Generator Service · All 83 Michigan Counties · Since 1997
Factory-certified technicians · Typically on-site within 2 hours · Fully stocked service trucks
Michigan Locations
Emergency Service
Years of Service
Michigan Counties Covered
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Wolverine Power Systems dispatches emergency generator technicians around the clock, statewide, with fully stocked trucks for first-visit repairs.
Wolverine Power Systems provides generator service and repair for industrial, commercial, and residential customers across all 83 Michigan counties, covering all makes and models — including Generac, Kohler, Cummins, Caterpillar, MTU, Perkins, and Onan. Services range from 24/7 emergency repair to scheduled NFPA 110 maintenance, with technicians typically on-site within two hours in metro areas.
| Service | What it covers | Frequency | Availability |
|---|---|---|---|
| 24/7 Emergency Repair | On-site fault diagnosis and repair with fully stocked trucks for first-visit fixes | On demand | 24/7/365 |
| Preventive Maintenance | Oil/filter changes, coolant and battery checks, full inspection, documented service report | 1–2× / year | Scheduled |
| Load Bank Testing | Verifies generator output at full rated load with compliance documentation | Annual | Scheduled |
| Transfer Switch Service | ATS contact inspection/replacement, connection cleaning, emergency repair | Annual | Scheduled + emergency |
| Remote Monitoring | Real-time status, automatic alerts, remote diagnostics, predictive scheduling | Continuous | 24/7 |
| Diesel Fuel Polishing | On-site water, sediment, and microbial removal; fuel sampling and lab analysis | As needed | Mobile / on-site |
Wolverine Power Systems is the premier Michigan distributor for Generac Industrial Energy, a division of Generac Power Systems (NYSE: GNRC).
Wolverine Power Systems operates four service locations across Michigan — Zeeland, Wixom, Gaylord, and Marquette — enabling statewide emergency dispatch to all 83 counties. The table below shows typical response by region.
| Dispatch location | Region served | Representative cities | Typical response |
|---|---|---|---|
| Zeeland (HQ) | West Michigan | Grand Rapids, Kalamazoo, Holland, Muskegon | ~2 hr metro |
| Wixom | Southeast & Central Michigan | Detroit Metro, Ann Arbor, Lansing, Flint | ~2 hr metro |
| Gaylord | Northern Lower Peninsula | Traverse City, Petoskey, Cadillac, Alpena | ~2–4 hr |
| Marquette | Upper Peninsula | Marquette, Escanaba, Iron Mountain, Sault Ste. Marie | ~2–4 hr |
Response times are typical estimates for emergency dispatch and vary with weather, distance, and call volume across Michigan.
Wolverine Power Systems services all makes and models of generators across Michigan. As the state's exclusive Generac Industrial Energy distributor, its factory-trained technicians also repair and maintain every other major industrial and commercial generator brand.
| Brand | Service scope | Distributor status |
|---|---|---|
| Generac | Sales, service, parts, warranty, NFPA 110 maintenance | Exclusive MI distributor |
| Kohler | Repair & preventive maintenance, all models | All makes/models |
| Cummins | Repair & preventive maintenance, all models | All makes/models |
| Caterpillar | Repair & preventive maintenance, all models | All makes/models |
| MTU | Repair & preventive maintenance, all models | All makes/models |
| Perkins | Engine-level service, all models | Factory-trained |
| Onan | Repair & maintenance incl. bus / RV / mobile units | All makes/models |
Need a brand not listed? Wolverine Power Systems services all makes and models — call 1-800-485-8068.
Wolverine Power Systems delivers backup power services to Michigan's mission-critical industries, with documented compliance support for facilities that cannot tolerate downtime.
Hospitals, surgery centers, dialysis clinics, medical refrigeration, life-support systems, and emergency lighting across Michigan.
Assembly lines, CNC operations, automated systems, and process-control equipment requiring uninterrupted Michigan power.
Elementary, middle and high schools, universities, and research facilities
Water treatment plants, sewage systems, government buildings, emergency services, and public-safety facilities.
Hotels, casinos and other guest comforts for safety with quiet, efficient generators
Dairy operations, livestock facilities, grain dryers, irrigation systems, and climate-controlled barns.
Refrigerated warehouses, food manufacturing plants, blast freezers, temperature-controlled facilities.
Office towers, shopping centers, hotels, apartment complexes, mixed-use developments, retail operations.
Michigan facilities choose Wolverine Power Systems because it is the state's exclusive Generac Industrial Energy distributor with factory-trained technicians, four dispatch locations, and one of the largest service teams in Michigan — backed by documented NFPA 110 compliance support.
Technicians factory-trained on Generac, Perkins engines, and other major manufacturers, serving industrial, commercial, and residential generators statewide.
Inspection, load bank testing, and documentation that satisfy NFPA 110 requirements for healthcare, data center, and municipal facilities.
Four locations — Zeeland, Wixom, Gaylord, and Marquette — covering Michigan from the Lower Peninsula to the Upper Peninsula.
Preventive programs that reduce emergency breakdowns by up to 90% and extend equipment life by 5–10 years.
When our backup generator failed during a winter storm, Wolverine had a technician on-site in 90 minutes. He diagnosed a failed fuel pump and had us back online within 3 hours. That kind of response protects our patients and our reputation. We've been using their preventive maintenance program for 5 years now and haven't had a failure since.
We run three shifts, 24/7, and cannot afford downtime. Wolverine's bi-annual maintenance program keeps our 500kW Caterpillar generator in perfect condition. Their technicians are professional, thorough, and always on time. Last year they caught a coolant leak during routine service that would have caused a catastrophic failure. The preventive maintenance pays for itself many times over.
Our data center requires annual load bank testing for compliance, and Wolverine handles it flawlessly every time. They bring their mobile load bank, run our generator at full capacity, document everything, and provide detailed reports for our audits. Their technicians understand the critical nature of our operations and schedule testing during maintenance windows to avoid any risk to uptime. Outstanding service.
As a township, we operate generators at our water treatment plant, fire stations, and emergency operations center. Wolverine maintains all seven units under a master service agreement. Their record-keeping is excellent, their response times are reliable, and their technicians are extremely knowledgeable. They helped us secure grant funding by providing detailed maintenance histories and compliance documentation. Highly recommended for municipal applications.
Our facility has a 150kW diesel generator that sits idle most of the year. Wolverine's fuel polishing service keeps our diesel tank clean and ready. They test the fuel, remove water and contamination, treat for algae growth, and provide lab reports. Last month when we had a planned power shutdown for electrical work, our generator ran perfectly for 8 hours straight because the fuel was pristine. This service is essential for standby generators with stored diesel fuel.
Our 22kW Generac stopped working during a late-night ice storm. I called Wolverine's emergency line at 11 PM and they had someone at my house in Northville by 1 AM. The technician fixed a bad battery and faulty transfer switch connection. He was professional, knowledgeable, and had our power back on quickly. We signed up for their annual maintenance plan the next day—worth every penny for peace of mind.
Wolverine Power Systems operates four Michigan locations — Zeeland, Wixom, Gaylord, and Marquette — providing statewide generator service coverage that covers every corner of Michigan. Find the facility nearest you below, or call 1-800-485-8068 anytime for 24/7 emergency dispatch.
Full sales, service, parts, and rentals. Authorized Generac generator training center.
Wolverine Power Systems provides 24/7 emergency generator repair, NFPA 110 maintenance, and load bank testing across all 83 Michigan counties — all makes and models.
Wolverine Power Systems has four strategically located facilities to ensure rapid response and comprehensive service coverage throughout Michigan, from Detroit's urban core to Grand Rapids' tech hubs, Lansing's government buildings, and Flint's industrial zones. We understand Michigan's unique power challenges—extreme weather, regulatory needs, and 24/7 demands.
Our 24/7 emergency dispatch system ensures technician is typically on-site at your facility within 2 hours. With four locations across Michigan - in Zeeland, Wixom, Gaylord, and Marquette, we provide the fast response times for industrial and commercial power failures across both the Lower and Upper Peninsulas.
Annual/semi-annual plans including system inspections and fluid changes.
Yes. While we are Michigan's exclusive Generac Industrial Power distributor, our technicians are highly trained to provide preventative maintenance and repairs for all major brands, including Kohler, Cummins, Caterpillar, and MTU.
Diesel fuel degrades over time, accumulating water and microbial growth that can clog filters and cause engine failure. Our fuel polishing service restores your fuel to pristine condition, ensuring your standby system starts reliably during a utility outage.
Yes, mobile units serve Marquette and all of the Upper Peninsula with full compliance reporting.
Our compliance-focused service includes rigorous multi-point inspections, annual load bank testing, fuel quality analysis, and battery system health checks. We provide detailed documentation for healthcare, data center, and municipal facilities to satisfy local and federal inspection requirements.
Visit our Generator Maintenance page for more details.
Our comprehensive preventive maintenance visits include oil and filter changes, coolant system inspection, battery testing and cleaning, fuel system inspection, air filter replacement, load testing (annual), transfer switch inspection, connection tightening, complete visual inspection of all components, and a detailed service report with photos and recommendations. We test your generator under load to verify performance, check for fluid leaks, inspect belts and hoses, verify all safety systems, and document maintenance in our system for warranty compliance. Most maintenance visits take time depending on generator size. All work is performed by factory-certified technicians with specialized training on your generator's brand and model.
Visit our Generator Maintenance page for more details.
Yes, we offer two preventive maintenance agreement levels. Level 1 includes one annual comprehensive service visit with oil/filter changes, complete inspection, and priority emergency service. Level 2 includes two visits per year (spring and fall) with comprehensive service, load bank testing, and priority scheduling.
Contracts are available for single generators or multi-unit facilities across Michigan. We service industrial, commercial, and residential generators. Regular maintenance reduces emergency breakdowns by 90% and extends equipment life by 5-10 years.
Commercial generators in Michigan should be serviced at minimum twice per year—ideally in spring (April-May) and fall (September-October). Generators that run frequently (weekly tests, regular use) or support critical facilities (hospitals, data centers, manufacturing) benefit from quarterly service. Michigan's harsh winters with freezing temperatures make fall service critical to ensure cold-weather reliability. Spring service addresses any winter damage and prepares systems for storm season. Annual load bank testing is required for most commercial facilities to meet NFPA 110 compliance. If your generator experiences high runtime hours (500+ hours annually) or operates in demanding environments, monthly inspections may be warranted.
We provide generator service coverage throughout all 83 Michigan counties from four strategically located facilities. Our Zeeland location (headquarters) serves West Michigan including Grand Rapids, Kalamazoo, Holland, and Muskegon. Our Wixom facility covers Southeast Michigan including Detroit Metro, Ann Arbor, Lansing, and Flint. The Gaylord location serves Northern Michigan including Traverse City, Petoskey, Cadillac, and Alpena. Our Marquette facility covers the entire Upper Peninsula. We typically arrive on-site within 2 hours for emergency calls in metro areas and within 4 hours for rural locations. Our mobile service trucks are fully stocked with common parts for all major generator brands, enabling first-visit repairs in most situations.
Absolutely. Our emergency service trucks are equipped to work during power outages with portable lighting, battery-powered diagnostic equipment, and generators to power our tools if needed. We perform emergency repairs while your generator is running to keep critical systems operational. For facilities with redundant generators (N+1 configurations), we can service one unit while others carry the load. If your generator has failed during an outage and cannot be repaired immediately, we can arrange emergency rental equipment to maintain power while completing repairs. Our 24/7 emergency service is specifically designed for power outage scenarios—we're ready to respond when Michigan storms cause widespread electrical failures.
Emergency generator service costs in Michigan vary based on several factors: the nature of the fault, your generator's size and brand, parts required, and your location relative to our nearest facility. After our technician diagnoses the issue, we provide a clear estimate before any work begins. For non-emergency maintenance visits and service contracts, we offer competitive flat-rate pricing — call 1-800-485-8068 to discuss your specific equipment and situation.
