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Solar Installation in Illinois

702 zip codes with active providers out of 1,375 total (51.1% coverage). Ranked #7 of 24 states by avg bid.

State Avg

$91.73

National Avg

$90.89

Coverage

51.1%

vs National

+0.9%

State vs National Average

Illinois: $92+0.9% vs National Avg

Dashed line = National Avg ($91)

Solar Installation Costs in Illinois

Typical cost range: $15,000–$30,000 before tax credits (6–10 kW system)

Residential solar system (6 kW)$12,000–$18,000
Residential solar system (10 kW)$20,000–$30,000
Battery storage (Tesla Powerwall or equivalent)$10,000–$16,000
Solar panel removal and reinstallation (for reroofing)$1,500–$3,000
EV charger add-on with solar$500–$1,500
Ground-mounted solar system$20,000–$40,000

When to Hire a Solar Installation

Your monthly electric bill is consistently $150+ and your roof gets good south-facing sun exposure with minimal shading
Your roof is in good condition with at least 15 years of life remaining — you don't want to remove panels for reroofing
You want to lock in the 30% federal solar Investment Tax Credit (ITC) while it's still available at the full rate
You're building a new home and can integrate solar at a lower installed cost during construction

What to Look For

NABCEP (North American Board of Certified Energy Practitioners) certification — the gold standard for solar installers
A site-specific design based on your actual roof orientation, pitch, shading analysis (using tools like Aurora or Helioscope), and real energy usage
Experience with your local utility's interconnection process, permitting requirements, and net metering policies
Transparent pricing that separates equipment, labor, permitting, and any financing costs — watch for hidden dealer fees

Common Solar Installation Problems in Illinois

Oversized or undersized systems because the installer used generic estimates instead of actual utility bills and site-specific production modeling

Roof leaks at panel mounting points from improper flashing — this is the most common installation defect

Inverter failures at 10–15 years requiring $1,000–$3,000 replacement (microinverters last longer but cost more upfront)

Production underperformance from shading that wasn't properly accounted for in the design phase

Utility interconnection delays — some utilities take months to approve and install the net meter

Misleading financing terms that make solar appear free but include escalator clauses or balloon payments

Questions to Ask Before Hiring a Solar Installation in Illinois

Can you show me a production model specific to my roof, and what assumptions does it use?

Reputable installers use satellite imagery and tools like Aurora Solar or Helioscope to model your specific roof, orientation, and shading. If they're quoting from generic averages or square footage alone, the estimate is unreliable.

What's my all-in cost after the federal tax credit, and what's my expected payback period?

The 30% federal ITC makes solar economics work for most homeowners. But you need to qualify (have enough tax liability). Ask for the total cost, net cost after credits, and a realistic payback calculation based on your actual rates and usage.

What happens if I need to reroof in 10–15 years?

Removing and reinstalling solar panels costs $1,500–$3,000. If your roof is older than 10 years, replacing it before solar installation saves money long-term. An honest installer will tell you this even though it delays their sale.

Red Flags When Hiring a Solar Installation

  • Pressures you to sign today with 'limited-time' discounts or claims the tax credit is expiring soon — the 30% ITC is locked through 2032
  • Cannot provide a site-specific production estimate using satellite imagery and shading analysis tools
  • Pushes a lease or PPA without clearly explaining purchase as an option — leases often have less favorable economics for the homeowner
  • No NABCEP certification and cannot show a portfolio of local installations with references
  • Quotes seem too good to be true — check for hidden dealer fees, escalator clauses in financing, or omitted costs like permit fees and interconnection

DIY vs Hiring a Professional Solar Installation

DIY solar is technically possible but inadvisable for most homeowners. Grid-tied solar requires electrical permits, interconnection agreements with your utility, structural engineering review, and compliance with NEC rapid-shutdown requirements. Incorrect installation can void panel warranties, cause roof leaks, create fire hazards from improper wiring, and may not qualify for the federal tax credit if not installed by a licensed contractor. The labor portion of solar installation is only about 10% of total cost — the savings from DIY don't justify the risks, complexity, and potential loss of the 30% federal tax credit.

Solar Installation Safety Tips

  • Solar panels produce electricity whenever the sun is shining and cannot be turned off — working on a solar array without proper training creates electrocution risk
  • Rooftop work without proper fall protection is dangerous — ensure your installer uses harnesses and anchor points per OSHA standards
  • Battery storage systems (lithium-ion) require proper ventilation and fire suppression considerations — they should be installed in compliance with local fire codes

Best Time to Hire a Solar Installation in Illinois

Solar installation can happen year-round in most climates, but late summer and fall are often the best times to sign contracts — you'll be installed before winter utility bills peak and positioned for maximum spring/summer production. The solar industry is busiest in spring and early summer, which means longer wait times and less scheduling flexibility. Winter installations work fine in most states but may take longer due to shorter daylight hours. If you're planning a roof replacement, do that first — removing and reinstalling panels costs $1,500–$3,000.

Solar Installation Licensing in Illinois

Solar installers need an electrical contractor's license in most states, with some states requiring additional solar-specific certifications. Many jurisdictions require separate permits for electrical, structural, and utility interconnection. NABCEP certification is voluntary but highly recommended as a quality indicator. Verify your installer carries liability insurance, workers' compensation, and is registered with your state's contractor licensing board.

City-by-City Costs (521 cities)

CityAvg BidMax BidMin BidZip Codes
Winnetka$105.00$105.00$105.001
Wilmette$105.00$105.00$105.001
Winthrop Harbor$105.00$105.00$105.001
Wheeling$105.00$105.00$105.001
Vernon Hills$105.00$105.00$105.001
Arlington Heights$105.00$105.00$105.003
Wadsworth$105.00$105.00$105.001
Techny$105.00$105.00$105.001
Union$105.00$105.00$105.001
Spring Grove$105.00$105.00$105.001
Round Lake$105.00$105.00$105.001
Russell$105.00$105.00$105.001
Schaumburg$105.00$105.00$105.007
Rolling Meadows$105.00$105.00$105.001
Prospect Heights$105.00$105.00$105.001
Richmond$105.00$105.00$105.001
Ringwood$105.00$105.00$105.001
Palatine$105.00$105.00$105.007
Park Ridge$105.00$105.00$105.001
Niles$105.00$105.00$105.001
Buffalo Grove$105.00$105.00$105.001
Northbrook$105.00$105.00$105.002
Morton Grove$105.00$105.00$105.001
Mount Prospect$105.00$105.00$105.001
Mundelein$105.00$105.00$105.001
McHenry$105.00$105.00$105.002
Marengo$105.00$105.00$105.001
Lincolnshire$105.00$105.00$105.001
Lake Forest$105.00$105.00$105.001
Lake In The Hills$105.00$105.00$105.001
Lake Villa$105.00$105.00$105.001
Lake Zurich$105.00$105.00$105.001
Libertyville$105.00$105.00$105.001
Kenilworth$105.00$105.00$105.001
Lake Bluff$105.00$105.00$105.001
Huntley$105.00$105.00$105.001
Ingleside$105.00$105.00$105.001
Island Lake$105.00$105.00$105.001
Hebron$105.00$105.00$105.001
Cary$105.00$105.00$105.001
Highland Park$105.00$105.00$105.001
Highwood$105.00$105.00$105.001
Hoffman Estates$105.00$105.00$105.003
Golf$105.00$105.00$105.001
Grayslake$105.00$105.00$105.001
Gurnee$105.00$105.00$105.001
Harvard$105.00$105.00$105.001
Glencoe$105.00$105.00$105.001
Glenview$105.00$105.00$105.002
Fox Lake$105.00$105.00$105.001
Fox River Grove$105.00$105.00$105.001
Deerfield$105.00$105.00$105.001
Crystal Lake$105.00$105.00$105.003
Wonder Lake$105.00$105.00$105.001
Woodstock$105.00$105.00$105.001
Antioch$105.00$105.00$105.001
Wauconda$105.00$105.00$105.001
Barrington$105.00$105.00$105.002
Algonquin$105.00$105.00$105.001
Wilmington$90.00$90.00$90.001
Addison$90.00$90.00$90.001
Albany$90.00$90.00$90.001
Alsip$90.00$90.00$90.001
Amboy$90.00$90.00$90.001
Anchor$90.00$90.00$90.001
Bedford Park$90.00$90.00$90.001
Beaverville$90.00$90.00$90.001
Batavia$90.00$90.00$90.001
Bartlett$90.00$90.00$90.001
Barstow$90.00$90.00$90.001
Baileyville$90.00$90.00$90.001
Aurora$90.00$90.00$90.009
Ashton$90.00$90.00$90.001
University Park$90.00$90.00$90.001
Utica$90.00$90.00$90.001
Van Orin$90.00$90.00$90.001
Varna$90.00$90.00$90.001
Berkeley$90.00$90.00$90.001
Berwyn$90.00$90.00$90.001
Big Rock$90.00$90.00$90.001
Blackstone$90.00$90.00$90.001
Bloomingdale$90.00$90.00$90.002
Bloomington$90.00$90.00$90.003
Blue Island$90.00$90.00$90.001
Bolingbrook$90.00$90.00$90.002
Bonfield$90.00$90.00$90.001
Bourbonnais$90.00$90.00$90.001
Annawan$90.00$90.00$90.001
Arlington$90.00$90.00$90.001
Caledonia$90.00$90.00$90.001
Calumet City$90.00$90.00$90.001
Campus$90.00$90.00$90.001
Capron$90.00$90.00$90.001
Carbon Cliff$90.00$90.00$90.001
Cornell$90.00$90.00$90.001
Cortland$90.00$90.00$90.001
Country Club Hills$90.00$90.00$90.001
Crescent City$90.00$90.00$90.001
Crest Hill$90.00$90.00$90.001
Creston$90.00$90.00$90.001
Crete$90.00$90.00$90.001
Cropsey$90.00$90.00$90.001
Cullom$90.00$90.00$90.001
Chebanse$90.00$90.00$90.001
Chenoa$90.00$90.00$90.001
Colona$90.00$90.00$90.001
Compton$90.00$90.00$90.001
Congerville$90.00$90.00$90.001
Cooksville$90.00$90.00$90.001
Cordova$90.00$90.00$90.001
Chicago Ridge$90.00$90.00$90.001
Chillicothe$90.00$90.00$90.001
Cicero$90.00$90.00$90.001
Cissna Park$90.00$90.00$90.001
Clare$90.00$90.00$90.001
Clarendon Hills$90.00$90.00$90.001
Claytonville$90.00$90.00$90.001
Clifton$90.00$90.00$90.001
Coal City$90.00$90.00$90.001
Coal Valley$90.00$90.00$90.001
Cabery$90.00$90.00$90.001
Dakota$90.00$90.00$90.001
Dalzell$90.00$90.00$90.001
Dana$90.00$90.00$90.001
Danforth$90.00$90.00$90.001
Danvers$90.00$90.00$90.001
Darien$90.00$90.00$90.001
Davis$90.00$90.00$90.001
Davis Junction$90.00$90.00$90.001
Deer Grove$90.00$90.00$90.001
Dekalb$90.00$90.00$90.001
Depue$90.00$90.00$90.001
Des Plaines$90.00$90.00$90.004
Dewey$90.00$90.00$90.001
Dixon$90.00$90.00$90.001
Dolton$90.00$90.00$90.001
Colfax$90.00$90.00$90.001
Donovan$90.00$90.00$90.001
Dover$90.00$90.00$90.001
Downers Grove$90.00$90.00$90.002
Downs$90.00$90.00$90.001
Dundee$90.00$90.00$90.001
Durand$90.00$90.00$90.001
Dwight$90.00$90.00$90.001
Earlville$90.00$90.00$90.001
East Dubuque$90.00$90.00$90.001
East Lynn$90.00$90.00$90.001
East Moline$90.00$90.00$90.001
El Paso$90.00$90.00$90.001
Elburn$90.00$90.00$90.001
Eldena$90.00$90.00$90.001
Eleroy$90.00$90.00$90.001
Elgin$90.00$90.00$90.004
Elizabeth$90.00$90.00$90.001
Elk Grove Village$90.00$90.00$90.002
Elliott$90.00$90.00$90.001
Ellsworth$90.00$90.00$90.001
Elmhurst$90.00$90.00$90.001
Elmwood Park$90.00$90.00$90.001
Elwood$90.00$90.00$90.001
Emington$90.00$90.00$90.001
Eola$90.00$90.00$90.001
Erie$90.00$90.00$90.001
Esmond$90.00$90.00$90.001
Essex$90.00$90.00$90.001
Eureka$90.00$90.00$90.001
Evanston$90.00$90.00$90.004
Evergreen Park$90.00$90.00$90.001
Fairbury$90.00$90.00$90.001
Glen Ellyn$90.00$90.00$90.002
Glendale Heights$90.00$90.00$90.001
Fenton$90.00$90.00$90.001
Fisher$90.00$90.00$90.001
Flanagan$90.00$90.00$90.001
Flossmoor$90.00$90.00$90.001
Foosland$90.00$90.00$90.001
Forest Park$90.00$90.00$90.001
Forrest$90.00$90.00$90.001
Forreston$90.00$90.00$90.001
Fox Valley$90.00$90.00$90.001
Frankfort$90.00$90.00$90.001
Franklin Grove$90.00$90.00$90.001
Franklin Park$90.00$90.00$90.001
Freeport$90.00$90.00$90.001
Fulton$90.00$90.00$90.001
Hampton$90.00$90.00$90.001
Hanover$90.00$90.00$90.001
Hanover Park$90.00$90.00$90.001
Harmon$90.00$90.00$90.001
Galena$90.00$90.00$90.001
Galt$90.00$90.00$90.001
Garden Prairie$90.00$90.00$90.001
Gardner$90.00$90.00$90.001
Geneseo$90.00$90.00$90.001
Geneva$90.00$90.00$90.001
Genoa$90.00$90.00$90.001
German Valley$90.00$90.00$90.001
Gibson City$90.00$90.00$90.001
Gifford$90.00$90.00$90.001
Gilberts$90.00$90.00$90.001
Gilman$90.00$90.00$90.001
Bristol$90.00$90.00$90.001
Herscher$90.00$90.00$90.001
Hickory Hills$90.00$90.00$90.001
Hillsdale$90.00$90.00$90.001
Hillside$90.00$90.00$90.001
Hinckley$90.00$90.00$90.001
Hines$90.00$90.00$90.001
Hinsdale$90.00$90.00$90.002
Glenwood$90.00$90.00$90.001
Grand Ridge$90.00$90.00$90.001
Grant Park$90.00$90.00$90.001
Granville$90.00$90.00$90.001
Graymont$90.00$90.00$90.001
Great Lakes$90.00$90.00$90.001
Gridley$90.00$90.00$90.001
Hampshire$90.00$90.00$90.001
Hennepin$90.00$90.00$90.001
Henry$90.00$90.00$90.001
Carlock$90.00$90.00$90.001
Carol Stream$90.00$90.00$90.007
Carpentersville$90.00$90.00$90.001
Cedar Point$90.00$90.00$90.001
Cedarville$90.00$90.00$90.001
Chadwick$90.00$90.00$90.001
Chana$90.00$90.00$90.001
Channahon$90.00$90.00$90.001
Chatsworth$90.00$90.00$90.001
Braceville$90.00$90.00$90.001
Bradford$90.00$90.00$90.001
Bradley$90.00$90.00$90.001
Braidwood$90.00$90.00$90.001
Bridgeview$90.00$90.00$90.001
Holcomb$90.00$90.00$90.001
Homer Glen$90.00$90.00$90.001
Hometown$90.00$90.00$90.001
Homewood$90.00$90.00$90.001
Hoopeston$90.00$90.00$90.001
Hooppole$90.00$90.00$90.001
Hudson$90.00$90.00$90.001
Iroquois$90.00$90.00$90.001
Itasca$90.00$90.00$90.001
Joliet$90.00$90.00$90.006
Justice$90.00$90.00$90.001
Kaneville$90.00$90.00$90.001
Kankakee$90.00$90.00$90.001
Harvey$90.00$90.00$90.001
Harwood Heights$90.00$90.00$90.001
Hazel Crest$90.00$90.00$90.001
Leonore$90.00$90.00$90.001
Lexington$90.00$90.00$90.001
Kasbeer$90.00$90.00$90.001
Kempton$90.00$90.00$90.001
Kent$90.00$90.00$90.001
Kingston$90.00$90.00$90.001
Kinsman$90.00$90.00$90.001
Kirkland$90.00$90.00$90.001
La Grange$90.00$90.00$90.001
La Grange Park$90.00$90.00$90.001
La Moille$90.00$90.00$90.001
La Rose$90.00$90.00$90.001
La Salle$90.00$90.00$90.001
Lacon$90.00$90.00$90.001
Ladd$90.00$90.00$90.001
Lafox$90.00$90.00$90.001
Loves Park$90.00$90.00$90.004
Lowpoint$90.00$90.00$90.001
Ludlow$90.00$90.00$90.001
Lyndon$90.00$90.00$90.001
Lyons$90.00$90.00$90.001
Machesney Park$90.00$90.00$90.001
Magnolia$90.00$90.00$90.001
Lanark$90.00$90.00$90.001
Lansing$90.00$90.00$90.001
Le Roy$90.00$90.00$90.001
Leaf River$90.00$90.00$90.001
Lee$90.00$90.00$90.001
Lee Center$90.00$90.00$90.001
Leland$90.00$90.00$90.001
Lemont$90.00$90.00$90.001
Lena$90.00$90.00$90.001
Maple Park$90.00$90.00$90.001
Mark$90.00$90.00$90.001
Markham$90.00$90.00$90.001
Marseilles$90.00$90.00$90.001
Martinton$90.00$90.00$90.001
Matteson$90.00$90.00$90.001
Maywood$90.00$90.00$90.001
Mazon$90.00$90.00$90.001
Lincolnwood$90.00$90.00$90.001
Lindenwood$90.00$90.00$90.001
Lisle$90.00$90.00$90.001
Lockport$90.00$90.00$90.001
Loda$90.00$90.00$90.001
Lombard$90.00$90.00$90.001
Long Point$90.00$90.00$90.001
Lostant$90.00$90.00$90.001
Metamora$90.00$90.00$90.001
Midlothian$90.00$90.00$90.001
Milford$90.00$90.00$90.001
Millbrook$90.00$90.00$90.001
Milledgeville$90.00$90.00$90.001
Millington$90.00$90.00$90.001
Mineral$90.00$90.00$90.001
Minonk$90.00$90.00$90.001
Minooka$90.00$90.00$90.001
Mahomet$90.00$90.00$90.001
Malden$90.00$90.00$90.001
Malta$90.00$90.00$90.001
Manhattan$90.00$90.00$90.001
Manlius$90.00$90.00$90.001
Mansfield$90.00$90.00$90.001
Manteno$90.00$90.00$90.001
Monee$90.00$90.00$90.001
Monroe Center$90.00$90.00$90.001
Montgomery$90.00$90.00$90.001
Mooseheart$90.00$90.00$90.001
Morris$90.00$90.00$90.001
Morrison$90.00$90.00$90.001
Mount Carroll$90.00$90.00$90.001
Mount Morris$90.00$90.00$90.001
Nachusa$90.00$90.00$90.001
Naperville$90.00$90.00$90.006
Mc Connell$90.00$90.00$90.001
Mc Nabb$90.00$90.00$90.001
Medinah$90.00$90.00$90.001
Melrose Park$90.00$90.00$90.003
Melvin$90.00$90.00$90.001
Mendota$90.00$90.00$90.001
Bellwood$90.00$90.00$90.001
Belvidere$90.00$90.00$90.001
Bensenville$90.00$90.00$90.002
Benson$90.00$90.00$90.001
Normal$90.00$90.00$90.001
North Aurora$90.00$90.00$90.001
North Chicago$90.00$90.00$90.001
Oak Brook$90.00$90.00$90.001
Oak Forest$90.00$90.00$90.001
Oak Lawn$90.00$90.00$90.002
Oak Park$90.00$90.00$90.004
Odell$90.00$90.00$90.001
Oglesby$90.00$90.00$90.001
Mokena$90.00$90.00$90.001
Moline$90.00$90.00$90.001
Momence$90.00$90.00$90.001
Neponset$90.00$90.00$90.001
New Bedford$90.00$90.00$90.001
New Lenox$90.00$90.00$90.001
Newark$90.00$90.00$90.001
Nora$90.00$90.00$90.001
Broadview$90.00$90.00$90.001
Brookfield$90.00$90.00$90.001
Buckingham$90.00$90.00$90.001
Buckley$90.00$90.00$90.001
Buda$90.00$90.00$90.001
Burbank$90.00$90.00$90.001
Bureau$90.00$90.00$90.001
Burlington$90.00$90.00$90.001
Byron$90.00$90.00$90.001
Beecher$90.00$90.00$90.001
Bellflower$90.00$90.00$90.001
Posen$90.00$90.00$90.001
Potomac$90.00$90.00$90.001
Ohio$90.00$90.00$90.001
Olympia Fields$90.00$90.00$90.001
Onarga$90.00$90.00$90.001
Orangeville$90.00$90.00$90.001
Oregon$90.00$90.00$90.001
Orland Park$90.00$90.00$90.002
Osco$90.00$90.00$90.001
Oswego$90.00$90.00$90.001
Ottawa$90.00$90.00$90.001
Palos Heights$90.00$90.00$90.001
Palos Hills$90.00$90.00$90.001
Palos Park$90.00$90.00$90.001
Park Forest$90.00$90.00$90.001
Paw Paw$90.00$90.00$90.001
River Grove$90.00$90.00$90.001
Riverdale$90.00$90.00$90.001
Paxton$90.00$90.00$90.001
Pearl City$90.00$90.00$90.001
Pecatonica$90.00$90.00$90.001
Pembroke Township$90.00$90.00$90.001
Penfield$90.00$90.00$90.001
Peotone$90.00$90.00$90.001
Peru$90.00$90.00$90.001
Piper City$90.00$90.00$90.001
Plainfield$90.00$90.00$90.003
Plano$90.00$90.00$90.001
Polo$90.00$90.00$90.001
Pontiac$90.00$90.00$90.001
Poplar Grove$90.00$90.00$90.001
Port Byron$90.00$90.00$90.001
Rome$90.00$90.00$90.001
Romeoville$90.00$90.00$90.001
Roscoe$90.00$90.00$90.001
Roselle$90.00$90.00$90.001
Rossville$90.00$90.00$90.001
Princeton$90.00$90.00$90.001
Prophetstown$90.00$90.00$90.001
Putnam$90.00$90.00$90.001
Rankin$90.00$90.00$90.001
Ransom$90.00$90.00$90.001
Rantoul$90.00$90.00$90.001
Rapids City$90.00$90.00$90.001
Reddick$90.00$90.00$90.001
Richton Park$90.00$90.00$90.001
Ridott$90.00$90.00$90.001
River Forest$90.00$90.00$90.001
Scales Mound$90.00$90.00$90.001
Schiller Park$90.00$90.00$90.001
Seatonville$90.00$90.00$90.001
Secor$90.00$90.00$90.001
Seneca$90.00$90.00$90.001
Serena$90.00$90.00$90.001
Riverside$90.00$90.00$90.001
Roanoke$90.00$90.00$90.001
Robbins$90.00$90.00$90.001
Roberts$90.00$90.00$90.001
Rochelle$90.00$90.00$90.001
Rock City$90.00$90.00$90.001
Rock Falls$90.00$90.00$90.001
Rock Island$90.00$90.00$90.001
Rockford$90.00$90.00$90.0014
Rockton$90.00$90.00$90.001
Shirley$90.00$90.00$90.001
Shorewood$90.00$90.00$90.001
Sibley$90.00$90.00$90.001
Silvis$90.00$90.00$90.001
Skokie$90.00$90.00$90.002
Somonauk$90.00$90.00$90.001
South Beloit$90.00$90.00$90.001
South Elgin$90.00$90.00$90.001
South Holland$90.00$90.00$90.001
Rutland$90.00$90.00$90.001
Saint Anne$90.00$90.00$90.001
Saint Charles$90.00$90.00$90.002
Sandwich$90.00$90.00$90.001
Saunemin$90.00$90.00$90.001
Savanna$90.00$90.00$90.001
Saybrook$90.00$90.00$90.001
Steward$90.00$90.00$90.001
Stillman Valley$90.00$90.00$90.001
Stockton$90.00$90.00$90.001
Stone Park$90.00$90.00$90.001
Strawn$90.00$90.00$90.001
Streamwood$90.00$90.00$90.001
Streator$90.00$90.00$90.001
Sublette$90.00$90.00$90.001
Sugar Grove$90.00$90.00$90.001
Seward$90.00$90.00$90.001
Shabbona$90.00$90.00$90.001
Shannon$90.00$90.00$90.001
Sheffield$90.00$90.00$90.001
Sheldon$90.00$90.00$90.001
Sheridan$90.00$90.00$90.001
Shirland$90.00$90.00$90.001
Thomasboro$90.00$90.00$90.001
Thomson$90.00$90.00$90.001
Thornton$90.00$90.00$90.001
Tinley Park$90.00$90.00$90.002
Tiskilwa$90.00$90.00$90.001
Toluca$90.00$90.00$90.001
Tonica$90.00$90.00$90.001
Towanda$90.00$90.00$90.001
Triumph$90.00$90.00$90.001
Troy Grove$90.00$90.00$90.001
South Wilmington$90.00$90.00$90.001
Sparland$90.00$90.00$90.001
Spring Valley$90.00$90.00$90.001
Standard$90.00$90.00$90.001
Steger$90.00$90.00$90.001
Sterling$90.00$90.00$90.001
Armstrong$90.00$90.00$90.001
Aroma Park$90.00$90.00$90.001
Arrowsmith$90.00$90.00$90.001
Verona$90.00$90.00$90.001
Villa Park$90.00$90.00$90.001
Walnut$90.00$90.00$90.001
Warren$90.00$90.00$90.001
Warrenville$90.00$90.00$90.001
Wasco$90.00$90.00$90.001
Washburn$90.00$90.00$90.001
Waterman$90.00$90.00$90.001
Watseka$90.00$90.00$90.001
Summit Argo$90.00$90.00$90.001
Sycamore$90.00$90.00$90.001
Tampico$90.00$90.00$90.001
Thawville$90.00$90.00$90.001
Ashkum$90.00$90.00$90.001
Winfield$90.00$90.00$90.001
Winnebago$90.00$90.00$90.001
Apple River$90.00$90.00$90.001
Winslow$90.00$90.00$90.001
Zion$90.00$90.00$90.001
West Brooklyn$90.00$90.00$90.001
West Chicago$90.00$90.00$90.002
Westchester$90.00$90.00$90.001
Western Springs$90.00$90.00$90.001
Westmont$90.00$90.00$90.001
Wheaton$90.00$90.00$90.002
Willow Springs$90.00$90.00$90.001
Willowbrook$90.00$90.00$90.001
Ancona$90.00$90.00$90.001
Union Hill$90.00$90.00$90.001
Cherry$90.00$90.00$90.001
Cherry Valley$90.00$90.00$90.001
Chicago$90.00$90.00$90.0084
Chicago Heights$90.00$90.00$90.002
Wood Dale$90.00$90.00$90.002
Woodland$90.00$90.00$90.001
Woodridge$90.00$90.00$90.001
Woosung$90.00$90.00$90.001
Worth$90.00$90.00$90.001
Wyanet$90.00$90.00$90.001
Yorkville$90.00$90.00$90.001
Waukegan$90.00$90.00$90.003
Wayne$90.00$90.00$90.001
Wedron$90.00$90.00$90.001
Wellington$90.00$90.00$90.001
Wenona$90.00$90.00$90.001

Showing 521 of 521 rows

Coverage Gaps

786 zip codes without coverage

These areas in Illinois have no active solar installation providers.

AbingdonAdairAlbersAlbionAledoAlexisAlhambraAllenAllendaleAllertonAlmaAlortonAlphaAlseyAltamontAlto passAltonAltonaAlvinAndalusiaAndoverAndrewAnnaAnnapolisArcadiaArcolaArenzvilleArmingtonArthurAshleyAshmoreAssumptionAstoriaAtkinsonAtlantaAtterburyAtwaterAtwoodAuburnAugustaAvaAvistonAvonBaderBaldwinBarclayBardolphBarnhillBarrBarry

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Frequently Asked Questions

How much does solar installation cost in Illinois?

The average bid for solar installation in Illinois is $91.73, compared to the national average of $90.89. Prices range from $90 to $105 depending on location. Typical cost range: $15,000–$30,000 before tax credits (6–10 kW system).

What cities in Illinois have solar installation coverage?

Illinois has solar installation providers in 521 cities across 702 zip codes, representing 51.1% coverage of the state. Top cities include Winnetka, Wilmette, Winthrop Harbor, Wheeling, Vernon Hills.

How does Illinois compare to the national average for solar installation?

Illinois is 0.9% above the national average for solar installation. It ranks #7 out of 24 states by average bid.

Are there areas in Illinois without solar installation providers?

Yes, 786 zip codes in Illinois currently have no active solar installation providers. Underserved cities include Abingdon, Adair, Albers, Albion, Aledo.

When should I hire a solar installation in Illinois?

Your monthly electric bill is consistently $150+ and your roof gets good south-facing sun exposure with minimal shading Solar installation can happen year-round in most climates, but late summer and fall are often the best times to sign contracts — you'll be installed before winter utility bills peak and positioned for maximum spring/summer production.

What should I look for in a solar installation in Illinois?

NABCEP (North American Board of Certified Energy Practitioners) certification — the gold standard for solar installers. A site-specific design based on your actual roof orientation, pitch, shading analysis (using tools like Aurora or Helioscope), and real energy usage. Solar installers need an electrical contractor's license in most states, with some states requiring additional solar-specific certifications.

Can I do solar installation work myself instead of hiring a pro?

DIY solar is technically possible but inadvisable for most homeowners. Grid-tied solar requires electrical permits, interconnection agreements with your utility, structural engineering review, and compliance with NEC rapid-shutdown requirements. Incorrect installation can void panel warranties, cause roof leaks, create fire hazards from improper wiring, and may not qualify for the federal tax credit if not installed by a licensed contractor.

What warranty should I expect from a solar installation in Illinois?

Expect a 25-year panel manufacturer warranty covering at least 80% production at year 25. Inverter warranties should be 12–25 years (microinverters) or 10–15 years (string inverters).