Kane County, IL — Installation Cost, Permits & Installer Quotes
Standby Generator Installation in Aurora, IL
When the August 2020 derecho left 800,000+ ComEd customers dark and the July 2024 derecho struck Kane County again, Aurora homes were in the path. Real install-cost drivers, honest sizing, and help comparing local installer quotes — what an Aurora homeowner needs before buying a whole-home standby generator.
Free and no obligation. Your request goes to the people who run this site and is read against installer coverage in Aurora. At most one installer ever receives it — never a list of contractors.
Installing a standby generator in Aurora: the short answer
Installing a standby generator in Aurora is a permitted job that goes through the City, and the first thing to get right is that sentence. Aurora spans Kane, DuPage, Will and Kendall Counties, and homeowners routinely start at the county building department — but an incorporated address never does: your permit is issued by the City of Aurora Division of Building & Permits regardless of which county line your lot sits behind, because county departments issue generator permits only for unincorporated land. Aurora has adopted the National Electrical Code, so the install needs a compliant transfer switch and a licensed contractor, and the City sets its fees by schedule and quotes them at application rather than publishing a flat generator figure. Electricity is ComEd and gas is Nicor, with no municipal utility of either kind. For a typical 2,500 sq ft home the usual recommendation is 22kW, and permit application to a commissioned unit normally runs two to eight weeks.
Everything below is the long version — what it costs in this labor market, what Aurora requires on the permit, and how to hold two installer quotes up against each other. If you would rather start by describing your home, the quote form is at the foot of this page.
Standby Generators in Aurora
Aurora is the second-largest city in Illinois and it sits across four county lines, which makes it the market where the jurisdiction question causes the most wasted effort. The permit is municipal — the City of Aurora issues it, whichever county your deed names — and the utilities are ComEd for electricity and Nicor Gas for natural gas across all of it, with no municipal electric utility anywhere in the city. What genuinely varies inside Aurora is the ground: the Fox River runs through the centre of town, and the City maintains an official floodplain map that decides where a generator can be set and how high.
Aurora is on ComEd, and ComEd reaches the western suburbs largely over exposed overhead line, so the storms that recur here are the reason standby power gets bought. The August 2020 derecho swept 80+ mph winds across the metro and cut power to more than 800,000 ComEd customers, with 263,140 still out more than 24 hours later; the July 2024 derecho brought roughly 90 mph downburst gusts across DeKalb, Kane and DuPage Counties, Kane included. Restoration in an event of that size is not a neighbourhood question but a regional one — crews work a damage map that spans counties, which is why houses on the same street come back at different hours. The second driver is the Fox River. A storm large enough to take the grid down is generally the same storm raising the river, and a sump pump without power is the quiet way a basement is lost while the lights are the thing everyone is watching.
Power reliability in Aurora
There is no municipal electric utility in Aurora, so every home draws from ComEd and every outage is restored under ComEd’s regional storm response. That structure is efficient in ordinary weather and slow in extraordinary weather, because the same crews are being allocated across the whole territory at once. Nothing a homeowner does changes the queue position. What a standby generator changes is whether the house is in the queue at all: it carries its own load from within seconds of the failure until the grid returns, whether that is two hours or two days, and it does it whether or not anybody is home to notice the lights go out.
Why Aurora Homeowners Buy Standby Generators
August 2020
The Midwest derecho swept 80+ mph winds across the Chicago metro and left more than 800,000 ComEd customers without power; 263,140 were still out more than 24 hours later. Aurora is served by ComEd, so restoration here follows that same regional storm response.
July 2024
A derecho sequence produced roughly 90 mph downburst gusts across DeKalb, Kane, and DuPage Counties — Kane County included — with impact comparable to the 2020 event. Multi-day, wind-driven outages are a recurring risk on this side of the metro.
Each event above is documented northern Illinois storm history — dated events, not marketing. A standby generator turns on within seconds of an outage — no extension cords, no starting a portable unit in the rain.
Aurora at a Glance
$274,800
Median Home Value
$93,633
Median Household Income
66.4%
Homeownership Rate
58.7% of housing
Single-Family Homes
Aurora city, ACS 2024 5-yr. Census tables B25077 · B19013 · B25003 · B25024. Retrieved 2026-07-01.
What Does a Generator Cost in Aurora?
Aurora is in the Chicago-area labor market. Installed costs run higher than the national averages you will find on generic home improvement sites. For most Aurora homes, a 22kW Generac Guardian installed starts around $12,000 — permits excluded, standard site conditions.
| Generator | Starting Installed Price | Notes |
|---|---|---|
| 14kW Generac Guardian | $10,500 | Essentials or small whole-home. Tight on NG for 4-ton AC. |
| 18kW Generac Guardian | $11,900 | Good whole-home option for smaller homes. |
| 22kW Generac Guardian | $12,000 | Recommended for most 2,500 sq ft homes in Aurora |
| 24kW Generac Guardian | $12,500 | For larger homes or EV charger included. |
| 26kW Generac Guardian | $13,000 | Largest air-cooled residential option. |
Source: GSHA Services (serving Cook, DuPage, Lake, Will, Kane counties). Starting prices — permits excluded. Standard install = 10 ft gas and electric piping above grade. Long gas runs, panel upgrades, or difficult access add cost.
Recommended size for Aurora
For a typical Aurora home — about 2,500 sq ft with gas appliances and a 3–4 ton central AC — the recommended standby generator size is 22kW. That is the right call for most Aurora homes: a home that size needs more load headroom than a 14kW unit can reliably hold during a summer outage.
Air-conditioning startup surge, not square footage, is usually the number that decides the size of the unit — a large compressor draws a substantial surge the moment it kicks on, and that surge is what a generator has to hold. It is worth asking whether a soft-start kit on the AC would let a smaller unit carry the same house, because that trade is frequently cheaper than the next size up and is not something a quote volunteers.
Want the full sizing math — why 14kW runs out of headroom and where 22kW gets its margin? See the complete generator sizing guide.
Still deciding? Weigh the 20-year cost of ownership and ROI, or learn how to compare installer quotes.
Want the number for your own Aurora home?
Size and cost both come down to your actual load and your own lot. Describe the house and we read the request against installer coverage in Kane County — at most one installer ever receives it, and it is never sold to a list of contractors.
Aurora Permit Requirements
A permit is required; the City of Aurora Division of Building & Permits issues building permits. Fees are set by the city fee schedule and quoted at application.
For the metro-wide picture — verified fees by jurisdiction, who can pull the permit, ComEd vs. municipal electric, Nicor meter upgrades, and the inspection sequence — see the Chicago-area generator permits & utility guide.
| Requirement | Detail |
|---|---|
| Electric utility | ComEd |
| Gas utility | Nicor GasAurora is served by Nicor Gas. If adding a generator exceeds your existing meter capacity, contact your gas utility to request a meter capacity review before installation. Allow 3–4 weeks for utility response. |
| Gas-meter clearance — Nicor | 3 ft between the gas meter and any door or window opening.Measured standing in the yard, not on a form. Where the meter sits on the only wall a unit would fit against, this is the constraint that decides placement — settle it before equipment is ordered. |
| Setbacks — NFPA 37 / manufacturer |
|
HOA Note
Aurora city permits do not override HOA covenants (CC&Rs). Some HOAs require board approval, screening requirements, or specific placement for generator installations. Check your CC&Rs before ordering equipment — this is a separate process from the city permit.
How long it takes in Aurora
Two to eight weeks is the normal span from permit application to a commissioned generator in Aurora, and the install itself is the short part — a crew is usually on site for a day or two. The schedule is set by three other things: the City’s permit review, a Nicor meter capacity review if the generator pushes your gas load past what the existing meter supplies (allow three to four weeks), and the inspection at the end. Because Aurora quotes permit fees at application rather than publishing a flat figure, it is worth submitting early enough that the number is known before you are committed to a delivery date. The seasonal point matters more than any of it: demand spikes immediately after every large storm, so a unit ordered in the fall is commissioned before the summer outage season rather than joining the queue behind it.
On the seasonal question specifically — why an off-season install is commissioned and a post-storm one waits — see the best time to install a generator.
What Makes Aurora Different
Aurora homes are served by ComEd for electricity and Nicor Gas for natural gas — there is no municipal electric utility here, so outage restoration follows ComEd's regional storm response.
The Fox River runs through the center of Aurora, and the City maintains an official floodplain map. If your lot is in or near a FEMA flood zone, a standby generator should be sited and elevated above the base flood elevation.
Aurora has adopted the National Electrical Code for electrical work, so a compliant transfer switch and a permitted install by a licensed contractor are required.
Placement is usually decided by the gas meter, not the house: Nicor requires 3 ft of clearance between the meter and any door or window opening, and on a typical side yard the meter is on the only wall a unit would fit against.
Whole-Home Backup for Aurora Homes
A whole-home standby unit connects through an automatic transfer switch, which Aurora’s adopted National Electrical Code requires be a compliant switch installed by a licensed electrician — this is the part of the job that is electrical work rather than equipment. Once it is in, the house transfers itself within seconds of a ComEd failure with no cords and no portable to fuel mid-storm. For a home near the Fox River the specific thing that stays on is the sump pump, through the hours when the yard is draining toward the river and the power is out for the same reason. Refrigeration, heat, and any medical equipment stay live alongside it. Where the lot is in or near a mapped FEMA flood zone, siting matters as much as sizing: the unit should sit above the base flood elevation so it is not standing in the water it exists to pump away.
Whole-home versus essential-circuit coverage is really a transfer-switch decision — see the transfer switch & load-management guide.
Comparing Installer Quotes in Aurora
Aurora quotes tend to differ on three things. The first is the permit: because the City quotes fees at application rather than publishing a flat generator figure, one contractor may carry an allowance and another may leave it out entirely, and the two quotes are not comparable until you ask which. The second is siting — if your lot is in or near the Fox River floodplain, a thorough quote says how the pad will be elevated above the base flood elevation and a thin one does not mention it. The third is sizing: 22kW is the typical recommendation, but ask each installer what load they actually measured and whether a soft-start kit on the air conditioning would let a smaller unit carry the same house. Two bids that look far apart on price often differ on whether these three were priced at all.
Guides to read before you sign
- How to compare installer quotes — a line-by-line checklist, the questions to ask, and the red flags.
- Transfer switches & load management — what stays on, and how a smaller unit can back your whole home.
- The warranty guide — what five years really covers, and what keeps it valid.
- The Chicago-area standby generator guide — costs, sizing, brands, and every city we cover.
Aurora Generator FAQ
Do I need a permit to install a standby generator in Aurora?
Yes. A standby generator install requires a permit from the City of Aurora, and Aurora has adopted the National Electrical Code for electrical work — so the job needs a compliant transfer switch and a permitted install by a licensed contractor. Permit fees are set by the City and quoted at application; confirm the current amount and submittal requirements on Aurora’s permits page before ordering equipment.
What powers a standby generator in Aurora, and who restores my power?
Aurora homes are served by ComEd for electricity and Nicor Gas for natural gas — there is no municipal electric utility here. That means outage restoration follows ComEd’s regional storm response rather than a city crew, which is part of why homeowners on the same street can be restored at different times. A standby generator typically runs on natural gas, so it draws from the Nicor supply already at the house.
My lot is near the Fox River. Does that affect where the generator can go?
It can. The Fox River runs through the center of Aurora and the City maintains an official floodplain map. If your lot sits in or near a FEMA flood zone, a standby generator should be sited and elevated above the base flood elevation so the unit is not standing in high water during exactly the storm that caused the outage. Confirm placement and pad height with your installer during siting.
What size generator does an Aurora home need?
For most homes, 22kW is the typical recommendation. The number that usually drives it is air-conditioning startup load rather than square footage — a large AC compressor draws a substantial surge when it kicks on. An installer should size the unit to your specific home and confirm the load, and a larger unit sometimes calls for a panel upgrade.