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Generator Maintenance Contracts

Generator Maintenance Contracts That Prevent the Emergency Call

Most generator failures start as something small: a weak battery, a clogged filter, degraded fuel. A Keystone maintenance program finds those problems on a schedule, not during an outage.
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Preventive maintenance

Preventive maintenance and inspections

We build a maintenance plan around your equipment, your runtime, and your site’s requirements. Typical visits include:
  • 1 Visual inspection of engine, generator, enclosure, and transfer switch
  • Oil, filter, and coolant service on schedule
  • Battery and charger testing
  • Fuel system inspection and fuel quality checks
  • Belts, hoses, and connections
  • Control panel, alarm, and safety shutdown checks
  • Run test and transfer test

Remote Monitoring

Know there’s a problem before your staff does. Remote monitoring watches your generator’s status and alarms and alerts our team when something needs attention — so a technician can be on the way before a small fault becomes a failure.

Fuel Polishing

Diesel stored for months can collect water, sludge, and microbial growth. Our fuel polishing service pumps your stored diesel through a filtration system and returns clean fuel to the tank — without draining or replacing it.

More Ways We Protect Your Equipment

Warranty Support

We help you keep up the maintenance records manufacturers require and can handle service for Generac and Briggs & Stratton equipment as a service dealer.
Brands we service

Plans built around your site

A data center, a gas plant, and a grocery store don’t need the same schedule. We recommend quarterly, semi-annual, or annual visits based on how critical the load is, how often the unit runs, and any code or insurance requirements you have to meet.
Quarterly
Critical facilities
Semi-Annual
Industrial sites
Annual
Commercial & standby

Priority emergency service

Contract customers move to the front of the line. When you call 855-31-POWER with a problem, sites under a Keystone maintenance contract are dispatched first.

What's in your service report

After every visit you receive a written report covering readings, findings, work completed, and recommended repairs ranked by urgency. Facility managers use it for budgeting; compliance teams use it for records.
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FAQ

How often should a commercial generator be serviced?
Most sites need at least an annual service, and critical facilities typically need quarterly or semi-annual visits. We’ll recommend a schedule based on your equipment and requirements.
Yes. We maintain all major generator brands.
We document it, explain it, and quote the repair. Nothing is done without your approval unless it’s an emergency.
It depends on tank size, storage conditions, and how often fuel is used. We test your fuel and recommend an interval.

Why Keystone

Keystone was built by generator people who know what happens when backup power fails at the wrong moment. We’re a one-stop shop: the same team that maintains your generator can repair it at 2 a.m., rent you a unit while it’s down, and help you specify its replacement. We’re in it for the long haul, not a quick buck.
One call for everything
Service, repair, maintenance, rentals, and sales from one team.
30 years of combined experience
Our team has worked on generators in the field for decades.
Every brand, every size
We service all major makes, from light commercial units to large industrial sets.
In it for the long haul
We build long-term service relationships, not one-time tickets.
Reports you can use
Every visit ends with a clear service report for your facility and compliance records.

Power down? Don't wait.

Our team answers 24/7, 365 days a year. [Call 855-31-POWER]
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