How Much Does Generator Installation Cost in Chicago, IL?
A 22 kW whole-house generator costs $10,000 – $16,000 installed in Chicago (15-25% above the IL average due to city electrical code, union labor, and space constraints). The primary outage risk is severe thunderstorms and tree-related outages. ComEd serves the area with approximately 12 hours of outages per year.
Generator Installation Cost in Chicago
| Setup | Size | Cost in Chicago |
|---|---|---|
| Essential circuits | 10-16 kW | $6,500 – $10,500 |
| Whole house | 20-22 kW | $10,000 – $16,000 |
| Large home | 24-48 kW | $15,500 – $24,000 |
Chicago's dense tree canopy (3rd most in the US), older grid infrastructure, and severe weather combine to create regular power outages. ComEd serves the metro, and the city's separate electrical code adds complexity and cost to installations.
Not sure what size you need? Use our sizing guide or interactive calculator for a personalized recommendation. For the full national breakdown, see our installation cost guide.
Chicago-Specific Installation Requirements
Local Code — Cook County
Chicago has its own electrical code (stricter than the NEC). City-licensed electricians required. Space constraints in bungalows and row houses.
Permits
Permit cost: $150 – $400. Timeline: 2-4 weeks. Your installer handles filing and inspection.
Preferred Fuel: Natural Gas
Nicor Gas and Peoples Gas serve the Chicago area. Abundant and cheap natural gas.
See statewide Illinois costs and requirements for comparison.
Power Outage Risk in Chicago
2
Outages/year
6h
Avg duration
Severe thunderstorms and tree-related outages
Primary risk
ComEd
Local utility
The August 2020 derecho hit the Chicago metro with 100+ mph winds, causing massive tree damage and hundreds of thousands of outages.
Find Generator Installers in Chicago
HomeGen connects you with certified installers in Chicago and surrounding areas including Aurora, Naperville and Rockford. Get 2-3 quotes to compare pricing — installation costs vary by up to $3,000 between contractors in the same city.
How Much Does a Home Generator Cost?
Get an instant estimate based on your home size and power needs.
Recommended size
22 kW
Estimated cost
$7,700 – $12,100
Includes equipment, installation, transfer switch, and permits
As low as $83/month with approved financing
Prices vary by location. Enter your ZIP code for local estimates.
FAQ — Generator Installation in Chicago
How much does a generator cost in Chicago?
A 22 kW generator costs $10,000-$16,000 installed. Chicago's separate electrical code and union labor add 15-25% to suburban pricing.
Does Chicago require different electricians?
Yes. Chicago has its own electrical code, separate from the NEC. You need a city-licensed electrician, not just a state-licensed one.
Natural gas or propane?
Natural gas via Peoples Gas (city) or Nicor Gas (suburbs). Propane is almost never needed in the Chicago area.
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