The International Association of Heat and Frost Insulators and Allied Workers

The International Association of Heat and Frost Insulators and Allied Workers (HFIAW or Insulators) is a trade union in the United States and Canada.

The primary focus of the union is to assist its membership in securing employment, to defend their rights and advance their interests as working men and women, and by education and co-operation, raise them to that position in society to which they are justly entitled.

WORK IS INSTALLED BY OUR PROFESSIONAL MECHANICAL INSULATORS THAT HAVE ACHIEVED JOURNEYMAN STATUS IN THE UNION THROUGH A MULTI-YEAR CLASSROOM AND 1,600 HOUR PER YEAR ON-THE-JOB TRAINING PROGRAM.

 

HFIAW is affiliated with the AFL-CIO and the Canadian Labour Congress and represents nearly 30,000 craftsmen in a series of construction trades.

 

Comprehensive Skills of Today’s Union Insulator

Today’s union insulator is skilled in the installation of mechanical insulation, fire stopping, asbestos and lead mitigation or abatement, sound attenuation and specialty fabrications required in custom mechanical insulation installations for commercial, industrial, medical, bio-technical, governmental and educational facilities among other customer types. This work is installed by our professional mechanical insulators that have achieved journeyman status in the union through a multi-year classroom and 1,600 hour per year on-the-job training program second to none in North America.

The International Association of Heat and Frost Insulators and Allied Workers has persevered since 1903, a testament to our founders’ commitment to the dignity, skills and well-being of our membership. For over 100 years our union has endured, through good times and bad, in peacetime and at war, through economic depression and prosperity, in favor and out of favor with governments and politicians. Through it all we not only have survived; we have flourished.

Read more about our history.
Upview of pipes utilizing insulation

HFIAW Headquarters


International Association of Heat and Frost Insulators and Allied Workers

Address: 9602 M. L. King Jr. Hwy. Lanham, MD 20706

Phone: (301) 731-9101

FAX: (301) 731-5058

General President: James McCourt

General Secretary Treasurer: Gregory T. Revard

Union Directory

There are nearly 100 Heat & Frost Insulators local unions across North America.
Visit our online directory to find and contact the local union offices closest to you in the United States & Canada.

U.S. and Canada Map Icon

Energy Audit

Are your mechanical systems properly insulated? Get an expert energy assessment and start saving money by saving energy.
Save Money

Careers in Insulation

From the start, Insulation Apprentices EARN while they LEARN.
Find Out More
Professional Craftsman Code of Conduct Badge

PCCC

The goal of the PCCC is a job completed ON TIME, UNDER BUDGET, AND BUILT RIGHT THE FIRST TIME.
Learn More