Heat & Frost Insulators Local 17 — Chicago / Tinley Park

Jurisdiction

Chicago and Northern Illinois — Cook County, the Chicago metropolitan area, and surrounding counties. Headquartered in Tinley Park, IL

Local 17 organizes the Heat & Frost Insulators trade across Chicago and Northern Illinois through the asbestos-era buildout of one of the nation’s most concentrated industrial regions. Members were dispatched to the steel mills of the Calumet region, the refineries of the Whiting-Hammond corridor, the major Chicago hospitals, the Commonwealth Edison/ComEd generating stations, and the rail infrastructure that connected them.

For state-specific filing deadlines, primary courts, and the full jobsite catalog within the Local’s territory, see the partner state archive:

Notable workplaces in Local 17 territory

Through the asbestos era (roughly 1920s through early 1980s), Local 17 members were dispatched to facilities throughout the jurisdiction — many of which are now documented in federal NESHAP filings, state regulatory databases, and public asbestos litigation records. Major workplaces in the Local 17 historical territory included:

U.S. Steel South Works (Chicago) · Republic Steel and Inland Steel (East Chicago/Gary corridor) · Commonwealth Edison generating stations (Fisk, Crawford, State Line, Will County, Powerton, Joliet) · Chicago Transit Authority infrastructure · Northwestern, Michael Reese, Cook County, Rush, and University of Chicago hospitals · steel construction across the Loop · O’Hare Airport construction and expansion · the major rail yards (Englewood, Corwith, Proviso).

These are categories of workplace, not an exhaustive list. Local 17 dispatch records held by the Local’s business office contain the specific job-by-job assignments for individual members. For an active or retired member pursuing an asbestos claim, those dispatch records are typically the foundational evidence establishing which jobsites the member was on and when.

Why this Local matters for asbestos claims

Chicago is one of the densest industrial-exposure geographies in the country for asbestos litigation, and Local 17 dispatch records correspond to many of the highest-volume jobsites in federal asbestos research. Madison County and Cook County Illinois have historically been among the nation’s top asbestos litigation venues.

Products Local 17 insulators handled

Insulators in any jurisdiction worked the same general categories of asbestos-containing products through the asbestos era. The specific manufacturers varied by region, contract, and decade:

  • Pipe covering — Magnesia, calcium silicate, fiberglass-asbestos blends (Owens-Corning Kaylo, Johns-Manville Magnesia, Pittsburgh Corning Unibestos)
  • Block insulation — Calcium silicate or 85% magnesia block (details on AsbestosIndex)
  • Insulating cement — Dry-mixed asbestos cement, hand-applied to joints and irregular fittings — historically the highest-fiber-release product insulators handled
  • Refractory products — High-temperature furnace and boiler linings (refractory brick)
  • Gaskets and packing — Flange gaskets, valve packing (Garlock, John Crane, Anchor Packing)
  • Asbestos cloth and millboard — Outer wrapping, fire blankets, jacketing
  • Spray fireproofing — W.R. Grace Monokote and competitor products applied to structural steel

See the Asbestos Products page for the full catalog of products documented in insulator-era exposure.

If you or a family member is a Local 17 insulator

You have one of the most-documented exposure histories of any trade in U.S. occupational-health research. The medical literature has tracked your trade specifically since the 1960s. Your union health funds have actuarial data going back decades. The manufacturers that supplied your jobsites have funded over $30 billion in asbestos bankruptcy trust funds — many of which are still paying claims.

Free, confidential case review with an attorney experienced in insulator asbestos cases:

(314) 588-0558 — O’Brien Law Firm

All consultations are free. No fee unless a financial recovery is made on your behalf.

This page documents the historical context of Local 17’s jurisdiction in asbestos exposure research. It is not produced by or endorsed by the International Association of Heat & Frost Insulators and Allied Workers or Local 17. Information is drawn from public asbestos litigation records, federal NESHAP filings, state regulatory databases, and public industry-publication histories. Rights Watch Media Group LLC is an independent media publisher; O’Brien Law Firm is the editorial sponsor of this site.