When Failure Isn’t an Option, LionHeart Keeps You Powered

We’re the most trusted name in backup power.

Our Power Services

Backup power doesn’t run on luck—it runs on LionHeart. We keep every part of your system tested, tuned, and ready to respond.

Person Working On Electrical Wiring

Generator Maintenance

We keep your generators battle-ready with scheduled inspections, load testing, and documentation that proves performance.

Automatic Transfer Switches

Your ATS makes the split-second call when power drops. We make sure it switches clean, fast, and every time.

Switchgear Services

The backbone of your electrical system deserves precision. We inspect, calibrate, and maintain switchgear that keeps your operation in sync.

Fire Pump Maintenance

When safety’s on the line, downtime isn’t an option. We keep your fire pump engines compliant and dependable.

Load Bank Testing

We don’t assume your generator works—we prove it under real-world conditions with certified load bank testing.

Fuel Maintenance

Clean fuel equals reliable power. We filter, polish, and maintain your diesel to keep contamination from killing performance.

Our Power Solutions

From new installations to system upgrades, LionHeart delivers custom solutions that fit your facility’s power demands. We handle the complex work, design, retrofit, and monitoring, so your team can focus on operations, not outages.

Image (26)

Control Panel Retrofits

With LionHeart’s custom control panel retrofits, outdated systems are upgraded to advanced digital controls that boost reliability, efficiency, and ease of use.

Generator Replacement

From removal to commissioning, LionHeart replaces aging generators with high-efficiency systems built for lasting power and consistent performance.

Radiator Replacement

Through expert radiator replacement, LionHeart ensures generators stay cool, operate efficiently, and avoid costly downtime caused by overheating.

Leak Detection Equipment Installation

Using advanced technology, LionHeart installs fuel leak detection systems that help prevent environmental risks, costly cleanups, and operational interruptions.

Permanent Load Bank Installation

LionHeart’s permanent load bank installations test generator performance under actual load conditions, confirming system readiness before the next outage.

Remote Monitoring & Control

By implementing real-time monitoring and control technology, LionHeart empowers clients to oversee power performance, receive instant alerts, and manage systems from anywhere.

Name a brand, we work with them

  • Brands 0000s 0001 Russelectric Logo 300x76
  • Brands 0000s 0002 Volvologo 300x162
  • Brands 0000s 0003 Newage Stamford Avk Png Logo 300x165
  • Brands 0000s 0004 Ford Power Products Logo
  • Brands 0000s 0005 Bluestar Logo
  • Brands 0000s 0006 Baldor Logo 300x63
  • Brands 0000s 0007 Mtu Logo 300x69
  • Brands 0000s 0008 Cummins Logo 300x281
  • Brands 0000s 0009 Asco Power Technologies 300x54
  • Brands 0000s 0010 Detroit Diesel Logo 300x62
  • Brands 0000s 0011 Generac Logo 300x67
  • Brands 0000s 0012 Ingersoll Rand Logo 300x169
  • Brands 0000s 0013 John Deere Logo 300x67
  • Brands 0000s 0014 Kohler Logo 300x196
  • Brands 0000s 0015 Marathon Generators Logo 300x66
  • Brands 0000s 0016 Mecc Alte Logo 300x84
  • Brands 0000s 0017 Cat Logo Png 300x162
  • Brands 0000s 0018 Olympian Gen Sets 300x76
  • Brands 0000s 0019 Psi Png Logo 300x60

Our Power Services

Backup power doesn’t run on luck—it runs on LionHeart. We keep every part of your system tested, tuned, and ready to respond.

Generator Maintenance

We keep your generators battle-ready with scheduled inspections, load testing, and documentation that proves performance.

Automatic Transfer Switch

Your ATS makes the split-second call when power drops. We make sure it switches clean, fast, and every time.

Switchgear Services

The backbone of your electrical system deserves precision. We inspect, calibrate, and maintain switchgear that keeps your operation in sync.

Fire Pump Engine Maintenance

When safety’s on the line, downtime isn’t an option. We keep your fire pump engines compliant and dependable.

Load Bank Testing

We don’t assume your generator works—we prove it under real-world conditions with certified load bank testing.

Fuel Maintenance

Clean fuel equals reliable power. We filter, polish, and maintain your diesel to keep contamination from killing performance.

Areas We Serve

Power problems don’t stop at state lines, and neither do we. LionHeart serves clients across Illinois, Wisconsin, Indiana, and Michigan with trusted generator maintenance, ATS service, and 24/7/365 emergency services that keep operations running strong.

Outside of our service areas? Let’s chat.

Who We Are

We’re more than a service company—we’re a veteran-owned and operated team of power professionals who take pride in being fast, dependable, and straightforward. Our EGSA-certified technicians are among the most skilled in the industry, tackling the challenges others walk away from. From our dispatch team to our field engineers, every member of LionHeart is driven by one mission: keeping your critical power systems running at peak performance.

Build Your Future With LionHeart

Working at LionHeart means joining a team that takes pride in doing things the right way. You’ll be surrounded by professionals who value integrity, craftsmanship, and a job well done—people who show up prepared, push each other to grow, and take ownership of every challenge. Here, your work matters, your voice is heard, and your career moves forward with purpose.