ElectricalHire a professionalBest in fall
Professional generator service
Tech checks the transfer switch, valves, and load test — before storm season.
How often
Once a year
Time needed
2 hrs (pro)
Typical cost
$200–$400
Helps avoid
~$2,500
How to do it
This job is best handled by a licensed professional — HomeGuard can help you find one near you.
Common questions
How often should you professional generator service?
Once a year. Best in fall.
How much does it cost to professional generator service?
Typically $200 to $400 in parts and supplies. Skipping it risks roughly $2,500 in repair or replacement costs.
How long does it take?
About 2 hrs (pro).
Can I professional generator service myself?
This one should be done by a licensed professional. It involves systems where a mistake is dangerous or costly.
Which of these does your home actually need?
Answer a few questions about your home and HomeGuard builds your personalized maintenance schedule — the right tasks, at the right time of year, for your appliances and climate.
Build my free scheduleMore electrical maintenance
Run generator test under load
Every month · 20 min
Change generator oil & filter
Once a year · 1 hr
Check fuel supply & stabilizer
Twice a year · 20 min
Test generator starting battery
Once a year · 30 min
Inspect electrical panel
Once a year · 1 hr (pro)
Test GFCI & AFCI outlets
Every month · 15 min