How Often Should Your Generator Be Serviced and Why It Matters
A standby generator is one of those things you don’t think about often—until you really need it. Whether it’s protecting your home during a storm or keeping your business running during a power outage, a generator is only reliable if it’s properly maintained. As a generator service company, one of the most common questions we hear is: How often should my generator be serviced? The short answer is: regularly.
How Often Does a Generator Need Service?
Most generator manufacturers recommend professional servicing twice per year.
The first visit is your full maintenance service, which typically includes oil and filter changes, spark plug replacement, air and fuel filter inspection, battery testing, and a complete operational and load test. This ensures your generator is mechanically sound and ready to perform.
During the second service visit, the technician focuses on preventive visual inspections and system checks. This typically includes
- Topping off oil and fluids as needed.
- Checking for oil, fuel, or coolant leaks.
- Inspecting belts, hoses, and electrical connections.
- Opening the unit to ensure everything is running properly.
- Checking if snowfall or debris has built up around the generator and affected its proper air flow.
- Looking for signs of mice, insects, or other critters that may have made a home inside the enclosure. Generators sit outdoors year-round, making them an attractive shelter for rodents and debris. Even minor nesting or chewed wiring can lead to major failures if left unnoticed. Simply opening the unit and inspecting it can prevent costly repairs and unexpected breakdowns.
Skipping generator maintenance can lead to problems you won’t discover until the power goes out and by then it’s too late. Here’s why regular service is essential:
- Reliability When You Need It Most: Generators often sit idle for long periods. Without routine maintenance, components can corrode, batteries can fail, and fuel systems can clog. Regular servicing ensures your generator is ready when an outage occurs.
- 2. Longer Equipment Lifespan: Like any engine-powered equipment, generators last longer when they’re properly cared for. Routine maintenance reduces wear and tear, helping you avoid costly repairs or premature replacement.
- Improved Safety: Faulty wiring, fuel leaks, or failing components can pose serious safety risks, including fire hazards or carbon monoxide exposure. Professional inspections help identify and correct these issues before they become dangerous.
- Cost Savings Over Time: Preventive maintenance is far less expensive than emergency repairs. Catching small issues early can prevent major breakdowns and keep your generator operating efficiently.
- Warranty Protection: Many generator manufacturers require documented maintenance to keep warranties valid. Skipping scheduled service could leave you responsible for repair costs that would otherwise be covered.
Your generator is an investment in comfort, safety, and peace of mind—but only if it works when you need it. Regular servicing isn’t just recommended; it’s essential. Scheduling annual maintenance with a qualified generator service company ensures your system stays reliable, efficient, and ready for the unexpected.
If you’re unsure when your generator was last serviced or want to set up a maintenance schedule, now is the perfect time. When the lights go out, you’ll be glad you did.
Ray Klas is dedicated to keeping his Chester neighbors’ home or business safe and warm when the power goes out. He offers 24/7 emergency service, every day, 365 days a year. Contact Ray at 973-270-9071 to schedule your commercial or residential generator maintenance or repair services today.





