Commercial & Industrial Generator Service & Maintenance
that protects everything.
And you.
Hospitals mid-surgery. Data centers handling critical info. Cold storage facilities for perishable goods. When your very existence relies on generator power, “good enough” won’t do. You need great — you need Power Plus Generator Maintenance Services.
We’re America’s largest independent power solutions provider.
From L.A. to NYC, Seattle to Tampa, and Houston to Chicago, Power Plus maintains and services thousands of generators every year. Our expertly-trained technicians know every make, model, and OEM system inside and out — from Caterpillar, Cummins, and Kohler to Generac, MTU, and Waukesha.
And because of our coast-to-coast footprint, we have technicians in most areas of the country. Seasoned professionals who consistently deliver the best diesel generator service response times in the industry. So wherever you are, Power Plus techs are on the job — local service experts who know your site, how your generator operates, and what’s at stake.
After nearly 40 years, we’ve seen it all, and serviced it all.
Our expertise spans from huge 3250 kW generators to small portable units and every size in between. Including diesel, natural gas, propane, and gasoline fuel types.
We handle decades-old legacy units just as competently as newer, emissions compliant generator systems. And provide emergency generator service as reliably as routine generator service and maintenance tasks.
Which makes us more than just another “generator service companies near me” offering routine maintenance for your diesel generators. It makes Power Plus your business continuity partner. The ones who always answer when you call — every hour of the day, every day of the year. And always ensure your generator runs smoothly.
Commercial Generator Services
that Go Beyond the Basics.
Performing regular maintenance on your diesel generator is more than checking boxes or swapping out parts. It’s making sure your power system actually works when it matters. So, Power Plus techs go deeper — inspecting, testing, and verifying your entire system. Our standby generator maintenance covers:
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Generator Wiring, Cables & Distribution Equipment
Inspecting connections, insulation, and load paths to catch potential faults.
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Generator Load Bank Test
Load tests simulating real-world demand, so you know your system holds.
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ATS Test (Automatic Transfer Switches)
Testing the “brain” of your generator that decides whether your facility stays online during power outages.
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Cooling Systems
Ensuring nothing overheats and takes your generator down.
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Building Management Systems & Controllers
Maintaining the control systems and control panels behind your backup power.
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Fuel Systems & Storage Tanks
Maintenance and repair of fuel systems, including above and below-ground storage tanks and pumps.
Extend Your Generator’s Life 10 to 50 Years.
Most generators are built to last decades — if they’re maintained. Skipping preventive generator maintenance the way many generator servicing companies do is gambling with downtime. Power Plus doesn’t skip anything. Our Preventive Maintenance (PM) Programs help extend your generator’s life, reduce failures, and ensure readiness. Dedicated to the ultimate care of your equipment, our expert PM techs perform regularly scheduled industrial generator maintenance that includes inspections and annual services on every part of your generator:
- Engine Inspections & Run Checks
- Fuel Injector Checks
- Oil Levels, Fuel Filters & Lubrication Services
- Cooling System Service
- Fuel System & Fuel Tank Service
- Battery & Starting System Checks
- Intake & Exhaust Systems Checks
- Electrical Systems, Controls & Operational Runtime Testing
- Load Bank & ATS Testing
Box-checking won’t extend your generator’s lifespan up to 50 years. Long term, proactive, regularly-scheduled inspections and annual maintenance will. Granted, when they’re conducted professionally and thoroughly – the way Power Plus does them – which catches issues before they cascade into more costly problems. One customer told us:
“You actually answered on a Sunday night.
That made the difference.”
Answering your call 24/7 is more than company policy — it’s how we’re wired. We’re always on. So you’ll always have power.
Expert Technicians.
On Every Brand. In Every Situation.
Trained on every OEM, Power Plus techs are seasoned specialists who know your commercial generators as well as the engineers who designed them. Just as important, our guys know the environments they protect — and what’s on the line. The OEM brands and engines we service include:
- Caterpillar
- Cummins/Onan
- Detroit Diesel
- Ford
- Generac
- GM
- Isuzu
- John Deere
- Katolight
- Kohler
- Kubota
- Mitsubishi
- MTU
- Volvo
- Waukesha
- Yammar
- and others …
But it’s not the logos that matter — it’s our problem-solving approach. When any other commercial generator maintenance company gets stumped, Power Plus techs dig deeper.
We’ve rebuilt legacy units, improvised workarounds, and sourced 50-year-old parts just to keep a company online. That’s not a brochure highlight — that’s just another day at Power Plus.
When Your World Goes Down Unexpectedly,
Problem Solving Is
Our #1 Job.
At Power Plus, our emergency service generator repair team will never leave you in the dark. If that means chasing down a legacy part from Australia or rebuilding equipment during a power outage — that’s what we do.
We don’t walk away when things get hard. We dig in.
We stay until we solve the problem, or know the solution is on the way. And when the part arrives, we’re there to meet it and get you powered back up.
That’s why Power Plus customers call at all hours of the day and night for emergency generator maintenance. They’ve seen us catch things other generator service companies didn’t. And prevent failures others couldn’t. You will too.
Generator Service That’s Always On.
Every Hour. Every Day.
Search the internet for “commercial generator service near me,” “commercial generator maintenance near me,” “diesel generator service near me,” or even “commercial generator service companies near me” and you’ll get a lot of results promising 24/7 support.
At Power Plus, we don’t just promise 24/7 service — we live it. And we deliver. With U.S.-based people answering your call — within minutes. Replacement parts loaded on trucks, not stacked in warehouses waiting for approval. And meaningful follow through — including reviews, check-ins, and escalation protocols to make sure your “maintenance” keeps you up and running, and not in the dark.
That’s why more than 50 companies on the Fortune 100 trust us with their industrial generator services. Not because of the Power Plus logo on our trucks. But because of the partnership it represents.
Why Fortune 100 Companies Trust Power Plus
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True 24/7 Response
Calls answered in minutes by a live person, not a phone tree. Techs mobilized ASAP. -
Problem-Solving Culture
Unlike some service providers who’d rather sell you new equipment (that they often manufacture), Power Plus is passionate about maintaining your existing gear — keeping it up and running and even hunting down risks before they become failures. -
Highest Quality Work & Outcomes
Driven by tireless dedication, Power Plus delivers the very best service, products, and performance. If you’re looking for a reliable partner who works harder for you than anyone else, we’re all in. -
Trusted Nationwide
Fortune 100s, hospitals, data centers, government agencies, and major retailers trust us to keep their systems online. -
Honest & Transparent
No upsell. No fluff. Just the truth — based on our nearly 40 years of experience servicing 100,000+ generators.
When Your Power Can’t
Go Down, We Always Keep
You Up and Running.
At Power Plus, we don’t just “service generators.” We protect businesses, livelihoods, and sometimes lives. We don’t just maintain power systems, we build trust. We’re not perfect, but we’re relentless. We don’t over promise — we over deliver. And we always stay engaged until it’s right to bring you peace of mind.
That’s the Power Plus way. Always has been, always will be.