Generator Installation in Chicago, IL
Chicago weather does not take days off, and neither should your power. MidWest Electrical Services installs standby generators that automatically kick in during power outages, keeping your home safe, comfortable, and functional no matter what Mother Nature or the grid throws your way.

Extended power outages in Chicago can happen any time of year. Winter ice storms can take down power lines. Summer heat waves strain the grid and trigger rolling outages. High winds from spring and fall storms knock out power to entire neighborhoods. For families with medical equipment, home offices, sump pumps in flood-prone basements, or simply the need to keep food cold and lights on, a standby generator is not a luxury; it is essential infrastructure.
A standby generator is permanently installed outside your home and connected to your natural gas or propane supply. When power goes out, an automatic transfer switch detects the loss and starts the generator within seconds, restoring power to your home without you lifting a finger. When utility power returns, the system switches back automatically and shuts down the generator. You may not even realize the power went out.
Proper sizing is critical to generator performance and longevity. An undersized generator will overload and fail when you need it most. An oversized unit wastes fuel and money. Our electricians calculate your home's essential electrical loads and recommend the right capacity, whether that is a partial-home unit covering critical circuits or a whole-home generator that powers everything. We work with leading brands including Generac, Kohler, and Briggs and Stratton.
What to Expect
Load Assessment & Sizing
We calculate your home's electrical load requirements and determine the right generator size based on which circuits and appliances you need powered during outages.
Site Planning & Permits
We identify the optimal installation location, plan the gas and electrical connections, and pull all required City of Chicago permits.
Professional Installation
Our team installs the generator, automatic transfer switch, gas connection, and all electrical wiring. Installation typically takes 1 to 2 days.
Testing & Commissioning
We simulate a power outage to verify automatic operation, test all connected circuits, and walk you through maintenance basics.
Frequently Asked Questions
How much does a standby generator cost in Chicago?
Standby generator installation in Chicago typically ranges from $5,000 to $15,000 total, including the generator unit, automatic transfer switch, installation, gas connection, and permits. The cost varies based on generator size (measured in kilowatts), brand, and installation complexity. We provide detailed quotes after our free in-home assessment.
Do I need a permit for a generator in Chicago?
Yes. The City of Chicago requires both electrical and gas permits for standby generator installation. There are also setback requirements for the unit's placement relative to property lines, windows, and structures. MidWest handles the complete permit process.
What size generator do I need for my Chicago home?
Generator sizing depends on what you want to power during an outage. A 10 to 14 kW generator handles essential circuits (refrigerator, furnace, sump pump, lights, and a few outlets). A 20 to 24 kW unit can power an entire average-sized Chicago home. We calculate the exact load requirements during our assessment.
Natural gas or propane — which is better?
For most Chicago homes, natural gas is the preferred choice because it is already available at the house and provides unlimited fuel supply without needing a storage tank. Propane is an option for homes without natural gas service, but requires a storage tank and periodic refilling.
Related Services
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Upgrade from outdated fuse boxes to modern 200-amp breaker panels for safety and capacity.
Residential Electrical Repair
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Whole-Home Surge Protection
Protect your entire home from power surges with professional panel-mounted surge protection.
Neighborhoods We Serve
We provide generator installation services throughout Chicago's south and southwest side, including: