COMPANY RECORD · CHICAGO, IL
Cool Z Heating Inc. — permit history in Chicago, IL
Cool Z Heating Inc. appears on 47 Chicago permit records from 2006 through 2025, all of them mechanical / hvac.
Permit categories
| Category | Permits | Share |
|---|---|---|
| Mechanical / HVAC | 47 | 100% |
Activity by year
| Year | Permits issued |
|---|---|
| 2006 | 1 |
| 2007 | 5 |
| 2008 | 6 |
| 2009 | 1 |
| 2010 | 4 |
| 2012 | 4 |
| 2013 | 1 |
| 2014 | 1 |
| 2015 | 1 |
| 2016 | 4 |
| 2019 | 3 |
| 2021 | 5 |
| 2022 | 1 |
| 2023 | 3 |
| 2024 | 5 |
| 2025 | 2 |
Busiest year on record: 2008, with 6 permits. One project can account for several filings, so read this as filing activity rather than workload.
Named on the same permit
| Name in source | Linked permits | Last seen |
|---|---|---|
| Kds Development Inc | 6 | 2024-04-03 |
| Spr Construction Company | 4 | 2024-04-03 |
| Rehabitat Construction, LLC | 3 | 2007-08-29 |
| Norpro Services, Ltd | 3 | 2022-02-09 |
| Rynational.Inc | 3 | 2022-02-09 |
| Windy City Re, LLC | 2 | 2016-09-20 |
| J&B Construction Pros Inc | 2 | 2021-03-26 |
| Gold Construction Group, Inc. | 2 | 2007-12-18 |
| Primera Construction And Remodeling, LLC. | 2 | 2015-03-13 |
| Conquest Construction, LLC. | 2 | 2008-08-14 |
| Royal Concrete, Inc. | 2 | 2008-12-04 |
| The Best Construction Co | 2 | 2007-12-18 |
46 companies are named alongside Cool Z Heating Inc. on the same Chicago permit. A shared permit is a documented co-appearance, not proof of a current contract. Names appear as the authority published them.
Where they worked
| Address in source | Most recent permit |
|---|---|
| 4252 N HAMLIN AVE | 2025-12-09 |
| 6232 S JUSTINE ST | 2025-11-25 |
| 7747 S CREGIER AVE | 2024-11-21 |
| 1709 N TROY ST | 2024-10-15 |
| 1617 N CLYBOURN AVE | 2024-10-02 |
| 3921 N ST LOUIS AVE | 2024-04-03 |
| 5914 S ADA ST | 2023-05-04 |
| 4810 W JACKSON BLVD | 2023-03-31 |
| 1346 N CLEAVER ST | 2022-02-09 |
| 846 N HERMITAGE AVE | 2021-08-25 |
| 2500 W GUNNISON ST | 2021-03-26 |
| 110 S ASHLAND AVE | 2021-03-10 |
| 6429 S MAY ST | 2019-09-05 |
| 2029 W IOWA ST | 2019-08-12 |
41 distinct addresses on record; the 14 most recent are shown. Declared value on record runs from $1 to $630,000, median $75,000. Addresses appear as the authority published them. A permit is a filing at an address, not a completed job there.
Permits on record
47 permits; open the full list
| Permit | Issued | Category | Address in source | Scope as filed | Declared value |
|---|---|---|---|---|---|
| 101076085 | 2025-12-09 | Mechanical / HVAC | 4252 N HAMLIN AVE | SELF-CERT 2019 CBRC: FULL GUT INTERIOR REMODEL OF EXISTING 2-STORY, TYPE VA FRAME, 25' HT, SINGLE-FAMILY RESIDENCE WITH BASEMENT INCLUDING NEW (243) SQ. FT. 2-STORY, TYPE VA FRAME, | $250,000 |
| 101075537 | 2025-11-25 | Mechanical / HVAC | 6232 S JUSTINE ST | BASEMENT FIRE REPAIR IN A TWO STORY HOUSE. THE BASEMENT HAS A BATHROOM THAT WILL BE RECONSTRUCTED ALONG WITH ALL BASEMENT WALLS. NEW ELECTRICAL IN BASEMENT. NO WORK IN FLOORS ABOVE | $10,000 |
| 101049388 | 2024-11-21 | Mechanical / HVAC | 7747 S CREGIER AVE | PROPOSED 2ND FLOOR ADDITION, FULL GUT REHAB OF AN EXISTING 2 STORY SFR, PER PLANS. ADMINISTRATIVE ADJUSTMENT #24-228 TO REDUCE THE SIDE SETBACK APPROVED 11.01.2024. | $150,000 |
| 101058726 | 2024-10-15 | Mechanical / HVAC | 1709 N TROY ST | SELF CERTIFICATION- INTERIOR ALTERATIONS TO EXISTING 3RD FLOOR APARTMENT IN TO EXISTING 3-STORY BRICK BUILDING WITH BASEMENT AND 4 EXISTING DWELLING UNITS (OCCUPANCY GROUP R-2, CON | $320,000 |
| 101057713 | 2024-10-02 | Mechanical / HVAC | 1617 N CLYBOURN AVE | 2019 CBC SELF CERT. INTERIOR ALTERATIONS INCLUDING MEP WORK FOR A FIRST FLOOR MEDICAL SERVICE OFFICE BUILDOUT (PODIATRIST, USE GROUP JJ). NO WORK TO THE BASEMENT OR THE UPPER FLOOR | $130,000 |
| 101047276 | 2024-04-03 | Mechanical / HVAC | 3921 N ST LOUIS AVE | 2019 SELF CERT CRBC: REVISION TO PERMIT # 101029365 FOR ADDITIONAL ELECTRICAL SCOPE DETERMINE TO BE NECESSARY IN THE FIELD .(R-5 OCCUPANCY GROUP,TYPE IIIA CONSTRUCTION). | $100,000 |
| 101034318 | 2024-01-04 | Mechanical / HVAC | 3921 N ST LOUIS AVE | INTERIOR RENOVATIONS TO CONVERT EXISTING 2 STORY/2 UNIT RESIDENCE TO 3 UNITE (PER ADU ORDINANCE), PER PLANS. | $50,000 |
| 101029365 | 2023-10-05 | Mechanical / HVAC | 3921 N ST LOUIS AVE | SELF-CERT- 2019 CBRC: LOWERING OF BASEMENT, REPAIRS TO REAR PORCH, INTERIOR RENOVATIONS IN AN EXITING 2 STORY/2 UNIT RESIDENCE, PER PLANS. | $100,000 |
| 100971826 | 2023-05-04 | Mechanical / HVAC | 5914 S ADA ST | INTERIOR & EXTERIOR ALTERATIONS TO EXISTING 2 STORY BRICK BLDG. W/BASEMENT 2 D.U. REPAIR FRONT & REAR WOOD PORCH S.A.E. ARCH, HVAC, PLUMBING, ELECTRICAL, REFRIGERATION PER PLANS | $48,700 |
| 101008997 | 2023-03-31 | Mechanical / HVAC | 4810 W JACKSON BLVD | FIRE DAMAGED EXISTING THREE FLAT, REMODEL OF INTERIOR. NO INCREASE IN SIZE, NEW LAUNDRY ROOM IN EXISTING BASEMENT. NEW REAR STAIR. | $70,000 |
| 100950456 | 2022-02-09 | Mechanical / HVAC | 1346 N CLEAVER ST | 2019 SPR. REVISION TO PERMIT # 100925208.REVISIONS INCLUDE:STRUCTURAL ADJUSTMENTS TO PROPOSED LAYOUTS TO ADAPT EXISTING CONDITIONS AS REVEALEDAFTER DEMOLITION. MECHANICAL DUCTWORK | $12,000 |
| 100925208 | 2021-09-13 | Mechanical / HVAC | 1346 N CLEAVER ST | 2019 SPR. DECONVERT EXISTING TOTAL 5DU FRONT BUILDING & 1ST FLOOR FRONT RETAIL (MIXED-USE) TO 5DU (R-2 USE CLASSIFICATION). (EXISTING COACH HOUSE N.I.C.) INTERIOR ALTERATION WITH M | $617,000 |
| 100926379 | 2021-09-13 | Mechanical / HVAC | 1346 N CLEAVER ST | 2019 SPR.DECONVERT EXISTING 2DU COACH HOUSE TO 1DU.(EXISTING FRONT BUILDING N.I.C.) INTERIOR ALTERATION WITH MEP FOR 1 DU 1 1 2 BRICK BUILDING COACH HOUSE WITH BASEMENT, TYPE IIIA | $166,425 |
| 100919518 | 2021-08-25 | Mechanical / HVAC | 846 N HERMITAGE AVE | REVISION TO EXISTING PERMIT 100719930. GUT REHAB OF 6 DWELLING UNITS BUILDING WITH LAYOUT CHANGE DUPLEX TO ATTIC AND REAR PORTION OF SOUTH WALL REBUILD. MECHANICAL, ELECTRICAL AND | $150,000 |
| 100908430 | 2021-03-26 | Mechanical / HVAC | 2500 W GUNNISON ST | SELF CERT 2019 CBRC: REMODEL EXISTING 2-FLAT - INSTALL NEW PVC WASTE AND VENT TO EXISTING KITCHENS AND BATHROOMS. REPLACE 2 EXISTING FORCED AIR GAS FURNACES AND REPLACE 2 EXISTING | $75,000 |
| 100903611 | 2021-03-10 | Mechanical / HVAC | 110 S ASHLAND AVE | SC - 2019 CBRC - RENOVATE AN EXISTING GROUND FLOOR RETAIL COMMERCIAL SPACE INTO A LAUNDROMAT PER PLANS. | $100,000 |
| 100847864 | 2019-10-25 | Mechanical / HVAC | 846 N HERMITAGE AVE | REVISION TO PERMIT # 100719930 CHANGE HVAC CONTRACTOR TO COOL Z HEATING INC. | $10 |
| 100826810 | 2019-09-05 | Mechanical / HVAC | 6429 S MAY ST | REMODEL THREE DWELLING UNITS IN A TWO STORY RESIDENTIAL BUILDING WITH BASEMENT. REPLACE DRYWALL/PLASTER ON EXISTING FRAMING WITH NEW DRYWALL LAYER. NEW INSULATION ON EXTERIOR WALLS | $71,000 |
| 100820840 | 2019-08-12 | Mechanical / HVAC | 2029 W IOWA ST | [SELF-CERT] DECONVERSION GUT-REHAB OF EXISTING 2.5-STORY MULTI-UNIT (5) RESIDENTIAL BUILDING TO A 2-FLAT WITH NEW DETACHED GARAGE TO REPLACE EXISTING IN SIMILAR LOCATION. NEW CONS | $600,000 |
| 100658550 | 2016-10-03 | Mechanical / HVAC | 6142 N NAPLES AVE | INTERIOR ALTERATIONS & REMODEL OF EXISTING, NEW 1 STORY W/CRAWL SPACE REAR BEDROOM ADDITION & NEW EXTERIOR FRONT STAIRS FOR RESIDENTIAL SINGLE FAMILY HOME AS PER PLANS **CERTIFIED | $125,000 |
| 100656314 | 2016-09-30 | Mechanical / HVAC | 1100 N LAKE SHORE DR | INTERIOR REMODELING OF A DUPLEX CONDOMINIUM IN AN EXISTING RESIDENTIAL HIGH RISE BUILDING. NO NEW MECHANICAL WORK. NO NEW PLUMBING LOCATIONS-ONLY REPLACEMENT OF EXISTING FIXTURES.( | $50,000 |
| 100670473 | 2016-09-20 | Mechanical / HVAC | 5833 W IRVING PARK RD | REVISION TO PERMIT #100621771 TO CHANGE THE VENTILATION CONTRACTOR OF RECORD TO COOL Z HEATING. | $1 |
| 100640197 | 2016-03-18 | Mechanical / HVAC | 1104 W 18TH ST | CHANGE VENT CONTRACTOR TO COOL Z HEATING FOR PERMIT 100589851 | $1 |
| 100583682 | 2015-03-13 | Mechanical / HVAC | 5555 N SHERIDAN RD | PREPARE EXISTING VACANT RETAIL SPACE LN FOR FUTURE TENANT LEASING.WORK TO INCLUDE: CLEAN EXPOSED CONCRETE FLOOR & CLAY TILE CEILING, INSTALL NEW AIR HANDLER FOR VENTILATION & AIR C | $16,800 |
| 100565501 | 2014-11-03 | Mechanical / HVAC | 3928 N PANAMA AVE | ERECT A 1-STORY FRAME MASTER BEDROOM SUITE ADDITION (300 SF) AT REAR TO THE EXISTING 2-STORY MASONRY SINGLE FAMILY RESIDENCE WITH BASEMENT AND DETACHED GARAGE. WORK TO INCLUDE NEW | $50,000 |
| 100514384 | 2013-10-31 | Mechanical / HVAC | 1523 N HARDING AVE | REPLACE EXIST'G REAR OPEN WOOD 2 STORY STAIR & FRONT STEEL LINTEL AS EXIST'G PER DRAWINGS & REPLACE STOLEN PLUMBING & HEATING UNITS | $10,000 |
| 100460388 | 2012-09-28 | Mechanical / HVAC | 2639 N HARLEM AVE | REVISION TO PERMIT # 100437111 ISSUED 7/30/2012 TO CHANGE THE HVAC CONTRACTOR OF RECORD TO COOL Z HEATING. | $1 |
| 100443443 | 2012-07-10 | Mechanical / HVAC | 1445 W AUGUSTA BLVD | ADDITION OF BATHROOM IN THE EXISTING BASEMENT IN 3 FLAT RESIDENTIAL HOUSE AT 1445 W. AUGUSTA AS PER PLANSBASEMENT FOR STORAGE USE ONLY | $4,000 |
| 100428556 | 2012-05-23 | Mechanical / HVAC | 11552 S BELL AVE | INTERIOR REMODELING AND REAR SECOND FLOOR FRAME ADDITION AND PARTIAL DORMER, NEW REAR DECK TO EXISTING SINGLE FAMILY RESIDENCE WITH BASEMENT AS PER PLANS | $65,000 |
| 100424370 | 2012-03-30 | Mechanical / HVAC | 2111 W SUPERIOR ST | ERECT A SECOND FLOOR ADDITION TO AN EXISTING SINGLE FAMILY RESIDENCE AS PER PLANS.(CONDITIONAL PERMIT CERTIFIED CORRECTIONS) | $150,000 |
| 100371797 | 2010-12-21 | Mechanical / HVAC | 9916 S MALTA ST | ERECTED A NEW 4'10"X 28'4.75" DORMER ON SOUTH SIDE OF BUILDING AND INTERIOR RENOVATION OF THE EXISTING SINGLE FAMILY HOUSE LOCATED AT 9916 S. MALTA AT RS-2 RESIDENTIAL DISTRICT. | $45,000 |
| 100339096 | 2010-04-15 | Mechanical / HVAC | 6031 N MONTICELLO AVE | REVISION TO PERMIT # 100267295 TO CHANGE HVAC CONTRACTOR | $1 |
| 100319206 | 2010-03-09 | Mechanical / HVAC | 3010 W BELDEN AVE | INTERIOR AND EXTERIOR ALTERATIONS TO CONVERT FROM 3 UNITS TO 2 UNITS AND REPLACING REAR ENCLOSED PORCH AND NEW REAR DECK AS PER PLANS | $65,000 |
| 100326892 | 2010-03-05 | Mechanical / HVAC | 1252 N GREENVIEW AVE | REMODEL EXISTING 2ND FLOOR BATHROOM. ALSO ADD TWO NEW BATHROOMS AT 2ND FLOOR IN EXISTING BEDROOMS. CONVERT 2-DWELLING UNIT BUILDING TO A BED & BREAKFAST. | $12,000 |
| 100254963 | 2009-10-15 | Mechanical / HVAC | 2052 W 23RD ST | NEW THIRD FLOOR ADDITION TO EXISTING TWO STORY WITH ATTIC, BRICK RESIDENTIAL BUILDING INCLUDING ELEC, PLBG, AND HVAC; THIRD FLOOR TO BE DUPLEXED WITH THE SECOND FLOOR; BASEMENT AL | $150,000 |
| 100260326 | 2008-12-04 | Mechanical / HVAC | 1120 N LAKE SHORE DR | INTERIOR APARTMENT REMODELING, UNIT 18CD, INCLUDING ELECTRICAL, PLUMBING, AND HVAC AS PER PLANS. CONDITIONAL PERMIT SUBJECT TO AUDIT AND FIELD INSPECTION. | $93,000 |
| 100243958 | 2008-11-07 | Mechanical / HVAC | 8432 S BAKER AVE | INTERIOR ALTERATION AND REPLACE FRONT STAIRS PER PLAN (NO REFRIGERATION UNDER THIS PERMIT) | $12,000 |
| 100228728 | 2008-08-14 | Mechanical / HVAC | 5814 S WOOD ST | NEW SMALL 2-STORY FRAME FARM BUILDING INCLUDING SMALL LOFT MEZZANINE, OUTDOOR DECK AND PATIO, PARKING LOT AND DRIVEWAYS, LANDSCAPING, FENCING AND OTHER SITE IMPROVEMENTS. | $250,000 |
| 100225547 | 2008-05-07 | Mechanical / HVAC | 4356 S LAKE PARK AVE | ALTERATION OF EXISTING 6 D.U. BUILDING. NEW PARTITIONS, DOORS, WINDOWS, PARKING. NEW MECHANICAL, ELECTRICAL AND PLUMBING. | $150,000 |
| 100229902 | 2008-04-08 | Mechanical / HVAC | 1518 W NORWOOD ST | ERECT TWO STORY REAR ADDITION TO AN EXISTING SINGLE FAMILY RESIDENCE WITH PLUMBING, ELECTRICAL, HEATING, NEW DECK AND INTERIOR ALTERATIONS AS PER PLANS | $75,000 |
| 100208441 | 2008-02-01 | Mechanical / HVAC | 4314 S FORRESTVILLE AVE | INTERIOR RENOVATION TO EXISTING III-B, 3DU, 4 STORY APARTMENT BUILDING AS PER PLANS | $75,000 |
| 100178488 | 2007-12-18 | Mechanical / HVAC | 3241 W PALMER ST | ERECT NEW 3 STORY, III-B 7DU APARTMENT BUILDING W/BASEMENT AS PER PLANS. | $450,000 |
| 100181074 | 2007-08-29 | Mechanical / HVAC | 4534 S ELLIS AVE | INTERIOR ALTERATION TO EXISTING BUILDING - CONVERT FROM 6 UNITS TO 8 UNITS - PORCH ADDITION PER PLANS | $500,000 |
| 100160747 | 2007-04-17 | Mechanical / HVAC | 4942 W IRVING PARK RD | CONVERSION FROM 1 COMMERCIAL SPACE ITO 2 COMMERIAL SPACES PER PLANS. (NO MECHANICAL WORK) | $15,000 |
| 100157281 | 2007-04-12 | Mechanical / HVAC | 6130 S UNIVERSITY AVE | ERECT A 3 STORY, 3B MASONRY, 4 UNIT APARTMENT BUILDING WITH BASEENT PER PLANS. | $630,000 |
| 100159276 | 2007-04-03 | Mechanical / HVAC | 3634 W BELMONT AVE | KITCHEN AND GARAGE ADDITION | $110,000 |
| 100063249 | 2006-04-21 | Mechanical / HVAC | 4534 S ELLIS AVE | EXTERIOR REPAIR (PORCH), INTERIOR ALTERATIONS , CONVERTING FROM 3 DU TO 5 DWELLING UNITS. (7 FURNACES & DUCKWORK) PER PLANS | $309,000 |
Fields appear as the issuing authority published them, including spelling and blanks. Scope text is the applicant's description of intended work, not an inspection finding.
Source and limits
Public Chicago permit records through 2025, counted by distinct permit number. This is a historical filing record: it cannot show current backlog, pricing, crew availability, licensing or insurance, and a quiet period may only mean work was filed elsewhere. Confirm anything commercial with the company and with the issuing authority before acting. How we build these records, and what we withhold →