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Contractor name / Source history

Ams Mechanical Systems, Inc.

Filings naming this contractor, across the public source's longer history.

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Recent collected filings8
Earliest in these recordsJul 29, 2026
Latest in these recordsOct 23, 2026

This query uses the listed source name, ignoring letter case. Aliases and namesakes are not resolved, and this is not a company's verified complete work history. Dates mean issued / ready to issue. They do not establish construction start, completion, available bids, or work quality. Reported estimates are not added.

Filings by source date

Issued / ready
#101089457 · 120 E Delaware Pl$67,543

Source status: Active

Work description & named contractors

Interior work · Demolition · Plumbing

JMS ELECTRIC, INC. · Contractor-Electrical

NORCON, INC. · Contractor-General Contractor

AMS MECHANICAL SYSTEMS, INC. · Contractor-Plumber/Plumbing

SUN MECHANICAL SYSTEMS, INC · Contractor-Ventilation

Issued / ready
#101085786 · 65 E Wacker Pl$100,000

Source status: Active

Work description & named contractors

Roofing

TITAN ELECTRIC LLC · Contractor-Electrical

JAMES MCHUGH CONSTRUCTION CO · Contractor-General Contractor

AMS MECHANICAL SYSTEMS, INC. · Contractor-Plumber/Plumbing

HEATMASTERS MECHANICAL LLC · Contractor-Refrigeration

HEATMASTERS MECHANICAL LLC · Contractor-Ventilation

Issued / ready
#101079618 · 300 W Adams St$1,000,000

Source status: Active

Work description & named contractors

Interior work

BLOCK ELECTRIC COMPANY · Contractor-Electrical

ELECTRONIC ENVIRONMENTS CO LLC · Contractor-General Contractor

BERGLUND CONSTRUCTION · Masonry Contractor

AMS MECHANICAL SYSTEMS, INC. · Contractor-Plumber/Plumbing

AMS MECHANICAL SYSTEMS, INC. · Contractor-Refrigeration

AMS MECHANICAL SYSTEMS, INC. · Contractor-Ventilation

Issued / ready
#101084518 · 400 S La Salle St$151,112,046

Source status: Active

Work description & named contractors

Interior work · Demolition

ABCO ELECTRICAL CONSTRUCTION & · Contractor-Electrical

BONUS ELECTRIC · Contractor-Electrical

KELSO-BURNETT CO. · Contractor-Electrical

ARCO/MURRAY NATIONAL CONSTRUCTION COMPANY LLC · Contractor-General Contractor

MECHANICAL INC DBA HELM MECHAN · Contractor-Plumber/Plumbing

AMS MECHANICAL SYSTEMS, INC. · Contractor-Refrigeration

AMS MECHANICAL SYSTEMS, INC. · Contractor-Ventilation

Issued / ready
#B200477266 · 112 S Michigan Ave$450,000

Source status: Active

Work description & named contractors

Electrical

INTERACTIVE BUILDING SOLUTIONS LLC · Other Contractor

AMS MECHANICAL SYSTEMS, INC. · General Contractor

AMS INDUSTRIES, INC. · Electrical Contractor

Issued / ready
#101084221 · 363 E Wacker Dr$25,000

Source status: Active

Work description & named contractors

Interior work · Electrical · Plumbing

T & D ELECTRICAL LLC · Contractor-Electrical

JML DESIGN DEVELOPMENT, LLC · Contractor-General Contractor

AMS MECHANICAL SYSTEMS, INC. · Contractor-Plumber/Plumbing

Issued / ready
#101083002 · 2233 S Dr Martin L King Jr Dr$14,875,000

Source status: Active

Work description & named contractors

Interior work

JMS ELECTRIC, INC. · Contractor-Electrical

WALSH CONSTRUCTION COMPANY II, LLC · Contractor-General Contractor

AMS MECHANICAL SYSTEMS, INC. · Contractor-Plumber/Plumbing

ADVANCE MECHANICAL SYSTEMS, IN · Contractor-Refrigeration

ADVANCE MECHANICAL SYSTEMS, IN · Contractor-Ventilation

Planning rows link to the City Clerk, ADU or Plan Commission source; their checked scope is shown on Planning. Application rows link to the public status portal and retain its separate date meanings. Permit source: City of Chicago Building Permits ↗. Queries cover available source filings from January 1, 2006, with up to 5,000 newest records. Voided/revoked permits are excluded by the source. Historical lookups stay separate from daily alerts and do not expand citywide coverage.