrical Repairs | STS Electric
STS Electric | Trusted Electricians Chicago

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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.​
Reliable UPS Systems for Power Backup

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​
  • 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.

Read What our Clients say About STS
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Terrence C.

Stars

My wife works full time in his job so basically I am the one who manages our home especially for the kids. Recently, I've noticed that our...

User

Neil H.

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We have been using STS Electric for our senior home care facilities for all electrical high and low voltage work including nurse call system...

User

Kate Zehr

Stars

STS really took care of us! Sam and Ana were so attentive and understanding of a very difficult situation. Their advice and expertise was invaluable.

User

James P.

Stars

Great service, on time and very professional. They fixed my office’s wiring quickly and left everything clean.

User

Susan R.

Stars

I am impressed with the quality of work done by STS Electric. They provided solutions that saved us money long term.

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Michael T.

Stars

Very responsive and affordable pricing. The team was polite and efficient. Highly recommended.

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Emily G.

Stars

They fixed my home’s electrical issues within hours. Super reliable and respectful team. I'll definitely call them again.

User

Robert F.

Stars

Friendly team and excellent follow-up after the service. They even checked back a week later to make sure everything was good.

User

Amanda L.

Stars

Outstanding service. The electricians were professional, friendly, and ensured everything was working perfectly before leaving.

User

Noelia Soto.

Stars

We worked with Danny, Francisco, Sam and Anna. They were all very professional, kept us informed at all times of what was going on...

User

Clamor Daniella R..

Stars

The team came to install my EV charger. They were fast and very kind. Would definitely call them again.

Markets We Serve
Residential
Commercial
Industrial

Emergency Service available 24/7

(773) 721-1111
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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.

Electrician Chicago | Trusted Local Experts
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Electrician Chicago | Trusted Local Experts
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Electrician Chicago | Trusted Local Experts
Fast Response Times
Electrician Chicago | Trusted Local Experts
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Electrician Chicago | Trusted Local Experts
24/7 Emergency Service
Electrician Chicago | Trusted Local Experts
Free On-Site Estimates
Electrician Chicago | Trusted Local Experts
Senior & Military Discounts
Electrician Chicago | Trusted Local Experts
ICC-Certified EV Charger Installer
Electrician Chicago | Trusted Local Experts
State-of-the-Art Diagnostic Tools & a fully stocked inventory
Notoka Marbles
I am excited to complete this review. A big thank you goes out to Sam and his team for the electrical work they completed for my dad. I really appreciate how Sam showed concern for my father and worked hard to make sure he was happy with the work. He also came back a few times to make sure things were working properly. I recommend STS Electric not only for the work, but for the care they show to people as that is truly a treasure. Again, thank you Sam and team!
Jeff Cho
Sam, Ana, and Francisco & team were communicative, thorough, and did incredible work at my properties (2) over the past months. The inspector's comments were "this is how it should be done" - that's incredible praise. Cannot recommend more! 10.0 A++
Sheila Sheridan
Sam from STS responded right away when the power went out in our unit. He was clear, kind and fixed the problem quickly. Highly recommend!
Mark Taylor
Sam and team did a great job of diagnosing the issue, communicating and solving in a timely manner. Very pleased with how meticulous and professional the team was
Brandon Delaney
Fantastic service! Took care of an emergency repair rapidly and seamlessly! Will definitely use them again as needed!
Grafton Brown
STS Electric did great work rectifying the problems I had with my home electrical system. They installed a new panel, checked out all the outlets, corrected the grounding situation, and prepared my house for the eventuality of installing an EV charging station. The workers—Juan, Jose, Abel and others—were thorough and highly focused on their work. STS even got ComEd on the site when they saw the need! And I have to send kudos to Anna for her patience and helpfulness throughout the whole process. I recommend STS Electric to anyone in need of electrical work!
Coach Grams
STS Electric exceeded my expectations with their Level 2 EV charger installation. Sam, the estimator, provided a transparent bid that was slightly higher than others but reflected their commitment to quality without cutting corners—I’m glad I chose them. Ana in customer service was fantastic, handling invoicing and ensuring everything was set up perfectly for my rebate application. The installation team delivered quick turnaround, excellent service, and open communication throughout. Highly recommend for transparency and quality workmanship!
Matthew Berryman
STS was very professional, worked hard and consistently; they showed up on time and did excellent work. Sam communicated in a friendly helpful manner and followed through to make sure I understood what was happening and offered additional Assistance to ensure we had the best experience possible. I am so pleased with the outcome and would highly recommend them!
adrian francis timbol
We had a complex lighting plan for our kitchen and living room, and this team executed it perfectly. They didn't just install the fixtures; they ran new, dedicated circuits from the breaker box to ensure everything was up to code and could handle the load. The installation of the lights was so clean and professional—all wires are completely hidden. It’s not just functional; it’s a work of art. Highly recommend for any serious electrical work!
Cjhay Imperial
Absolutely amazing service! I called STS in the morning, and they had someone at my door by lunchtime. The issue was fixed quickly and efficiently—before I even had to pick up the kids from school! That kind of fast and reliable service is hard to find these days. Highly recommended!

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