Registered address: 6336 N OAKLEY AVE 1ST, Chicago, IL 60659
85115 · Source dated 2026-10-20 · Service area not confirmed. · Verify on IL portal →
No public phone or website on record.
Cook County, Illinois
Licensed Trade Records in Cook County, Illinois
Browse 2,907 verified licensed trade contractors registered across Cook County, Illinois (including Chicago, Evanston, Schaumburg, Arlington Heights). Every record is compiled from Illinois Department of Public Health & Department of Financial and Professional Regulation (IL IDPH / IDFPR) public credential files under Illinois Plumbing License Law (225 ILCS 320), Illinois Roofing Industry Licensing Act (225 ILCS 335), and Municipal Contractor Registration Ordinances.
Official State Authority: Illinois Department of Public Health & Department of Financial and Professional Regulation (IL IDPH / IDFPR) Official Registry · County Seat: Chicago
Municipalities in Cook County (1)
Select a city or town in Cook County to view local permit guidance and registered licensed trade records:
2907 licensed trade records · Cook County, IL
ChangePublic Directory Quality: Official IL IDPH / IDFPR license records across Cook County · Zero sponsored order · Never sold as a lead · How our data works →
Show registered-address map (25 records on this page)17 approximate areas
Shaded areas mark approximate postal or city locations, not premises or service areas. Circle sizes are illustrative, not postal boundaries. Some records share the same area. Private addresses are excluded.
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Registered address: 2940 S WENTWORTH AVE, Chicago, IL 60616
1472827 · Source dated 2026-10-20 · Service area not confirmed. · Verify on IL portal →
+1 more registration for this business
- 2110013 · 2940 S WENTWORTH AVE, Chicago, IL 60616
No public phone or website on record.
Registered address: 2923 N KOSTNER AVE, Chicago, IL 60641
1383899 · Source dated 2026-10-20 · Service area not confirmed. · Verify on IL portal →
+1 more registration for this business
- 51896 · 2453 N FRANCISCO AVE, Chicago, IL 60647
No public phone or website on record.
Registered address: 4057 S WESTERN AVE 1ST, Chicago, IL 60609
82657 · Source dated 2026-10-20 · Service area not confirmed. · Verify on IL portal →
No public phone or website on record.
Registered address: 3116 N CICERO AVE 1ST, Chicago, IL 60641
81075 · Source dated 2026-10-20 · Service area not confirmed. · Verify on IL portal →
No public phone or website on record.
Registered address: 5247 W NORTH AVE 1, Chicago, IL 60639
53775 · Source dated 2026-10-20 · Service area not confirmed. · Verify on IL portal →
No public phone or website on record.
Registered address: 220 E 79TH ST, Chicago, IL 60619
1619478 · Source dated 2026-10-20 · Service area not confirmed. · Verify on IL portal →
No public phone or website on record.
Registered address: 830 W 89TH ST, Chicago, IL 60620
1488080 · Source dated 2026-10-20 · Service area not confirmed. · Verify on IL portal →
No public phone or website on record.
Registered address: 424 E 95TH ST MAIN, Chicago, IL 60619
35109 · Source dated 2026-10-20 · Service area not confirmed. · Verify on IL portal →
No public phone or website on record.
Registered address: 6836 S SOUTH CHICAGO AVE, Chicago, IL 60637
5801 · Source dated 2026-10-20 · Service area not confirmed. · Verify on IL portal →
No public phone or website on record.
Registered address: 9026 S JUSTINE ST 1ST, Chicago, IL 60620
60214 · Source dated 2026-10-20 · Service area not confirmed. · Verify on IL portal →
No public phone or website on record.
Registered address: 11732 S PRAIRIE AVE, Chicago, IL 60628
1547292 · Source dated 2026-10-20 · Service area not confirmed. · Verify on IL portal →
No public phone or website on record.
Registered address: 2242 W FOSTER AVE, Chicago, IL 60625
1681139 · Source dated 2026-10-20 · Service area not confirmed. · Verify on IL portal →
No public phone or website on record.
Registered address: 3048 N CLYBOURN AVE, Chicago, IL 60618
1272358 · Source dated 2026-10-20 · Service area not confirmed. · Verify on IL portal →
No public phone or website on record.
Registered address: 3637 N LEAVITT ST MAIN, Chicago, IL 60618
23655 · Source dated 2026-10-20 · Service area not confirmed. · Verify on IL portal →
No public phone or website on record.
Registered address: 1434 W THORNDALE AVE 3, Chicago, IL 60660
1819163 · Source dated 2026-10-20 · Service area not confirmed. · Verify on IL portal →
No public phone or website on record.
Registered address: 2515 W AUGUSTA BLVD, Chicago, IL 60622
1353871 · Source dated 2026-10-20 · Service area not confirmed. · Verify on IL portal →
No public phone or website on record.
Registered address: 2912 S PARNELL AVE, Chicago, IL 60616
1821395 · Source dated 2026-10-20 · Service area not confirmed. · Verify on IL portal →
No public phone or website on record.
Registered address: 1657 W FARWELL AVE, Chicago, IL 60626
1542471 · Source dated 2026-10-20 · Service area not confirmed. · Verify on IL portal →
No public phone or website on record.
Registered address: 8620 S EUCLID AVE, Chicago, IL 60617
1820118 · Source dated 2026-10-20 · Service area not confirmed. · Verify on IL portal →
No public phone or website on record.
Registered address: 5730 S ARTESIAN AVE BSMT, Chicago, IL 60629
1888194 · Source dated 2026-10-20 · Service area not confirmed. · Verify on IL portal →
No public phone or website on record.
Registered address: 3817 S HONORE ST, Chicago, IL 60609
1222348 · Source dated 2026-10-20 · Service area not confirmed. · Verify on IL portal →
No public phone or website on record.
Registered address: 3356 S LOWE AVE 2ND, Chicago, IL 60616
1489512 · Source dated 2026-10-20 · Service area not confirmed. · Verify on IL portal →
No public phone or website on record.
Frequently Asked Questions — Cook County, IL
How are licensed trade credentials verified in Cook County, Illinois?
Records across Cook County are sourced directly from the Illinois Department of Public Health & Department of Financial and Professional Regulation (IL IDPH / IDFPR). Illinois Plumbing License Law (225 ILCS 320), Illinois Roofing Industry Licensing Act (225 ILCS 335), and Municipal Contractor Registration Ordinances
Which municipalities are covered in the Cook County directory?
Cook County coverage includes Chicago, Evanston, Schaumburg, Arlington Heights, Palatine, Skokie, Des Plaines, Orland Park, Tinley Park, Oak Lawn, with County Seat in Chicago.
Are licensed contractors in Cook County, IL required to carry insurance and surety bonds?
Yes. Under Illinois licensing authority regulations, licensed trade contractors typically must maintain active Commercial General Liability insurance, appropriate surety bonds, and state Workers' Compensation coverage before pulling municipal permits.
Other Counties in Illinois
Before the first call
- Describe the job and ask whether it is within their scope and service area.
- Check the credential with its issuing authority and ask what applies where the work will happen.
- Ask about insurance, availability, who will do the work, and a written scope.
- Ask about callout fees, labor or fixed rates, materials, cancellation and any estimate charge.
Verification Overview & Key Takeaways: How to Check Official Credentials
HomeCrafto displays source records with different scopes, including licenses, registrations, municipal permits and community records. A source entry is not proof of qualification for your job. Before signing a work order or paying a deposit, homeowners should confirm that the contractor’s credential number is active, verify that the license classification covers the specific trade scope required for the job, and request a current Certificate of Insurance (COI) directly from the issuing insurance carrier. Independent verification protects your property and ensures compliance with local building codes.
How do you verify a contractor license number and insurance on official portals (FAQ)?
You can verify active license standing and consumer protection rules directly through official government portals, including Washington L&I Contractor Verify, the California Contractors State License Board (CSLB), the Connecticut eLicense Portal, USA.gov State Consumer Protection Offices, and FTC Home Improvement Consumer Guidance. Always confirm municipal permit requirements with your local building department before work begins.