Johnny's Generator Maintenance provides professional annual service for standby generators throughout Western New York. Our maintenance service includes new oil and filter, air filter, spark plug, battery / charger testing, output voltage / frequency checks, operational testing and a complete visual inspection.
Our annual generator maintenance service is designed to keep your standby generator operating safely and reliably.
Our maintenance service includes:
✓ Engine oil change
✓ Oil filter replacement
✓ Air filter replacement
✓ Spark plug replacement
✓ Battery testing
✓ Battery charger testing
✓ Voltage and frequency checks
✓ Output verification
✓ Visual inspection for leaks or damage
✓ Operational exercise and overall system inspection
Routine maintenance helps extend generator life and provides peace of mind during power outages.
Need your generator battery replaced?


Skipping maintenance can lead to starting problems, low battery alarms, charging issues, fuel system problems, and unexpected failures during severe weather.
Annual maintenance helps:
• Improve reliability
• Extend engine life
• Reduce the chance of expensive repairs
• Detect problems before they become emergencies
• Ensure your generator is ready when utility power is lost
Preventive maintenance is one of the most important investments you can make in protecting your investment.

Johnny's Generator Maintenance services most residential standby generators, including:
If your generator brand is not listed, contact us to discuss your equipment and maintenance needs.

We proudly provide generator maintenance throughout Buffalo and Western New York, including:
• Amherst
• Clarence
• Williamsville
• Lancaster
• Cheektowaga
• Tonawanda
• Lockport
• Niagara Falls
• Grand Island
• Hamburg
• Orchard Park
• Erie County
• Niagara County
Protect your investment and keep your standby generator ready for the next power outage. Call or Text Johnny's Generator Maintenance today to schedule professional generator maintenance.
Call or text 716-288-5512 to schedule service.
Open today | 07:00 am – 07:00 pm |
Please reach us at 716-288-5512 if you cannot find an answer to your question.
Most residential standby generators should be serviced once per year, or after extended run time during a power outage. Annual maintenance helps ensure reliability, longevity, and proper operation when you need it most.
Our maintenance service includes:
Engine oil change
Oil filter replacement
Air filter replacement
Spark plug replacement
Battery testing
Battery charger testing
Voltage and frequency checks
Output verification
Visual inspection for leaks or damage
Operational exercise and overall system inspection
Standard annual generator maintenance is $165.
It is recommended to replace your generator battery every 3-5 years. Although it may still be testing weekly during the summer months, once the temperatures drop so do the cranking amps.
Most major brands including Generac, Guardian, Watchdog, Honeywell, Siemens, Briggs & Stratton, Millbank, Cummins, and more. Please feel free to reach out if you are unsure what kind of generator you have.
No, all work is done outside at the unit. If you will not be home, please ensure the unit is accessible: ex, any gates unlocked.
We specialize in home-standby automatic backup generators and unfortunately do not service portable gasoline powered generators.
JOHNNY'S GENERATOR MAINTENANCE
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JG RECS LLC DBA Johnny's Generator Maintenance
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