Expert Generator Service & Maintenance

Reliable Repair, Testing & Upkeep for Cummins, Generac, Cat, Kohler & More

About Hedgehog Power Systems

Hedgehog Power Systems is your trusted local expert in generator service, maintenance, and repair for commercial, industrial, and residential clients in New Lenox and the greater Chicago area. We specialize in keeping top brands, Cummins, Onan, Caterpillar (Cat), MTU, Kohler, Generac, Baldor, Briggs & Stratton, and more, running reliably with minimal downtime. Our certified technicians deliver proactive, high-quality work, including breaker testing, parallel systems inspection, fuel tank cleaning, control upgrades, and tiered coolant system maintenance, all performed to strict IEC and ANSI standards.

Why Choose Hedgehog Power Systems?

With years of hands-on experience, we provide fast, dependable service that minimizes disruption to your operations. Our team is committed to safety, compliance, and excellence, ensuring your backup power system is always ready when you need it most.

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Minimal Downtime Guarantee

Fully Licensed & Insured

Certified in Major Brands

100% Satisfaction Commitment

Comprehensive Generator Services

From preventive maintenance to advanced upgrades, we deliver specialized solutions tailored to your power needs across all of Illinois and surrounding states.

Services:

Breaker Testing

Parallel Systems

Fuel Tank Cleaning

Control Upgrades

Coolant System Maintenance

Full Generator Inspection & Repair

Service Highlights

Breaker and electrical system testing
Parallel load sharing & synchronization
Fuel system decontamination
Control panel & ATS modernization
Engine coolant & cooling upgrades
Full diagnostic inspections

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Our Proven Service Process

1. Initial Consultation & Assessment

We start with a detailed review of your generator system, including on-site inspection, performance history review, and discussion of your specific needs to create a tailored service plan.

2. Expert Testing & Maintenance

Our certified technicians perform precise diagnostics, testing, cleaning, upgrades, and repairs — following manufacturer guidelines and industry standards for maximum reliability.

3. Verification & Ongoing Support

We thoroughly test the system under load, provide a full report, and offer recommendations for future preventive care. You’re back online with confidence and we remain available for any follow-up.

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Powering Reliability Across Illinois & Beyond

See examples of the professional-grade equipment and expertise we handle daily.

Cummins & MTU parallel systems ready for mission-critical power
Reliable power solutions for businesses statewide
Modern control upgrades for seamless operation
Expert service on Generac and Kohler units

Questions?

Have questions about generator service, maintenance, or repairs? Here are answers to the most common ones we hear from clients across Illinois and surrounding states.

For personalized help, give us a call!

Call us (708) 292-6300

Commercial and industrial generators typically need full service annually or every 200-500 hours of operation (whichever comes first). We also recommend weekly visual checks and monthly exercise runs. Our tailored plans include breaker testing, fuel tank cleaning, coolant maintenance, and more to prevent issues.

A standard visit covers fluid checks (oil, coolant, fuel), filter inspections/replacements, battery testing, visual inspections for leaks or wear, control panel diagnostics, and system performance verification. For your setup, we can include specialized tasks like parallel system synchronization or fuel polishing.

Contaminants like water, sludge, and sediment can clog filters, damage injectors, and cause failures during outages. Regular cleaning removes these issues, restores clean fuel flow, and extends engine life, especially critical for standby systems that sit unused for long periods.

Yes! We are experienced with Cummins, Onan, Caterpillar (Cat), MTU, Kohler, Generac, Baldor, Briggs & Stratton, Aggreko, and many others. Our technicians handle diagnostics, repairs, upgrades, and maintenance for diesel, natural gas, and propane units.

Breaker testing verifies trip times, insulation, contact resistance, and fault handling under simulated conditions. It ensures your generator and electrical system will protect equipment and personnel during overloads or faults, meeting safety and compliance standards.

Signs include low coolant levels, overheating during tests, discolored or contaminated coolant, or worn hoses/belts. We offer tiered coolant service (Level 1–3) to replace components, flush the system, and prevent engine damage from corrosion or freezing.

Schedule Service or Get in Touch

Ready for generator maintenance, repair, testing, or an upgrade? Fill out the form below with your details, and our team will respond within 1 business day (or sooner for emergencies). We’re here to keep your power reliable across all of Illinois and surrounding states.

We’ll contact you promptly to discuss your needs, provide a quote, or schedule a visit. For immediate assistance, call us at (708) 292-6300.

Your partner for thorough, reliable home inspections.

Call us (708) 292-6300

INFO@hpsgens.com

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Areas We Proudly Serve

From northern Illinois to southern borders and beyond, Hedgehog Power Systems delivers fast, reliable generator service throughout the state and neighboring regions.

All of Illinois
Iowa
Wisconsin
Missouri
Indiana
Kentucky