Why Generator Maintenance Matters
Generators sit idle most of the year—until a storm or outage hits. Without regular service, small issues turn into major failures.
Routine maintenance helps:
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Ensure reliable startup during outages
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Extend the life of your generator
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Protect your manufacturer warranty
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Improve fuel efficiency
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Prevent costly emergency repairs
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Identify safety risks before they escalate
If your generator hasn’t been serviced in the last 12 months, it’s time.
Choose a Maintenance Package that Fits Your Budget
Generators sit idle most of the year—until a storm or outage hits. Without regular service, small issues turn into major failures. Routine maintenance helps:
Ensure reliable startup during outages
Extend the life of your generator
Protect your manufacturer warranty
If your generator hasn’t been serviced in the last 12 months, it’s time.
Improve fuel efficiency
Prevent costly emergency repairs
Identify safety risks before they escalate
Standard Package (Gold)
25 Point Checklist*
Billable
Priority in High Demand
Onsite Diagnosis
Certified Technician
Automatic Transfer Switch Test
Discounted Labor Rates
No Travel Charges*
Courtesy Visits
* Package price applies to per visit
* Residential only
* Air Cooled and Liquid Cooled up to 150kw
* Consumables not included
* Additional work needed will incur additional costs
Economy Package (Silver)
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25 Point Checklist*
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Billable
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Priority in High Demand
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Onsite Diagnosis
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Certified Technician
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Discounted Labor Rates
* Package price applies per visit
* Residential only
* Air Cooled & Liquid-Cooled up to 80kw
* Consumables not included
* Mileage charge applies
* ATS test not included
* Additional work needed will incur additional costs
Special Package (Bronze)
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Change Oil & Oil Filter
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Check & or Replace Spark-plugs
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Check & or Replace Air Filter
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Check & adjust output voltage
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Check & adjust output frequency
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Check battery health
* Package price applies to per visit
* Residential only
* Air Cooled up to 20KW
* Consumables not included
* Mileage charge applies
* ATS test not included
* Onsite diagnosis not included
* Additional work needed will incur additional costs
Standby Generator Maintenance (Home & Commercial)
Standby generators are automatic systems designed to power your home or business during outages. Because they operate with complex electrical and fuel systems, they require professional care.
Our standby maintenance service includes:
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Full system inspection
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Oil and filter changes
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Air filter replacement (as needed)
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Battery testing and replacement (if needed)
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Fuel system inspection
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Electrical connection checks
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Transfer switch inspection
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Software and diagnostic testing
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Load testing (when applicable)
We service most major brands, including:
Our technicians use professional diagnostic equipment to catch issues early—before they leave you without power.
Portable Generator Maintenance
Portable generators often experience wear from transport, weather exposure, and job site use.
Our portable generator maintenance includes:
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Oil change
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Spark plug inspection
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Air filter service
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Fuel system inspection
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Carburetor evaluation
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Electrical output testing
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Overall safety inspection
Whether you use your portable generator for home backup, job sites, or recreational use, routine service ensures it starts when you need it.
Annual Generator Service Plans
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The best way to avoid emergency repairs is with a scheduled maintenance plan.
We recommend annual generator service at minimum, with more frequent service for high-use or commercial units.
Benefits of a maintenance plan:
Priority scheduling
Reduced risk of unexpected breakdowns
Documentation for warranty compliance
Professional inspection of wear components
Peace of mind during storm season
Don’t wait until the next Connecticut storm warning to find out your generator won’t start.
When Should You Schedule Generator Maintenance?
Schedule service if:
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It’s been 12 months since your last service
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Your generator ran during a recent outage
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You’re hearing unusual sounds
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You see warning lights or error codes
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You notice longer startup times
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You’re preparing for storm season
Preventative maintenance is always more affordable than emergency repair.
Generator Maintenance Near You – Serving All of Connecticut
Generator Systems LLC provides generator maintenance service throughout Connecticut for residential and commercial customers.
Whether you have a whole-home standby generator or a portable unit, our certified technicians are ready to help.
Call 203-401-8819 to schedule service today.
Or use our online form to request maintenance and we’ll follow up.