COMPANY RECORD · CHICAGO, IL
Ams Mechanical Systems, Inc. — permit history in Chicago, IL
Ams Mechanical Systems, Inc. appears on 935 Chicago permit records from 2006 through 2026, most often mechanical / hvac (49.2% of the record).
Permit categories
| Category | Permits | Share |
|---|---|---|
| Mechanical / HVAC | 526 | 49.2% |
| Plumbing | 449 | 42% |
| Electrical | 71 | 6.6% |
| General construction | 23 | 2.2% |
4 categories, as classified by the issuing authority. Small categories stay visible rather than being rounded away.
Activity by year
| Year | Permits issued |
|---|---|
| 2006 | 10 |
| 2007 | 28 |
| 2008 | 21 |
| 2009 | 35 |
| 2010 | 28 |
| 2011 | 28 |
| 2012 | 18 |
| 2013 | 37 |
| 2014 | 52 |
| 2015 | 90 |
| 2016 | 80 |
| 2017 | 90 |
| 2018 | 107 |
| 2019 | 95 |
| 2020 | 78 |
| 2021 | 36 |
| 2022 | 51 |
| 2023 | 70 |
| 2024 | 59 |
| 2025 | 41 |
| 2026 | 15 |
Busiest year on record: 2018, with 107 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 |
|---|---|---|
| James Mchugh Construction Co | 255 | 2026-04-16 |
| Bulley & Andrews, L.L.C. | 111 | 2025-05-02 |
| Pepper Construction Company | 48 | 2025-07-21 |
| Level General Contractors, LLC | 37 | 2025-09-02 |
| Power Construction Company, LLC | 34 | 2026-03-30 |
| Blue Star Properties Inc | 24 | 2025-01-10 |
| Berglund Construction Company | 20 | 2026-04-29 |
| All Masonry Const. Co. Inc | 18 | 2024-07-03 |
| Executive Construction , Inc. | 18 | 2022-10-04 |
| Ls Contracting Group, Inc. | 18 | 2026-06-10 |
| M. A. Mortenson Company | 17 | 2021-01-14 |
| Lendlease (US) Construction Inc. | 16 | 2023-04-11 |
204 companies are named alongside Ams Mechanical Systems, 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 |
|---|---|
| 363 E WACKER DR | 2026-08-17 |
| 1 E SCOTT ST | 2026-08-05 |
| 2233 S DR MARTIN L KING JR DR | 2026-07-29 |
| 400 S LA SALLE ST | 2026-07-06 |
| 500 N KINGSBURY ST | 2026-06-10 |
| 2229 S HALSTED ST | 2026-06-09 |
| 150 N MICHIGAN AVE | 2026-05-11 |
| 251 E HURON ST | 2026-04-29 |
| 7437 W ISHAM AVE | 2026-04-20 |
| 2970 N SHERIDAN RD | 2026-04-01 |
| 900 N NORTH BRANCH ST | 2026-03-30 |
| 247 E CHESTNUT ST | 2026-01-16 |
| 111 S MICHIGAN AVE | 2025-12-16 |
| 222 S RIVERSIDE PLZ | 2025-12-15 |
441 distinct addresses on record; the 14 most recent are shown. Declared value on record runs from $0 to $350,000,000, median $400,000. Addresses appear as the authority published them. A permit is a filing at an address, not a completed job there.
Permits on record
935 permits; open the 50 most recent
| Permit | Issued | Category | Address in source | Scope as filed | Declared value |
|---|---|---|---|---|---|
| 101084221 | 2026-08-17 | Plumbing | 363 E WACKER DR | OCCUPANCY TYPE R-2, CONSTRUCTION TYPE IA, EXISTING HIGH RISE CONDOMINIUM, SINGLE FLOOR OCCUPANCY, INTERIOR RENOVATION INCLUDING ELECTRICAL & PLUMBING PER PLANS.**CERTIFIED CORRECTI | $25,000 |
| B200480490 | 2026-08-05 | General construction | 1 E SCOTT ST | REPAIR/REPLACEMENT AFFECTING 1 SYSTEMS : 1 COOLING TOWER(EVAPCO, 23XRV3030NRVR45, ROOF TOP) . ELECTRICAL WORK UNDER THIS PERMIT = NO . LOCATIONS: 0 RESIDENTIAL UNIT(S), 0 NON-RES | $1,230,000 |
| 101083002 | 2026-07-29 | Plumbing | 2233 S DR MARTIN L KING JR DR | DDS 2019 CBC: INTERIOR RENOVATION OF NORTH TOWER OF EXISTING HOTEL BUILDING. RENOVATION OF 462 GUESTROOMS, GUESTROOM CORRIDORS, ELEVATOR LOBBIES. THE INTERIOR RENOVATIONS OF THE BU | $14,875,000 |
| 101081181 | 2026-07-06 | Mechanical / HVAC | 400 S LA SALLE ST | DDS 2019 CBRC: PHASE 2 OF 3: INFRASTRUCTURE UPGRADES. CONVERT 7 STORY OFFICE BUILDING TO A DATA CENTER. REINFORCEMENT OF EXISTING FLOORS. ARCHITECTURAL PLANS PROVIDED FOR REFERENCE | $51,100,000 |
| 101084038 | 2026-06-10 | Plumbing | 500 N KINGSBURY ST | SELF-CERT 2019 CBRC: INTERIOR REMODELING OF EXISTING 2-STORY SPACE WITHIN IN AN EXISTING HEALTH CLUB TO PROVIDE TWO FLOORS FOR NEW ACCESSORY ADMINISTRATIVE OFFICES AND A SPA TREATM | $800,000 |
| B200473809 | 2026-06-09 | General construction | 2229 S HALSTED ST | REPAIR/REPLACEMENT AFFECTING 1 SYSTEMS : 2 ROOFTOP PACKAGED UNIT(CARRIER, 48K5GF60-3-6AOP2SO, ROOF TOP) . ELECTRICAL WORK UNDER THIS PERMIT = NO . LOCATIONS: 0 RESIDENTIAL UNIT(S | $430,000 |
| 101081350 | 2026-05-11 | Plumbing | 150 N MICHIGAN AVE | SELF CERT 2019 CBRC: INTERIOR BUILD-OUT OF A BUILDING AMENITY LOUNGE AND TWO TENANT SPEC SUITES. SCOPE OF NEW WORK INCLUDES NEW LIGHT CONSTRUCTION OF INTERIOR PARTITIONS, INTERIOR | $5,000,000 |
| 101080165 | 2026-04-29 | Mechanical / HVAC | 251 E HURON ST | SPR 2019 CBRC: INTERIOR ALTERATIONS TO WORKROOM AND VIDEO MONITORING ROOM ON 10TH FLOOR OF EXISTING I-2 OCCUPANCY BUILDING TO INCLUDE DEMOLITION OF A WALL AND CEILINGS, CARPENTRY, | $250,000 |
| 101070598 | 2026-04-20 | Plumbing | 7437 W ISHAM AVE | SELF-CERT 2019 CBRC: NEW SECOND FLOOR FRAME ADDITION (1172 SF) AND PARTIAL INTERIOR REMODELING (444 SF) OF EXISTING ONE-STORY BRICK RESIDENCE WITH BASEMENT AND DETACHED GARAGE (NIC | $145,000 |
| 101082094 | 2026-04-16 | Plumbing | 500 N KINGSBURY ST | SELF-CERT 2019 CBRC: INTERIOR REMODELING OF EXISTING LOCKER ROOM AREA ON THE SECOND FLOOR OF AN EXISTING FOUR-STORY HEALTH CLUB PER PLANS. NO CHANGE IN USE, NO EXTERIOR WORK. (OC | $3,300,000 |
| 101070230 | 2026-04-01 | Mechanical / HVAC | 2970 N SHERIDAN RD | DDS 2019 CBRC: INTERIOR ALTERATIONS TO EXISTING 15-STORY RESIDENTIAL BUILDING TO INCLUDE ELECTRICAL SERVICE UPGRADE, BUILD-OUT OF NEW COMED VAULT / ELECTRICAL ROOM IN THE BASEMENT | $3,985,000 |
| 101076504 | 2026-03-31 | Plumbing | 500 N KINGSBURY ST | DDS 2019 CBRC: ALTERATIONS TO EXISTING 4TH FLOOR POOL DECK TO INCLUDE NEW ENCLOSED DINING AREA, NEW CONVENIENCE STAIR CONNECTING THE 3RD & 4TH FLOORS, REBUILDING THE POOL DECK, NEW | $27,000,000 |
| 101080405 | 2026-03-30 | Mechanical / HVAC | 900 N NORTH BRANCH ST | SELF-CERT 2019 CBRC: ALTERATIONS TO 5TH AND 6TH FLOOR OFFICE SPACE IN AN 8 STORY FULLY SPRINKLERED BUILDING INCLUDING PARTIAL INTERIOR DEMOLITION OF 5TH FLOOR. NEW PARTITION LAYOUT | $4,500,000 |
| 101080380 | 2026-03-09 | Plumbing | 150 N MICHIGAN AVE | SELF CERT 2019 CBRC: INTERIOR DEMOLITION OF CORPORATE OFFICE SPACE. (OCC. GRP. B; CONST. TYPE 1A). AS PER PLANS. | $5,000,000 |
| B200456054 | 2026-01-16 | General construction | 247 E CHESTNUT ST | REPAIR/REPLACEMENT AFFECTING 1 SYSTEMS : 1 CHILLER(SMARDT, WE085.2E.F2AHFA.F2AVFA.TNX, MECHANICAL ROOM) . ELECTRICAL WORK UNDER THIS PERMIT = NO . LOCATIONS: 0 RESIDENTIAL UNIT(S | $881,011 |
| 101075108 | 2025-12-16 | Plumbing | 111 S MICHIGAN AVE | DDS 2019 CBRC: INTERIOR ALTERATIONS TO GROUND FLOOR LOBBY. WORK TO INCLUDE MEP DEMO, MINIMAL ARCHITECTURAL MODIFICATIONS, MECHANICAL, ELECTRICAL AND PLUMBING UPGRADES (OCCUPANCY A- | $6,000,000 |
| 101076583 | 2025-12-15 | Plumbing | 222 S RIVERSIDE PLZ | SELF CERT 2019 CBRC: INTERIOR ALTERATIONS TO EXISTING OFFICE SUITE 2500 FOR AMRIZE CEMENT INC. WORK TO INCLUDE DEMO, NEW PARTITIONS, MECHANICAL, ELECTRICAL AND PLUMBING AS PER PLAN | $2,166,066 |
| B200453000 | 2025-12-04 | Plumbing | 455 N PARK DR | REPAIR OR IN-KIND REPLACEMENT OF 1 PLUMBING FIXTURES AS DESCRIBED IN PERMIT APPLICATION. LOCATIONS: 0 RESIDENTIAL UNIT(S), 0 NON-RESIDENTIAL UNIT(S), 11 INTERIOR COMMON AREAS, HOT | $100,000 |
| B200450119 | 2025-12-03 | General construction | 4220 S KILDARE BLVD | REPAIR/REPLACEMENT AFFECTING 1 SYSTEMS : 1 OTHER COOLING EQUIPMENT(FRICK XLP3B-12180533-030 ROOF TOP COOLING TOWER) . ELECTRICAL WORK UNDER THIS PERMIT = NO . LOCATIONS: 0 RESIDE | $150,000 |
| 101072657 | 2025-12-01 | Plumbing | 2233 S DR MARTIN L KING JR DR | DDS 2019 CBC: INTERIOR RENOVATION OF SOUTH TOWER OF EXISTING HOTEL BUILDING. RENOVATION OF 798 GUESTROOMS, GUESTROOM CORRIDORS, ELEVATOR LOBBIES. INTERIOR RENOVATION OF THE BUILDIN | $40,000,000 |
| 101072146 | 2025-11-25 | Plumbing | 100 N COLUMBUS DR | SPR 2019 CBRC: AT EXISTING GRADE LEVEL FOUNTAIN AT LURIE GARDEN, REMOVE AND REPLACE EXISTING PLUMBING AND ELECTRICAL FOR FOUNTAIN FEATURES INCLUDING LOWER-LEVEL MECHANICAL ROOM EQU | $2,566,000 |
| 101074154 | 2025-11-04 | General construction | 1211 S PRAIRIE AVE | 2019 CBC: INSTALL 3000A SWITCHGEAR IN PARKING GARAGE (OCCUPANCY A-2, CONSTRUCTION TYPE IA) WITH FEEDERS FROM COMED VAULT THROUGH WALL, INTO BACK OF SWITCHGEAR. NO LOAD CURRENTLY TO | $172,300 |
| 101075324 | 2025-10-15 | Mechanical / HVAC | 500 E 51ST ST | SELF CERT 2019 CBC INTERIOR ALTERATIONS TO 2ND FLOOR PHARMACY CLEAN ROOM INCLUDING MECHANICAL, ELECTRIC AND PLUMBING AS PER PLANS. IA CONSTRUCTION TYPE. OCCUPANCY I - INSTITUTIONA | $622,480 |
| 101070402 | 2025-10-02 | Mechanical / HVAC | 250 E SUPERIOR ST | STANDARD PLAN REVIEW 2019 CBC: STRUCTURAL PEER REVIEW, ALTERATIONS TO EXISTING 2ND FLOOR CAFETERIA/DINING SPACE TO ACCOMMODATE NEURODIAGNOSTIC/PFT TESTING CLINIC SPACE. SCOPE INCLU | $6,268,000 |
| B200439169 | 2025-09-16 | General construction | 77 E WALTON ST | REPAIR/REPLACEMENT AFFECTING 1 SYSTEMS : 2 BOILER - HOT WATER(AERCO, BMKE432, MECHANICAL ROOM) . ELECTRICAL WORK UNDER THIS PERMIT = NO . LOCATIONS: 0 RESIDENTIAL UNIT(S), 0 NON- | $350,000 |
| 101067603 | 2025-09-11 | Plumbing | 65 E WACKER PL | DDS / 2019 CBRC: INTERIOR ALTERATIONS TO EXISTING 24-STORY OFFICE BUILDING TO CONVERT FLOORS 4-24 TO RESIDENTIAL APARTMENTS (252 DWELLING UNITS) TO INCLUDE WINDOW REPLACEMENT AND A | $51,000,000 |
| B200439006 | 2025-09-04 | Electrical | 868 N WELLS ST | FIRE ALARM: MODIFICATION OF EXISTING SYSTEM. ASSOCIATED BUILDING PERMIT:B200430849. AFFECTS: 0 DWELLING UNITS; 1 NON-RESIDENTIAL UNITS. HIGH-RISE BUILDING: YES. VOICE COMMUNICATION | |
| 101071542 | 2025-09-02 | Plumbing | 216 E ONTARIO ST | SELF CERT 2019 CBRC: INTERIOR RENOVATIONS TO AN EXISTING 15-STORY HOTEL (FAIRFIELD INN & SUITES) TO UPGRADE THE BATHROOMS FROM TUB TO SHOWER WITHIN THE 184 UNITS OF THE HOTEL AS PE | $850,000 |
| 101071542 | 2025-09-02 | Mechanical / HVAC | 216 E ONTARIO ST | SELF CERT 2019 CBRC: INTERIOR RENOVATIONS TO AN EXISTING 15-STORY HOTEL (FAIRFIELD INN & SUITES) TO UPGRADE THE BATHROOMS FROM TUB TO SHOWER WITHIN THE 184 UNITS OF THE HOTEL AS PE | $850,000 |
| 101071725 | 2025-07-22 | Plumbing | 500 N KINGSBURY ST | SELF-CERT 2019 CBRC: INTERIOR REMODELING OF EXISTING WOMEN'S LOCKER ROOM WET AREAS/RESTROOM ON THE SECOND FLOOR OF AN EXISTING FOUR-STORY HEALTH CLUB PER PLANS. NO CHANGE IN USE, | $1,200,000 |
| 101070148 | 2025-07-21 | Mechanical / HVAC | 120 E DELAWARE PL | ALTERATION TO EXERCISE ROOM AND ADJOINING STAIR ON THE 8TH FLOOR IN EXISTING 66 STORY MIXED-USE BUILDING. NO CHANGE TO OCCUPANCY OR STRUCTURE. NO CHANGE TO DWELLING UNITS | $325,000 |
| 101071723 | 2025-07-21 | Plumbing | 500 N KINGSBURY ST | SELF-CERT 2019 CBRC: INTERIOR REMODELING OF EXISTING MEN'S LOCKER ROOM WET AREAS/RESTROOM ON THE SECOND FLOOR OF AN EXISTING FOUR-STORY HEALTH CLUB PER PLANS. NO CHANGE IN USE, NO | $1,400,000 |
| 101070871 | 2025-07-17 | General construction | 835 N MICHIGAN AVE | SPR 2019 CBC: ADD HX AND (4) PUMPS TO WINTERIZE COOLING TOWERS FOR THE BUILDING (IIA, OCCUPANCY U) TO BE ABLE TO PROVIDE COLLING DURING THE WINTER MONTHS AS PER PLANS. NO WORK ASSO | $2,653,780 |
| 101070645 | 2025-07-02 | Plumbing | 10000 W OHARE ST | INTERIOR RENOVATION OF TWO HOTEL GUESTROOMS TO FUNCTION AS 'MODEL ROOMS' FOR AN EVENTUAL WHOLE BUILDING RENOVATION OF ALL GUESTROOMS. RENOVATION SCOPE CONSISTS OF REMOVAL AND RELOC | $500,000 |
| B200423288 | 2025-06-03 | General construction | 140 S DEARBORN ST | HYDRONIC PIPING EXTENSION/RECONFIGURATION, REPAIR/REPLACEMENT AFFECTING 1 SYSTEMS : 2 BOILER - HOT WATER(AERCO, BME00684-EXHJI-US-C2XY BENCHMARK E BOILER, BASEMENT) 2 BOILER - H | $400,000 |
| 101068492 | 2025-05-28 | Mechanical / HVAC | 10000 W OHARE ST | RENOVATING AN EXISTING STORAGE ROOM AND JANITORS CLOSET INTO 5 SINGLE USER RESTROOMS WITHIN THE LOWER LEVEL OF THE HILTON OHARE HOTEL. THE BUILDING IS AN EXISTING RESIDENTIAL BUILD | $400,000 |
| 101068492 | 2025-05-28 | Plumbing | 10000 W OHARE ST | RENOVATING AN EXISTING STORAGE ROOM AND JANITORS CLOSET INTO 5 SINGLE USER RESTROOMS WITHIN THE LOWER LEVEL OF THE HILTON OHARE HOTEL. THE BUILDING IS AN EXISTING RESIDENTIAL BUILD | $400,000 |
| 101062437 | 2025-05-21 | General construction | 79 W MONROE ST | SPR 2019 CBRC: ADDITION OF CASEWORK WITH PLUMBING AND REWORKED ELECTRICAL TO TWO EXISTING CLASSROOMS. ADDITION OF FUME HOOD TO ONE OF THOSE ROOMS. EXISTING TYPE 1A HIGH RISE. NO CH | $150,000 |
| B200425567 | 2025-05-20 | Plumbing | 765 W ADAMS ST | REPAIR OR IN-KIND REPLACEMENT OF 1 PLUMBING FIXTURES AS DESCRIBED IN PERMIT APPLICATION. INCLUDES REPAIR OR REPLACMENT OF PLUMBING PIPING. LOCATIONS: 0 RESIDENTIAL UNIT(S), 0 NON | $1,200 |
| B200425885 | 2025-05-16 | General construction | 4100 W ANN LURIE PL | REPAIR/REPLACEMENT AFFECTING 2 SYSTEMS : 2 ROOFTOP PACKAGED UNIT(TRANE, SFHPF604P*66CTED9001, ROOF TOP) 1 ROOFTOP PACKAGED UNIT(TRANE, SFHPF604P*67CNFD9001, ROOF TOP) 2 ROOFTOP | $670,000 |
| 101068558 | 2025-05-02 | Plumbing | 151 E WACKER DR | SELF CERT 2019 CBRC: INTERIOR UPGRADES AT BALLROOM LEVEL OF EXISTING HOTEL. WORK INCLUDES REPLACEMENT IN LIGHTING, PLUMBING FIXTURES, FURNISHINGS AND FINISHES. EXISTING RESTROOMS W | $7,500,000 |
| 101068558 | 2025-05-02 | Mechanical / HVAC | 151 E WACKER DR | SELF CERT 2019 CBRC: INTERIOR UPGRADES AT BALLROOM LEVEL OF EXISTING HOTEL. WORK INCLUDES REPLACEMENT IN LIGHTING, PLUMBING FIXTURES, FURNISHINGS AND FINISHES. EXISTING RESTROOMS W | $7,500,000 |
| 101067306 | 2025-04-10 | Plumbing | 500 N KINGSBURY ST | SELF-CERT 2019 CBRC: INTERIOR REMODELING OF EXISTING LOCKER ROOM WET AREAS/RESTROOM ON THE SECOND FLOOR OF AN EXISTING FOUR-STORY HEALTH CLUB PER PLANS. NO CHANGE IN USE, NO EXTER | $3,700,000 |
| 101064217 | 2025-04-04 | Plumbing | 65 E WACKER PL | DDS 2019 CBRC: INTERIOR NON-STRUCTURAL DEMOLITION, INCLUDED REMOVAL OF MEP SYSTEMS ON FLOORS LOWER LEVEL - 24 & PENTHOUSE IN AN EXISTING 24-STORY OFFICE BUILDING AS PER PLANS.(OCCU | $900,000 |
| B200418458 | 2025-04-03 | Plumbing | 2335 N ORCHARD ST | FOR PERMIT 101045639: REPLACEMENT PLUMBING CONTRACTOR. NEW CONTRACTOR(S) LISTED UNDER "OTHER APPLICANTS AND CONTRACTORS" ON PERMIT CERTIFICATE. | |
| 101064604 | 2025-04-01 | Mechanical / HVAC | 1400 N KINGSBURY ST | SELF-CERT 2019 CBRC: ALTERATIONS TO FLOOR 2-3 ATRIUM IN AN EXISTING 3-STORY BRICK AND TIMBER OFFICE BUILDING TO BUILD OUT AMENITY TOWN HALL SPACE DEDICATED TO SINGLE OFFICE TENANT. | $700,000 |
| 101066152 | 2025-04-01 | Mechanical / HVAC | 161 E CHICAGO AVE | SPR 2019 CBRC: REPLACEMENT OF EXISTING HORIZONTAL BRANCH CHILLED WATER PIPING, ASSOCIATED ISOLATION VALVES AND PIPING INSULATION PER PLANS. REPLACEMENT ONLY. OCCUPANCY R-2, TYPE II | $4,200,000 |
| 101063740 | 2025-03-05 | Mechanical / HVAC | 3348 S PULASKI RD | DDS 2019 CBRC: INTERIOR & EXTERIOR ALTERATIONS TO EXPAND EXISTING TENANT INTO ADJACENT TENANT SPACE IN AN EXISTING 1-STORY WAREHOUSE AS PER PLANS. (OCCUPANCY GROUP: S-1, F-1, B / T | $7,279,412 |
| 101065672 | 2025-02-25 | Plumbing | 151 E WACKER DR | SELF CERT 2019 CBRC: REVISION TO PERMIT #101060969 TO ADD NEW DRAFT STOP AND WATER CURTAINS SMOKE GUARDS IN FOUR LOCATIONS DUE TO EXISTING CONDITIONS FOUND DURING CONSTRUCTION. 1A | $1,664,709 |
| 101065672 | 2025-02-25 | Mechanical / HVAC | 151 E WACKER DR | SELF CERT 2019 CBRC: REVISION TO PERMIT #101060969 TO ADD NEW DRAFT STOP AND WATER CURTAINS SMOKE GUARDS IN FOUR LOCATIONS DUE TO EXISTING CONDITIONS FOUND DURING CONSTRUCTION. 1A | $1,664,709 |
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 2026, 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 →