Generator maintenance only $295 for a single unit

Generator maintenance is what we do every day. If you need reliable generator maintenance in Chicagoland, McHenry, or Lake County, GSHA Services, LTD keeps your whole-house standby system tuned, safe, and ready for outages—inspections, oil/filter service, load testing, ATS checks, and fast repairs across Chicagoland.

  • Tune-up checklist
  • We follow a proven sequence to ensure reliable performance:
  • First, replace engine oil, oil filter, and air filter.
  • Next, visually inspect the unit and verify proper operation.
  • Then, inspect the exhaust system.
  • After that, examine all hoses and belts.
  • Also, check the governor, voltage regulator, and ignition components.
  • Run a functional test of the generator’s control systems.
  • If equipped, inspect the block heater.
  • Test and record battery condition.
  • Test and record the battery charging system.
  • Finally, clean the area around the generator after service.

Benefits of Our Generator Maintenance Services

  • Count on GSHA Services, LTD for proactive standby generator maintenance across Chicagoland. We keep your system ready, efficient, and compliant—so outages don’t catch you off guard.
  • 24/7 customer care: Reach a live specialist anytime. We schedule maintenance and run routine tests for you.
  • Priority parts access: We partner with trusted distributors and OEMs. As a result, we source parts fast and keep costs down.
  • Certified expertise: Our factory-certified technicians and licensed electricians bring 20+ years in critical facilities.
  • Single point of contact: Consolidate generator, automatic transfer switch (ATS), and battery service under one contract. Therefore, you streamline vendors and reduce admin time.
  • Compliance & warranty protection: We follow manufacturer guidelines, document every visit, and help keep warranties valid. In addition, you receive clear service reports.
  • Reliability & safety: Prevent breakdowns with inspections, load testing, and performance checks. Consequently, your home or business stays powered during outages.
  • Transparent pricing: Get upfront quotes, reminders, and post-service photos—no surprises.

We Maintenance Any Generator Brand or Model

At GSHA Services, LTD, we maintain and repair all makes and models—whether or not we installed your system. We support Generac, Cummins, Kohler, Briggs & Stratton, Champion, Honeywell, and more. Our factory-certified technicians service air-cooled and liquid-cooled units for homes and light commercial sites across Chicagoland.

What we do: routine tune-ups, diagnostics, emergency repairs, ATS inspection, load testing, firmware updates, and battery replacement. We stock standard parts and source hard-to-find items fast, so your generator returns to service quickly.

Why choose us: 24/7 live support, transparent pricing, and detailed service reports. With one call, you get a single point of contact for your standby generator and automatic transfer switch, which simplifies maintenance and lowers costs.

Need help now? Book online or call—our team will schedule your service, keep up with routine testing, and make sure your whole-house generator is ready for the next outage.

Avoid breakdowns

Keep outages from becoming emergencies. With 20+ years of experience, GSHA Services, LTD delivers expert generator servicing, maintenance, and repairs in Chicago, IL. Our factory-certified technicians and support staff are strategically positioned across Illinois, so help arrives fast—no matter where you are. We service all brands and models, including air-cooled and liquid-cooled units.

Nothing’s worse than a generator that fails when the power goes out. That’s why we provide proactive backup generator checkups and full-service maintenance. We test, tune, and verify performance, so your automatic standby generator starts reliably and runs safely when you need it most. As a result, you reduce surprises, protect warranties, and extend equipment life.

Ready to prevent breakdowns—and stay powered during the next storm? Call (224) 220-3660 or book your generator maintenance in Chicago today. We’ll schedule promptly, perform a thorough inspection, and keep your system ready for any outage.