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IL
Home Generator Cost in Illinois
A whole home standby generator costs $9,000–$23,000 installed in Illinois, with most homeowners paying around $15,000 for a 20–26 kW unit. Labor rates in Illinois average $90–$130/hr, and permits typically cost $200–$450.
Low Estimate
$9,000
Installed
Typical Cost
$15,000
Installed
High Estimate
$23,000
Installed
Labor & Permit Costs
Labor Rate$90–$130/hr
Permit Cost$200–$450
Recommended Size20–26 kW
Climate & Recommendations
Humid Continental
Illinois winters bring ice storms and blizzards that regularly cause multi-day outages. Natural gas is widely available. Chicago metro installations carry a labor premium.
Generator Costs in Major Illinois Cities
Chicago, IL
Chicago labor rates are significantly above state average; budget an additional 20–30% for city installations.
Springfield, IL
Springfield has moderate installation costs with good access to both Kohler and Generac dealers.
Naperville, IL
Naperville's affluent suburbs drive demand for premium Kohler installations.
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