COMPANY RECORD · CHICAGO, IL
Ymi Mechanical, Inc. — permit history in Chicago, IL
Ymi Mechanical, Inc. appears on 64 Chicago permit records from 2010 through 2025, all of them mechanical / hvac.
Permit categories
| Category | Permits | Share |
|---|---|---|
| Mechanical / HVAC | 64 | 100% |
Activity by year
| Year | Permits issued |
|---|---|
| 2010 | 1 |
| 2011 | 1 |
| 2012 | 6 |
| 2013 | 7 |
| 2014 | 11 |
| 2015 | 10 |
| 2016 | 4 |
| 2017 | 7 |
| 2018 | 2 |
| 2019 | 3 |
| 2020 | 6 |
| 2021 | 2 |
| 2023 | 1 |
| 2024 | 1 |
| 2025 | 2 |
Busiest year on record: 2014, with 11 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 |
|---|---|---|
| Walsh Construction Company | 10 | 2018-07-23 |
| Bear Construction Company | 8 | 2020-11-05 |
| Pepper Construction Company | 7 | 2025-10-15 |
| Griggs Mitchell & Alma Of Il, LLC | 5 | 2021-06-03 |
| Robert G. Sansone, Inc. | 4 | 2016-11-22 |
| Gilbane Building Company, Inc. | 4 | 2017-06-19 |
| Walsh Construction Company II, LLC | 3 | 2020-04-24 |
| Johanson Construction Company | 2 | 2018-03-13 |
| Degraf Concrete Const., Inc. | 2 | 2020-02-26 |
| W.B.F.Construction Inc | 2 | 2020-09-15 |
| Berglund Construction Company | 2 | 2016-11-04 |
| Milburn LLC | 1 | 2019-05-21 |
34 companies are named alongside Ymi Mechanical, 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 |
|---|---|
| 5140 N CALIFORNIA AVE | 2025-10-15 |
| 720 S MICHIGAN AVE | 2023-10-06 |
| 1611 W HARRISON ST | 2021-08-09 |
| 1415 E 65TH ST | 2021-06-03 |
| 5145 N CALIFORNIA AVE | 2020-11-05 |
| 2908 W ROOSEVELT RD | 2020-09-15 |
| 2525 S MICHIGAN AVE | 2020-04-24 |
| 5501 S HALSTED ST | 2020-02-18 |
| 175 W JACKSON BLVD | 2019-05-21 |
| 5215 N CALIFORNIA AVE | 2018-03-13 |
| 950 E 59TH ST | 2017-09-01 |
| 5811 S ELLIS AVE | 2017-08-29 |
| 5700 S MARYLAND AVE | 2017-06-19 |
| 1355 N SANDBURG TER | 2017-03-17 |
31 distinct addresses on record; the 14 most recent are shown. Declared value on record runs from $0 to $30,000,000, median $637,268. Addresses appear as the authority published them. A permit is a filing at an address, not a completed job there.
Permits on record
64 permits; open the 50 most recent
| Permit | Issued | Category | Address in source | Scope as filed | Declared value |
|---|---|---|---|---|---|
| 101073842 | 2025-10-15 | Mechanical / HVAC | 5140 N CALIFORNIA AVE | SELF CERT 2019 CBC: INTERIOR ALTERATIONS TO EXISTING 5TH FLOOR BREAST SURGERY SUITE OFFICES, EXAM ROOMS, RECEPTION, WAITING AREAS AND TOILET ROOM TO INCLUDE NEW PARTITIONS AND MEP | $621,729 |
| 101067651 | 2025-05-20 | Mechanical / HVAC | 5140 N CALIFORNIA AVE | SELF-CERT 2019 CBRC: INTERIOR ALTERATIONS TO EXISTING MEDICAL ONCOLOGY AND RETAIL PHARMACY SPACES ON THE 1ST FLOOR OF THE GALTER MEDICAL PAVILION BUILDING ON THE SWEDISH HOSPITAL | $3,329,575 |
| 101059359 | 2024-10-15 | Mechanical / HVAC | 5140 N CALIFORNIA AVE | SELF CERT 2019 CBC: INTERIOR ALTERATIONS TO 6TH FLOOR EXISTING CANCER TREATMENT CENTER TO INCORPORATE EXPANDED CANCER TREATMENT CLINIC, INFUSION & LAB (OCCUPANCY B, TYPE IA CONSTRU | $7,785,502 |
| 101026844 | 2023-10-06 | Mechanical / HVAC | 720 S MICHIGAN AVE | SELF-CERTIFICATION. INTERIOR RENOVATION OF AN EXISTING HOTEL POOL ROOM, INCLUDING REPLACEMENT OF THE FOLLOWING: POOL EQUIPMENT; FLOOR, WALL, AND CEILING FINISHES; LIGHT FIXTURES; P | $2,916,301 |
| 100928743 | 2021-08-09 | Mechanical / HVAC | 1611 W HARRISON ST | SELF-CERT 2019 CBRC: INTERIOR ALTERATIONS TO EXISTING 1ST FLOOR OFFICE SPACE IN AN EXISTING 5 STORY BUILDING. (OCCUPANCY TYPE B / CONSTRUCTION TYPE 1A) | $278,208 |
| 100915011 | 2021-06-03 | Mechanical / HVAC | 1415 E 65TH ST | SPR 2019 CBRC: REVISION TO PERMIT #100890813 TO REVISE MOPD UNIT LOCATIONS AS SPECIFIED IN WORK DESCRIPTION ON COVER PAGE INCLUDING 1ST FLOOR INTERIOR RENOVATIONS, NEW MECHANICA | $150,000 |
| 100890813 | 2020-11-13 | Mechanical / HVAC | 1415 E 65TH ST | SPR 2019 CBRC: RENOVATION OF EXISTING R-2 OCCUPANCY INCLUDING 59 EXISTING SENIOR AFFORDABLE HOUSING UNITS W/ NO CHANGE TO 5 STORIES. INCLUDES KITCHEN AND BATH REMODELING AND LIMITE | $3,000,000 |
| 100897040 | 2020-11-05 | Mechanical / HVAC | 5145 N CALIFORNIA AVE | SELF-CERT CBRC 2019: INTERIOR RENOVATIONS TO 1ST & 2ND FLOOR OF GALTER PAVILION, 3RD & 4TH FLOOR OF HOSPITAL; ROOF TO INCLUDE NEW RTU. NO CHANGE OF USE. STRUCTURAL PEER REVIEW INCL | $1,203,280 |
| 100884893 | 2020-09-15 | Mechanical / HVAC | 2908 W ROOSEVELT RD | SELF CERT- REVISION TO PERMIT #100837540 TO REVISE 1ST FLOOR TRASH COMPACTOR ROOM INCLUDING ADDITION OF HOSE BIB AND SECTIONAL OVERHEAD DOOR ADDED, DOUBLE SWING DOOR REPLACED BY SI | $100,000 |
| 100863023 | 2020-04-24 | Mechanical / HVAC | 2525 S MICHIGAN AVE | SELF CERT INTERIOR RENOVATION OF FOUR EXISTING PATIENT ROOMS ON THE 11TH FLOOR IN EXISTING HOSPITAL PER PLANS. | $175,000 |
| 100837540 | 2020-02-26 | Mechanical / HVAC | 2908 W ROOSEVELT RD | NEW 5 STORY TYPE 1C (90) UNIT RESIDENTIAL METAL STUD FRAMED BUILDING WITH 1ST FLOOR SUPPORT SPACES. NEW 26 SURFACE PARKING STALLS,TRASH ENCLOSURE/BIKE STORAGE STRUCTURE NEW LANDSCA | $10,500,000 |
| 100861982 | 2020-02-18 | Mechanical / HVAC | 5501 S HALSTED ST | REMODELING OF THREE EXISTING ROOMS FOR DENTAL TREATMENT ROOMS AND DENTAL MECHANICAL/STERILIZATIONROOM, INSTALLATION OF PANORAMIC X-RAY. | $100,000 |
| 100853138 | 2019-12-16 | Mechanical / HVAC | 5145 N CALIFORNIA AVE | SELF-CERT: *STRUCTURAL PEER REVIEW* RENOVATIONS TO EXISTING 1ST AND 2ND FLOOR OF GALTER MEDICAL PAVILION (SWEDISH COVENANT HOSPITAL). THE SCOPE INCLUDES REPLACING THE EXISTING GE E | $1,200,000 |
| 100813455 | 2019-05-21 | Mechanical / HVAC | 175 W JACKSON BLVD | SELF CERT: INTERIOR DEMOLITION TO FLOORS 11, 12, AND 18 AS PER PLANS. NO STRUCTURAL. NO CHANGE IN USE. | $625,000 |
| 100789410 | 2019-02-19 | Mechanical / HVAC | 175 W JACKSON BLVD | SELF CERT: INTERIOR ALTERATIONS TO 1ST FLOOR LOBBY AND 22ND FLOOR AT EXISTING OFFICE BUILDING TO INCLUDE LIGHTING AND INTERIOR STOREFRONT MODIFICATIONS. STRUCTURAL PEER REVIEW INCL | $10,487,000 |
| 100762609 | 2018-07-23 | Mechanical / HVAC | 2525 S MICHIGAN AVE | INTERIOR ALTERATIONS TO AN EXISTING HOSPITAL ON THE 10TH FLOOR, FOR A NEW DIALYSIS CENTER AS PER PLANS, (NO CHANGE IN USE) | $350,000 |
| 100744646 | 2018-03-13 | Mechanical / HVAC | 5215 N CALIFORNIA AVE | BUSINESS USE, INTERIOR 2,423 S. F. MODIFICATION TO SUITE F804 LOCATED ON THE 8TH FLOOR OF AN EXISTING 8-STORY HIGH-RISE (2010) BUSINESS USE BUILDING, AS PER PLANS. | $460,000 |
| 100703057 | 2017-09-13 | Mechanical / HVAC | 2525 S MICHIGAN AVE | INTERIOR ALTERATIONS IN EXISTING HOSPITAL AT THE BASEMENT LEVEL FOR ELECTRICAL SYSTEM UPGRADES TO INCLUDE NEW DIESEL GENERATORS AND SITE UPGRADES AT THE EXTERIOR AS PER PLANS. | $6,940,391 |
| 100723995 | 2017-09-01 | Mechanical / HVAC | 950 E 59TH ST | SELF-CERT: 2,500 SF INTERIOR OFFICE RENOVATION ON THE 2ND FLOOR WITH NEW MECHANICAL SYSTEM- SELF CERTIFICATION, NO SITEWORK, NO STRUCTURAL WORK. | $600,000 |
| 100722891 | 2017-08-29 | Mechanical / HVAC | 5811 S ELLIS AVE | UNIVERSITY OF CHICAGO - SELF-CERTIFICATION, HVAC ALTERATIONS TO EXISTING COMMERCIAL SPACE, IN THE ATTIC SPACE AND THE 5TH FLOOR, NON-LOADBEARING. (SEE APPLICATION 100713398 FOR PER | $10,000 |
| 100710379 | 2017-06-19 | Mechanical / HVAC | 5700 S MARYLAND AVE | SELF-CERT: UNIVERSITY OF CHICAGO: INTERIOR RENOVATION OF SECOND FLOOR SPACE AS PER PLANS. | $515,000 |
| 100695946 | 2017-03-17 | Mechanical / HVAC | 1355 N SANDBURG TER | REPLACE 3 CONDENSING UNITS WITH TWO 7.5 TON, ONE 4.5 TON, AIR COOLED, REMOTE, R410A, CONDENSING UNITS. TWO MAMMOTH 7.5 TON UNITS ARE SERVING LAUNDRY AREAS, AND ONE SAMSUNG 4.5 TON | $0 |
| 100695456 | 2017-03-16 | Mechanical / HVAC | 5758 S MARYLAND AVE | **CERTIFED PLAN CORRECTIONS** SCOPE INCLUDES ENCLOSED CONNECTOR BETWEEN TWO HOSPITAL (B OCC.) BUILDINGS (CCD) AND (DCAM), 30" LONG BY 9' WIDE, USED TO FACILITATE PATIENT MOVEMENT O | $600,000 |
| 100674122 | 2017-02-08 | Mechanical / HVAC | 322 E ILLINOIS ST | INTERIOR ALTERATIONS TO EXISTING AUDITORIUM & MEZZANINE BOOTH AREA OF MOVIE THEATER TO INCLUDE STRUCTURAL AND MEP WORK PER PLANS. EXISTING/PROPOSED USE: C2 SMALL ASSEMBLY **CERTIF | $350,000 |
| 100683418 | 2016-12-16 | Mechanical / HVAC | 5841 S MARYLAND AVE | SELF-CERT: U OF C INTERIOR RENOVATION OF APPROX. 1,940 SF OF BUSINESS OCCUPANCY OFFICE SPACE ON THE SECOND FLOOR OF AN EXISTING BUILDING AND IN-KIND REPLACEMENT OF MECHANICAL EQUIP | $500,000 |
| 100652099 | 2016-11-22 | Mechanical / HVAC | 3317 N LINCOLN AVE | INTERIOR REMODEL OF LOWER LEVEL EXISTING PERSONAL SERVICE (DANCE STUDIO) SPACE CONSISTING OF A NEW CLASSROOM, NEW LOUNGE, NEW ELEVATOR, AND CORRIDOR AS PER ARCHITECT'S PLANS. | $12,000 |
| 100666446 | 2016-11-04 | Mechanical / HVAC | 2739 W FOSTER AVE | SELF-CERT PROJECT: INTERIOR ALTERATIONS TO EXISTING EMERGENCY ROOM BASEMENT THROUGH LEVEL 3 IN AN EXISTING HOSPITAL AS PER PLANS. | $12,300,000 |
| 100631271 | 2016-01-15 | Mechanical / HVAC | 5700 S MARYLAND AVE | UNIVERSITY OF CHICAGO: 12,491(SF) INTERIOR ALTERATION FOR NEW HOSPITAL KITCHEN ON THE FIRST FLOOR IN EXISTING HOSPITAL BUILDING. 5700 S MARYLAND AVENUE. | $5,400,000 |
| 100629207 | 2015-12-29 | Mechanical / HVAC | 150 N MICHIGAN AVE | REVISION TO PERMIT #100614098 TO CHANGE THE HVAC CONTRACTOR OF RECORD TO THE YMI GROUP. | $1 |
| 100617951 | 2015-12-11 | Mechanical / HVAC | 2525 S MICHIGAN AVE | REVISION TO PERMIT# 100522988 FOR MODIFICATIONS TO THE STAIRWELL AND EXIT PASSAGEWAY (BASEMENT, BASEMENT MEZZANINE AND 1ST FLOOR) IN AN EXISTING HOSPITAL AS PER PLANS. | $989,199 |
| 100611103 | 2015-11-05 | Mechanical / HVAC | 216 E ONTARIO ST | INTERIOR ALTERATIONS TO LOBBY & 2ND FLOOR AMENITIES / BATHROOMS OF AN EXISTING HOTEL AS PER PLANS. | $700,000 |
| 100609791 | 2015-10-15 | Mechanical / HVAC | 3317 N LINCOLN AVE | REVISION TO PERMIT NUMBER #100583027 FOR HVAC WORK, AS PER PLANS. | $8,000 |
| 100596324 | 2015-08-31 | Mechanical / HVAC | 3317 N LINCOLN AVE | REVISION TO PERMIT NUMBER #100583027 FOR INTERIOR CHANGES, NEW NON-COMBUSTIBLE MATERIAL PLATFORM, REMOVE SINK AT LOWER LEVEL & 1ST FLR TO EXISTING DANCE STUDIO AS PER ARCHITECT'S P | $20,000 |
| 100605158 | 2015-07-16 | Mechanical / HVAC | 1445 N STATE PKWY | REPLACE THE EXISTING CITY WATER COOLED 10 TON AIR HANDLER WITH SAME CAPACITY AIR FLOW AND REMOTE CONDENSING UNITS.NEW CARRIER AIR HANDLING UNIT WITH TWO 5 TON COMPRESSORS, AIR COOL | $0 |
| 100583027 | 2015-05-13 | Mechanical / HVAC | 3317 N LINCOLN AVE | INTERIOR AND EXTERIOR ALTERATIONS TO FIRST FLOOR AND LOWER LEVEL FOR DANCE STUDIO OF AN EXISTING 4 STORY MASONRY BUILDING, AS PER PLANS.NO REFRIGERATION WORK (CONDITIONAL PERMIT S | $145,000 |
| 100577900 | 2015-03-23 | Mechanical / HVAC | 2525 S MICHIGAN AVE | INTERIOR ALTERATIONS TO EXISTING 9TH FLOOR PATIENT ROOMS AN ADJACENT SPACES IN AN EXISTING HOSPITAL AS PER PLANS | $4,401,739 |
| 100580751 | 2015-02-10 | Mechanical / HVAC | 5758 S MARYLAND AVE | DUCHOSSIS CENTER FOR ADVANCED MEDICINE - DCAM - 6TH FLOOR, EAST WINGCLINIC RENOVATION: RENOVATION AND EXPANSION OF EXISTING INFUSION THERAPY PROGRAM IN EXISTING SPACE. 24,768 SQUAR | $6,200,000 |
| 100580329 | 2015-02-06 | Mechanical / HVAC | 5815 S MARYLAND AVE | CHANGE VENT CONTRACTOR TO YMI MECHANICAL AND PLUMBER TO C.J. ERICKSON PLUMBING FOR PERMIT 100573625 | $1 |
| 100540321 | 2014-11-20 | Mechanical / HVAC | 5758 S MARYLAND AVE | 5TH FLOOR DCAM - INTERIOR ALTERATIONS TO THE 5TH FLOOR CLINIC PER PLAN. | $3,710,000 |
| 100569326 | 2014-11-06 | Mechanical / HVAC | 2515 N CLARK ST | REPLACE (2) AHU ON GROUND FLOOR. | $0 |
| 100569166 | 2014-11-06 | Mechanical / HVAC | 2515 N CLARK ST | REPLACE TWO SPLIT SYSTEMS WITH TWO CARRIER SPLIT SYSTEMS,ONE 15 TON, ONE 10 TON, REMOTE, AIR COOLED, R410A, LOCATED ON THE FIRST FLOOR PARKING GARAGE. THE UNITS SERVE THE LOBBY AND | $0 |
| 100543264 | 2014-10-15 | Mechanical / HVAC | 5758 S MARYLAND AVE | INTERIOR ALTERATIONS TO AN EXISTING 2ND FLOOR CLINIC IN AN EXISTING MEDICAL OFFICE BUILDING AS PER PLANS.**SELF-CERTIFICATION - CONDITIONAL PERMIT: SUBJECT TO FIELD INSPECTIONS & A | $250,000 |
| 100539534 | 2014-07-30 | Mechanical / HVAC | 5215 N CALIFORNIA AVE | INTERIOR ALTERATIONS TO EXISTING 8TH FLOOR MEDICAL OFFICE SPACE (SUITE F804) IN AN EXISTING MEDICAL OFFICE BUILDING AS PER PLANS. | $687,000 |
| 100539528 | 2014-07-25 | Mechanical / HVAC | 5215 N CALIFORNIA AVE | INTERIOR ALTERATIONS TO EXISTING 7TH FLOOR MEDICAL OFFICE SPACE (SUITE F715) IN AN EXISTING MEDICAL OFFICE BUILDING AS PER PLANS. | $421,109 |
| 100539458 | 2014-07-25 | Mechanical / HVAC | 5215 N CALIFORNIA AVE | INTERIOR ALTERATIONS TO EXISTING 7TH FLOOR MEDICAL OFFICE SPACE (SUITE F713) IN AN EXISTING MEDICAL OFFICE BUILDING AS PER PLANS. | $649,535 |
| 100539442 | 2014-07-17 | Mechanical / HVAC | 5215 N CALIFORNIA AVE | INTERIOR ALTERATIONS TO EXISTING 6TH FLOOR MEDICAL OFFICE SPACE (SUITE F604) IN AN EXISTING MEDICAL OFFICE BUILDING AS PER PLANS. | $415,616 |
| 100507552 | 2014-05-09 | Mechanical / HVAC | 5139 S ASHLAND AVE | NEW CONSTRUCTION OF A TWO (2) STORY MEDICAL OFFICE BUILDING (NO BASEMENT) AS PER PLANS. | $5,000,000 |
| 100522898 | 2014-03-20 | Mechanical / HVAC | 5140 N CALIFORNIA AVE | INTERIOR ALTERATIONS TO 4TH FLOOR OFFICE SPACE, WITH ASSOCIATED WORK ON THE 3RD FLOOR & ROOF, IN AN EXISTING MEDICAL OFFICE BUILDING AS PER PLANS. **CERTIFIED PLANS CORRECTIONS: CO | $4,000,000 |
| 100520701 | 2014-01-31 | Mechanical / HVAC | 2740 W FOSTER AVE | INTERIOR ALTERATIONS TO EXISTING LOWER LEVEL (BASEMENT) OFFICE SPACE AND ASSOCIATED WORK ON THE 4TH FLOOR / ROOF AS PER PLANS. | $1,500,000 |
| 100511204 | 2013-12-24 | Mechanical / HVAC | 5345 N SHERIDAN RD | 1,375 SF 1ST FLOOR STOREFRONT INTERIOR TENANT BUILDOUT CONSISTING OF WAITING, RECEPTION, NURSE STATION, FOUR (4) EXAM ROOMS, NEW TOILET ROOM, BREAK AREA WITH EXISTING TOILET TO RE | $229,993 |
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 →