Registered address: 5407 TRILLIUM BLVD, SUITE B120, Hoffman Estates, IL 60192
CR26005954 · Source dated 2026-10-19 · Service area not confirmed. · Verify on Issuing Jurisdiction portal →
Cook County, Illinois
Heating & cooling in Cook County, Illinois
Browse 320 verified HVAC 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 heating & cooling records:
320 heating & cooling 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)15 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: 2010 N HOYNE AVE 1, Chicago, IL 60647
1798284 · Source dated 2026-10-20 · Service area not confirmed. · Verify on IL portal →
No public phone or website on record.
Registered address: 9023 S OGLESBY AVE, Chicago, IL 60617
1171785 · Source dated 2026-10-20 · Service area not confirmed. · Verify on IL portal →
No public phone or website on record.
Registered address: 6556 S KEDZIE AVE, Chicago, IL 60629
1306164 · Source dated 2026-10-20 · Service area not confirmed. · Verify on IL portal →
No public phone or website on record.
Registered address: 5928 W ADDISON ST, Chicago, IL 60634
1595865 · Source dated 2026-10-20 · Service area not confirmed. · Verify on IL portal →
No public phone or website on record.
Registered address: 3122 W JEROME ST, Chicago, IL 60645
1476907 · Source dated 2026-10-20 · Service area not confirmed. · Verify on IL portal →
+1 more registration for this business
- 1740944 · 5304 N SPAULDING AVE, Chicago, IL 60625
No public phone or website on record.
Registered address: 4119 N KENNETH AVE 1ST, Chicago, IL 60641
85486 · Source dated 2026-10-20 · Service area not confirmed. · Verify on IL portal →
No public phone or website on record.
Registered address: 2929 N NEENAH AVE 1ST, Chicago, IL 60634
83238 · Source dated 2026-10-20 · Service area not confirmed. · Verify on IL portal →
No public phone or website on record.
Registered address: 5772 W HIGGINS AVE 1ST, Chicago, IL 60630
2048413 · Source dated 2026-10-20 · Service area not confirmed. · Verify on IL portal →
No public phone or website on record.
Registered address: 3461 S ARCHER AVE 1ST, Chicago, IL 60608
1874156 · Source dated 2026-10-20 · Service area not confirmed. · Verify on IL portal →
No public phone or website on record.
Registered address: 3461 S ARCHER AVE 1, Chicago, IL 60608
19027 · Source dated 2026-10-20 · Service area not confirmed. · Verify on IL portal →
No public phone or website on record.
Registered address: 3512 W 76TH ST 1, Chicago, IL 60652
1697209 · Source dated 2026-10-20 · Service area not confirmed. · Verify on IL portal →
No public phone or website on record.
Registered address: 3143 S MORGAN ST OFFIC, Chicago, IL 60608
36946 · Source dated 2026-10-20 · Service area not confirmed. · Verify on IL portal →
No public phone or website on record.
Registered address: 4558 S ARCHER AVE 1ST, Chicago, IL 60632
43893 · Source dated 2026-10-20 · Service area not confirmed. · Verify on IL portal →
No public phone or website on record.
Registered address: 8128 S WESTERN AVE, Chicago, IL 60620
1516300 · Source dated 2026-10-20 · Service area not confirmed. · Verify on IL portal →
No public phone or website on record.
Registered address: 7457 W FOREST PRESERVE AVE, Chicago, IL 60634
1478396 · Source dated 2026-10-20 · Service area not confirmed. · Verify on IL portal →
No public phone or website on record.
Registered address: 9132 S ASHLAND AVE, Chicago, IL 60620
1300083 · Source dated 2026-10-20 · Service area not confirmed. · Verify on IL portal →
No public phone or website on record.
Registered address: 4003 W IOWA ST 1ST, Chicago, IL 60651
34955 · Source dated 2026-10-20 · Service area not confirmed. · Verify on IL portal →
No public phone or website on record.
Registered address: 4705 W 79TH ST, Chicago, IL 60652
1595452 · Source dated 2026-10-20 · Service area not confirmed. · Verify on IL portal →
+1 more registration for this business
- 1933493 · 6228 S OAKLEY AVE 1, Chicago, IL 60636
No public phone or website on record.
Registered address: 8518 S ASHLAND AVE, Chicago, IL 60620
1043048 · Source dated 2026-10-20 · Service area not confirmed. · Verify on IL portal →
No public phone or website on record.
Registered address: 4558 S ARCHER AVE 1ST, Chicago, IL 60632
43894 · Source dated 2026-10-20 · Service area not confirmed. · Verify on IL portal →
No public phone or website on record.
Registered address: 2959 N PULASKI RD 1ST, Chicago, IL 60641
1885108 · Source dated 2026-10-20 · Service area not confirmed. · Verify on IL portal →
No public phone or website on record.
Registered address: 3901 N KILBOURN AVE, Chicago, IL 60641
1169528 · 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 heating & cooling 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 heating & cooling 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.