Cook County, Illinois

Licensed Trade Records in Cook County, Illinois

Illustration for home services in Cook County — Illustration, not a business photoPrepare brief →

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:

Chicago 2900

2907 licensed trade records · Cook County, IL

Change

Public Directory Quality: Official IL IDPH / IDFPR license records across Cook County · Zero sponsored order · Never sold as a lead · How our data works →

All trades directory — Cook County

2907 matching records across 1 open municipalities · 25 on this page · Contactable records first, then alphabetical.

Show registered-address map (25 records on this page)16 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.

Open this map to load OpenStreetMap tiles. Your browser will connect to OpenStreetMap and the map library provider.

Open area in OpenStreetMap ↗ · Report a map issue

Air Quality Control, Inc.

Official license file From the official license file General contracting · City of Chicago Department of Business Affairs and Consumer Protection

Registered address: 6102 W ADDISON ST, Chicago, IL 60634

1336005 · Source dated 2026-10-20 · Service area not confirmed. · Verify on IL portal →

No public phone or website on record.

Prepare brief

Air Systems Technology, Inc.

Official license file From the official license file General contracting · City of Chicago Department of Business Affairs and Consumer Protection

Registered address: 3416 W HENDERSON ST 3, Chicago, IL 60618

1696794 · Source dated 2026-10-20 · Service area not confirmed. · Verify on IL portal →

No public phone or website on record.

Prepare brief

Air-Heat-Tech

Official license file From the official license file Heating & cooling · City of Chicago Department of Business Affairs and Consumer Protection

Registered address: 3918 N OAK PARK AVE, Chicago, IL 60634

1382503 · Source dated 2026-10-20 · Service area not confirmed. · Verify on IL portal →

No public phone or website on record.

Prepare brief

Air-Tech Heating

Official license file From the official license file Heating & cooling · City of Chicago Department of Business Affairs and Consumer Protection

Registered address: 7019 W IRVING PARK RD 1, Chicago, IL 60634

67912 · Source dated 2026-10-20 · Service area not confirmed. · Verify on IL portal →

No public phone or website on record.

Prepare brief

Airon Inc

Official license file From the official license file General contracting · City of Chicago Department of Business Affairs and Consumer Protection

Registered address: 3715 W BELMONT AVE 1ST, Chicago, IL 60618

45034 · Source dated 2026-10-20 · Service area not confirmed. · Verify on IL portal →

No public phone or website on record.

Prepare brief

Airport Heating & A C

Official license file From the official license file Heating & cooling · City of Chicago Department of Business Affairs and Consumer Protection

Registered address: 4154 W 63RD ST 1ST, Chicago, IL 60629

20292 · Source dated 2026-10-20 · Service area not confirmed. · Verify on IL portal →

No public phone or website on record.

Prepare brief

Airzone Heating & Cooling

Official license file From the official license file Heating & cooling · City of Chicago Department of Business Affairs and Consumer Protection

Registered address: 3755 W 76TH PL, Chicago, IL 60652

1197951 · Source dated 2026-10-20 · Service area not confirmed. · Verify on IL portal →

No public phone or website on record.

Prepare brief

Airzone Heating And Cooling

Official license file From the official license file Heating & cooling · City of Chicago Department of Business Affairs and Consumer Protection

Registered address: 2027 W 82ND ST, Chicago, IL 60620

1818073 · Source dated 2026-10-20 · Service area not confirmed. · Verify on IL portal →

No public phone or website on record.

Prepare brief

Ajax Heating/Air Cond

Official license file From the official license file Heating & cooling · City of Chicago Department of Business Affairs and Consumer Protection

Registered address: 4558 S ARCHER AVE 1 FL, Chicago, IL 60632

43895 · Source dated 2026-10-20 · Service area not confirmed. · Verify on IL portal →

No public phone or website on record.

Prepare brief

Ak Construction & Masonry, Inc.

Official license file From the official license file Concrete · City of Chicago Department of Business Affairs and Consumer Protection · Specialty scope: Concrete, Stone & Masonry

Registered address: 4340 W ADDISON ST, Chicago, IL 60641

1844704 · Source dated 2026-10-20 · Service area not confirmed. · Verify on IL portal →

No public phone or website on record.

Prepare brief

Ak General Construction

Official license file From the official license file General contracting · City of Chicago Department of Business Affairs and Consumer Protection

Registered address: 1741 W DIVISION ST, Chicago, IL 60622

76838 · Source dated 2026-10-20 · Service area not confirmed. · Verify on IL portal →

No public phone or website on record.

Prepare brief

Al-Mex Construction Company

Official license file From the official license file General contracting · City of Chicago Department of Business Affairs and Consumer Protection

Registered address: 1851 S CLINTON ST, Chicago, IL 60616

1245593 · Source dated 2026-10-20 · Service area not confirmed. · Verify on IL portal →

No public phone or website on record.

Prepare brief

Alande Drywall Corp.

Official license file From the official license file General contracting · City of Chicago Department of Business Affairs and Consumer Protection

Registered address: 1720 S MICHIGAN AVE 21ST 2117, Chicago, IL 60616

1959236 · Source dated 2026-10-20 · Service area not confirmed. · Verify on IL portal →

No public phone or website on record.

Prepare brief

Alanis Development Corp.

Official license file From the official license file General contracting · City of Chicago Department of Business Affairs and Consumer Protection

Registered address: 4623 W DEMING PL, Chicago, IL 60639

1446621 · Source dated 2026-10-20 · Service area not confirmed. · Verify on IL portal →

No public phone or website on record.

Prepare brief

Albert Home Remodeling

Official license file From the official license file General contracting · City of Chicago Department of Business Affairs and Consumer Protection

Registered address: 5247 S MICHIGAN AVE, Chicago, IL 60615

81674 · Source dated 2026-10-20 · Service area not confirmed. · Verify on IL portal →

No public phone or website on record.

Prepare brief

Alco Construction CO

Official license file From the official license file General contracting · City of Chicago Department of Business Affairs and Consumer Protection

Registered address: 3608 N MILWAUKEE AVE 1, Chicago, IL 60641

8548 · Source dated 2026-10-20 · Service area not confirmed. · Verify on IL portal →

No public phone or website on record.

Prepare brief

Alert Plumbing & Heating Co.

Official license file From the official license file Plumbing · City of Chicago Department of Business Affairs and Consumer Protection · Specialty scope: Plumbing & Heating · Additional recorded trades: Heating & cooling

Registered address: 2544 W FULLERTON AVE, Chicago, IL 60647

23161 · Source dated 2026-10-20 · Service area not confirmed. · Verify on IL portal →

No public phone or website on record.

Prepare brief

Ales Kosina Construction

Official license file From the official license file General contracting · City of Chicago Department of Business Affairs and Consumer Protection

Registered address: 2442 N MENARD AVE, Chicago, IL 60639

1301896 · Source dated 2026-10-20 · Service area not confirmed. · Verify on IL portal →

No public phone or website on record.

Prepare brief

Alex Construction

Official license file From the official license file General contracting · City of Chicago Department of Business Affairs and Consumer Protection

Registered address: 10030 S AVENUE L 1ST FLOOR 1, Chicago, IL 60617

1800066 · Source dated 2026-10-20 · Service area not confirmed. · Verify on IL portal →

No public phone or website on record.

Prepare brief

Alex Construction & Improvement, Inc.

Official license file From the official license file General contracting · City of Chicago Department of Business Affairs and Consumer Protection

Registered address: 1630 W MONTROSE AVE, Chicago, IL 60613

1335880 · Source dated 2026-10-20 · Service area not confirmed. · Verify on IL portal →

+1 more registration for this business

1841858 · 2101 W IRVING PARK RD 1, Chicago, IL 60618

No public phone or website on record.

Prepare brief

Alex Remodeling

Official license file From the official license file General contracting · City of Chicago Department of Business Affairs and Consumer Protection

Registered address: 2820 N TRIPP AVE, Chicago, IL 60641

1818408 · Source dated 2026-10-20 · Service area not confirmed. · Verify on IL portal →

No public phone or website on record.

Prepare brief

Alex's Construction

Official license file From the official license file General contracting · City of Chicago Department of Business Affairs and Consumer Protection

Registered address: 5749 S WHIPPLE ST, Chicago, IL 60629

1491776 · Source dated 2026-10-20 · Service area not confirmed. · Verify on IL portal →

No public phone or website on record.

Prepare brief

Alexander Jr. Building Services

Official license file From the official license file General contracting · City of Chicago Department of Business Affairs and Consumer Protection

Registered address: 643 N KEDZIE AVE 1ST, Chicago, IL 60612

1909287 · Source dated 2026-10-20 · Service area not confirmed. · Verify on IL portal →

No public phone or website on record.

Prepare brief

Alexander Jr. Building Services, Inc.

Official license file From the official license file General contracting · City of Chicago Department of Business Affairs and Consumer Protection

Registered address: 4554 S LAVERGNE AVE, Chicago, IL 60638

1478381 · Source dated 2026-10-20 · Service area not confirmed. · Verify on IL portal →

No public phone or website on record.

Prepare brief

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

DuPage County

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.

Prepare a project brief

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.