COMPANY RECORD · CHICAGO, IL
Demco — permit history in Chicago, IL
Demco appears on 38 Chicago permit records from 2009 through 2026, all of them mechanical / hvac.
Permit categories
| Category | Permits | Share |
|---|---|---|
| Mechanical / HVAC | 38 | 100% |
Activity by year
| Year | Permits issued |
|---|---|
| 2009 | 2 |
| 2010 | 3 |
| 2011 | 7 |
| 2012 | 1 |
| 2014 | 2 |
| 2015 | 6 |
| 2019 | 4 |
| 2020 | 1 |
| 2022 | 2 |
| 2024 | 4 |
| 2025 | 4 |
| 2026 | 2 |
Busiest year on record: 2011, with 7 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 |
|---|---|---|
| Construction Design Services, Ltd. | 9 | 2011-07-18 |
| Paul Borg Construction Co Inc | 6 | 2026-09-15 |
| Exclusive Construction Services, Inc | 6 | 2019-06-27 |
| Interior Alterations | 2 | 2015-12-04 |
| Gregg Builders L. L. C. | 2 | 2009-10-01 |
| Interior Construction Group, Inc | 2 | 2015-04-02 |
| Bear Construction Company | 2 | 2022-02-23 |
| Ace Construction Corp. | 1 | 2010-07-01 |
| Anchor Mechanical, Inc | 1 | 2025-05-19 |
| Executive Construction , Inc. | 1 | 2024-12-27 |
| Conforti Construction Services, Inc. | 1 | 2025-06-10 |
| Omni Commercial Group, Inc. | 1 | 2024-04-11 |
17 companies are named alongside Demco 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 |
|---|---|
| 100 S WACKER DR | 2026-09-15 |
| 360 N STATE ST | 2025-06-10 |
| 150 S WACKER DR | 2025-06-05 |
| 150 E ONTARIO ST | 2025-05-19 |
| 141 W JACKSON BLVD | 2024-12-27 |
| 433 W VAN BUREN ST | 2024-04-11 |
| 200 N LA SALLE ST | 2022-05-20 |
| 404 W HARRISON ST | 2022-02-23 |
| 225 S CANAL ST | 2020-03-06 |
| 300 S WACKER DR | 2019-06-27 |
| 400 S LA SALLE ST | 2015-12-04 |
| 5640 S ELLIS AVE | 2015-05-27 |
| 515 N STATE ST | 2015-04-02 |
| 326 W 64TH ST | 2014-12-22 |
20 distinct addresses on record; the 14 most recent are shown. Declared value on record runs from $1 to $4,000,000, median $203,000. Addresses appear as the authority published them. A permit is a filing at an address, not a completed job there.
Also named on permits at the same addresses
| Company | Shared addresses | Years |
|---|---|---|
| Prime Electric Co., Inc. | 2 | 2009–2026 |
| Anchor Mechanical, Inc | 2 | 2011–2026 |
| Kelso-Burnett Co. | 2 | 2011–2026 |
| Aaa Electric Contracting Co. | 2 | 2010–2011 |
| Vox Electric Company | 1 | 2025 |
| Gurtz Electric Company | 1 | 2022–2025 |
| W. E. O'neil Construction Co. | 1 | 2022–2025 |
| Jimmy'z Masonry Corp | 1 | 2022–2025 |
Companies that also appear in Chicago permit records at addresses where Demco filed, in any year. Sharing an address is a documented co-appearance, not proof that they worked on the same project or with each other.
Permits on record
38 permits; open the full list
| Permit | Issued | Category | Address in source | Scope as filed | Declared value |
|---|---|---|---|---|---|
| 101087669 | 2026-09-15 | Mechanical / HVAC | 100 S WACKER DR | SPR 2019 CBRC: INTERIOR DEMOLITION TO AN EXISTING OFFICE BUILDING OFFICE SPACE ON THE 11TH FLOOR PER PLANS. (OCCUPANCY GROUP B CONSTRUCTION TYPE 1A) | $150,000 |
| 101087918 | 2026-09-04 | Mechanical / HVAC | 100 S WACKER DR | SPR 2019 CBRC: INTERIOR ALTERATION OF AN EXISTING 11TH FLR RESTROOM CORE RENOVATION WITH NEW PLUMBING AND ELECTRICAL WORK - NO CHANGE IN USE. (OCCUPANCY GROUP B; TYPE 1A CONSTRUCTI | $225,000 |
| 101068998 | 2025-06-10 | Mechanical / HVAC | 360 N STATE ST | SPR 2019 CBRC: INTERIOR ALTERATIONS TO GROUND AND SECOND FLOORS OF EXISTING 4 STORY, A-3 OCCUPANCY MUSEUM FOR NEW MUSEUM (CULTURAL EXHIBITS AND LIBRARIES) TENANT TO INCLUDE SELECT | $100,000 |
| 101069970 | 2025-06-05 | Mechanical / HVAC | 150 S WACKER DR | SELF-CERT 2019 CBRC - TENANT BUILDOUT OF 9,235 SQFT FOR BUSINESS OFFICE ON THE 26TH FLOOR, INCLUDING ALTERATIONS TO PLUMBING, ELECTRICAL, AND MECHANICAL. (OCCUPANCY GROUP B; TYPE I | $395,000 |
| 101069686 | 2025-06-02 | Mechanical / HVAC | 150 S WACKER DR | SELF-CRT 2019 CBRC- INTERIOR TENANT BUILD-OUT OF 4,872 SF FOR SPEC SUITE OFFICE SPACE INCLUDING ELECTRICAL, PLUMBING, AND MECHANICAL. (OCCUPANCY GROUP B; TYPE IA CONSTRUCTION) | $389,760 |
| 101065308 | 2025-05-19 | Mechanical / HVAC | 150 E ONTARIO ST | SPR 2019 CBRC: INSTALL THREE (3) NATURAL GAS-FIRED MICROTURBINE GENERATORS WITH HOT WATER EXHAUST HEAT RECOVERY COILS ON PROPOSED STEEL FRAMEWORK OUTDOORS ON THE EXISTING ROOF OF A | $500,000 |
| 101061378 | 2024-12-27 | Mechanical / HVAC | 141 W JACKSON BLVD | SELF-CERT 2019 CBRC: NONSTRUCTURAL INTERIOR DEMOLITION, INCLUDING REMOVAL OF MEP SYSTEMS IN EXISTING OFFICE BUILDING ON THE 8TH FLOOR TO TWO (2) OFFICE SUITES 0845 & 0850 AS PER PL | $194,000 |
| 101060761 | 2024-10-24 | Mechanical / HVAC | 150 S WACKER DR | SELF-CERT 2019 CBRC - INTERIOR TENANT BUILDOUT OF 5,398 SQFT FOR BUSINESS OFFICE ON THE 30TH FLOOR, INCLUDING ALTERATIONS TO PLUMBING, ELECTRICAL AND MECHANICAL. (OCCUPANCY GROUP | $385,000 |
| 101057276 | 2024-09-10 | Mechanical / HVAC | 100 S WACKER DR | SPR 2019 CBRC: INTERIOR ALTERATIONS TO AN EXISTING OFFICE BUILDING TO CONSTRUCT A NEW OFFICE SPACE ON THE 2ND FLOOR PER PLANS. (OCCUPANCY GROUP B CONSTRUCTION TYPE 1A)(CONDITIONAL | $310,000 |
| 101040520 | 2024-04-11 | Mechanical / HVAC | 433 W VAN BUREN ST | SPR 2019 CBRC: INTERIOR ALTERATIONS TO EXISTING 7TH FLOOR OFFICE SPACE, SUITE 7S. NO CHANGE TO EXISTING USE. OCCUPANCY B / CONSTRUCTION TYPE 1A | $787,731 |
| 100967737 | 2022-05-20 | Mechanical / HVAC | 200 N LA SALLE ST | SELF-CERT 2019 CBRC: TENANT OFFICE BUILD-OUT OF 7,216 SQUARE FEET INCLUDING A RECEPTION AREA, OFFICES, CONFERENCE ROOMS AND OPEN OFFICE AREAS ON THE 7TH FLOOR, SUITE 750. CURRENT O | $2,500,000 |
| 100953553 | 2022-02-23 | Mechanical / HVAC | 404 W HARRISON ST | SELF-CERT 2019 CBRC: BUILDOUT OF COMMON AREAS, ELEVATOR LOBBIES F 05008 & J 05010, COMMON CORRIDORS 05007 & 05009, NEW DEMISING WALLS AND ASSOCIATED MEP/FP INFRASTRUCTURE ON THE 5T | $456,000 |
| 100866121 | 2020-03-06 | Mechanical / HVAC | 225 S CANAL ST | REVISION TO PERMIT # 100852081 TO CHANGE VENT CONTRACTOR TO DEMCO MECHANICAL SERVICES & METAL SPECIALTIES | $1 |
| 100827191 | 2019-06-27 | Mechanical / HVAC | 300 S WACKER DR | SELF CERT: INTERIOR ALTERATIONS TO OFFICE SUITE 1250 PER PLANS. NO CHANGE TO EXISTING USE. | $300,000 |
| 100811870 | 2019-04-09 | Mechanical / HVAC | 300 S WACKER DR | SELF CERT: INTERIOR ALTERATIONS TO OFFICE SUITE 1850 PER PLANS. NO STRUCTURAL WORK. NO CHANGE IS USE. | $225,000 |
| 100808598 | 2019-04-04 | Mechanical / HVAC | 300 S WACKER DR | SELF CERT: INTERIOR ALTERATIONS TO OFFICE SUITE 2424 PER PLANS. NO STRUCTRUAL WORK. NO CHANGE IS USE. | $250,000 |
| 100808380 | 2019-03-11 | Mechanical / HVAC | 300 S WACKER DR | REVISION TO PERMIT NO. 100744293; TO CHANGE GENERAL CONTRACTOR TO EXCLUSIVE CONSTRUCTION ERVICES, INC, HVAC CONTRACTOR TO DEMOC MECHANICAL AND PLUMBING CONTRACTOR TO TRITON PLUMBIN | $1 |
| 100623055 | 2015-12-04 | Mechanical / HVAC | 400 S LA SALLE ST | SELF-CERT PROJECT- INTERIOR BUILD OUT OF OFFICE SPACE ON THE 3RD FLOOR IN AN EXISTING OFFICE BUILDING AS PER PLANS.18,500 SF. CONDITIONAL PERMIT SUBJECT TO FIELD INSPECTION. | $1,500,000 |
| 100609009 | 2015-08-21 | Mechanical / HVAC | 400 S LA SALLE ST | SELF-CERT. PROJECT - INTERIOR ALTERATIONS IN EXISTING OFFICE BUILDING TO THE EXISTING BUILDING CAFÉ ON THE 4TH FLOOR AS PER PLANS. | $300,000 |
| 100582038 | 2015-05-27 | Mechanical / HVAC | 5640 S ELLIS AVE | PD #43 -- INTERIOR ALTERATIONS TO GROUND FLOOR SPACE FOR DELI PER PLANS. ARAMARK DELI | $100,000 |
| 100592498 | 2015-04-29 | Mechanical / HVAC | 400 S LA SALLE ST | REPAIR/REPLACE 30 SINKS,13 URINALS AND 40 TOILETS,ALL SAME AS EXISTING. REPLACE DIVIDERS,DRYWALL, FLOOR, WALL AND CEILING TILES. REPLACE EXHAUST GRILLES. ELECTRICAL ON SEPARATE | $600,000 |
| 100583980 | 2015-04-02 | Mechanical / HVAC | 515 N STATE ST | INTERIOR ALTERATOINS TO A SINGLE TENANT OFFICE SPACE (SUITE 2500) AS PER PLANS | $4,000,000 |
| 100575101 | 2015-01-21 | Mechanical / HVAC | 515 N STATE ST | SELF-CERTIFICATION: INTERIOR ALTERTIONS TO A SINGLE TENANT OFFICE SPACE (MECHANICAL ONLY, NO ELECTRICAL OR OTHER WORK UNDER SCOPE OF PERMIT) SUITE 2500 AS PER PLANS, 2,583 SQ. FT. | $120,000 |
| 100537234 | 2014-12-22 | Mechanical / HVAC | 326 W 64TH ST | INTERIOR ALTERATIONS AT EXISTING HOSPITAL TO INCLUDE DATA CENTER RELOCATION AND NEW EXTERIOR DIESEL FUEL GENERATOR AS PER PLAN | $140,000 |
| 100564250 | 2014-10-06 | Mechanical / HVAC | 400 S LA SALLE ST | REVISION TO PERMIT # 100522290 ISSUED 1/24/2014 TO CHANGE THE HVAC CONTRACTOR OF RECORD TO DEMCO. | $1 |
| 100444409 | 2012-06-18 | Mechanical / HVAC | 435 N MICHIGAN AVE | RENOVATION OF EXISTING OFFICE TENANT SUITE ON SECOND FLOOR FOR TRIBUNE AS PER PLANS. (SELF CERTIFICATION PROJECT - SUBJECT TO AUDIT & FIELD INSPECTION) | $100,000 |
| 100399747 | 2011-07-18 | Mechanical / HVAC | 1460 N HALSTED ST | NEW TENANT DEMISING WORK AT 1460 N HALSTED, 1ST FLOOR, WORK INCLUDES GENERAL CONSTRUCTION, FINISHES, MECHANICAL, ELECTRICAL, AND PLUMBING. NO STRUCTURAL WORK. | $10,000 |
| 100391349 | 2011-05-17 | Mechanical / HVAC | 1460 N HALSTED ST | INTERIOR MODIFICATIONS TO AN EXISTING TENANT BUILD OUT TO ACCOMMODATE NEW TENANT. WORK SHALL INCLUDE MINOR SELECTIVE DEMO TO EXISTING ROOM PARTITION WALLS, CONSTRUCTION OF NEW PAR | $90,000 |
| 100388360 | 2011-04-19 | Mechanical / HVAC | 1460 N HALSTED ST | REVISIONS TO SELF-CERTIFICATION PERMIT #100381159THE SCOPE OF WORK WILL INCLUDE AN INTERIOR BUILD OUT INCLUDING THE CONSTRUCTION O NEW INTERIOR PARTITION WALLS AND CEILING, NEW PLU | $214,000 |
| 100376410 | 2011-03-15 | Mechanical / HVAC | 1414 W CHICAGO AVE | REVISION TO PERMIT FOR AUDITED SELF-CERT. PERMIT NO.100373531. INTERIOR TENANT BUILD-OUT OF A NEW DENTIST OFFICE INCLUDING EXAM ROOMS, OFFICE AREAS ETC. EXISTING HVAC, PLUMBING | $125,000 |
| 100381159 | 2011-03-01 | Mechanical / HVAC | 1460 N HALSTED ST | THE SCOPE OF WORK WILL INCLUDE AN INTERIOR BUILD OUT INCLUDING THE CONSTRUCTION OF NEW INTERIOR PARTITION WALLS AND CEILINGS, NEW PLUMBING FIXTURES, NEW ELECTRICAL CIRCUITS AS NECE | $210,000 |
| 100379475 | 2011-02-10 | Mechanical / HVAC | 3000 N HALSTED ST | INTERIOR REMODEL AND RENOVATION OF AN EXISTING MEDICAL OFFICE - SUITE # 525-527. DEMO OF EXISTING WALLS, PATCH AND REPLACE NEW PARTITIONS, CEILINGS, RELOCATE HVAC REGISTERS, PROVI | $56,000 |
| 100376086 | 2011-01-13 | Mechanical / HVAC | 3000 N HALSTED ST | THIS PROJECT CONSISTS OF A 2,380 SF EXPANSION AND PARTIAL REMODEL OF AN EXISTING 4TH FLOOR SUITE. THE WORK INCLUDES ALL REQUIRED DEMOLITION AND CONSTRUCTION OF NEW PARTITIONS, CEIL | $196,000 |
| 100374825 | 2010-12-14 | Mechanical / HVAC | 819 W BLACKHAWK ST | NEW TENANT DEMISING WORK, INCLUDING NEW GYPSUM BOARD PARTITIONS, ALTERATION OF MECHANICAL, EXTENSION OF PLUMBING AND ELECTRICAL. NO STRUCTURAL WORK. | $20,000 |
| 100373531 | 2010-12-13 | Mechanical / HVAC | 1414 W CHICAGO AVE | INTERIOR TENANT BUILD-OUT OF A NEW DENTIST OFFICE INCLUDING EXAM ROOMS, OFFICE AREAS ETC. EXISTING HVAC, PLUMBING, ELEC SYSTEMS WILL BE MODIFIED FROM THERE CURRENT OPERATIONAL STA | $125,000 |
| 100341901 | 2010-07-01 | Mechanical / HVAC | 326 W 64TH ST | MODIFY EXISTING MEANS OF EGRESS STAIR; CONSTRUCT NEW 2 STORY MEANS OF EGRESS STAIR; CREATE EXIT PASSAGEWAY FROM EXISTING MEANS OF EGRESS STAIR TO NEW MEANS OF EGRESS STAIR; REPAIR | $350,000 |
| 100309014 | 2009-10-01 | Mechanical / HVAC | 111 N CANAL ST | INTERIOR ALTERATIONS TO APPROXIMATELY 3,000 SQUARE FEET OF EXISTING OFFICE SPACE AS PER PLANS | $148,000 |
| 100295171 | 2009-07-21 | Mechanical / HVAC | 111 N CANAL ST | INTERIOR ALTERATIONS TO APPROXIMATELY 6,100 SQUARE FEET OF EXISTING OFFICE SPACE ON THE 6TH FLOOR. | $122,000 |
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.
Search these records
The 38 permits above are a static record through 2026. Select a year above to open that year’s records, or search Demco in Chicago, IL by address, trade or date range.
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 →
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