Tell the Department of Labor that you support continued oversight on our Apprenticeship Program.

Our purpose is to assist our members in securing employment while defending their rights and advancing their interests through education and cooperation. Learn more about our mission...

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2019 MESO registry bill introduced 

Let your Reps. know that you support the Mary Jo Lawyer-Spano Mesothelioma Patient Registry Act of 2019 (H.R. 1824). Click here for more information about the bill and how you can show your support.

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from gp mccourt on dol's iraps 

IRAPs are a direct threat to our Registered Insulators Union Apprenticeship program and to the entire construction industry. Tell the DOL that government oversight is important to the registered construction industry apprenticeship programs.

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Learn about Our Trades

Insulators are trained and skilled at a multitude of construction trades including: mechanical insulation, firestopping, asbestos and lead mitigation, sound attenuation and specialty fabrications.

3e energy audit

Are your mechanical systems properly insulated? Receive an expert energy assessment that may save you money by showing you ways to save on energy consumption.

Professional Craftsman Code of Conduct Badge

The HFIAW “Professional Craftsman Code of Conduct” (PCCC) promotes jobsite excellence and customer satisfaction. The goal of the PCCC is a job built on time, under budget, and built right the first time. Learn more about our Professional Craftsmen Code of Conduct.

Video Showcase

Firestopping Installation

Learn about the importance of properly installing Firestopping materials through standardized and proper design, installation, inspection and maintenance.

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.

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Our Trades

Our Trades

Today’s union insulator is skilled at a multitude of construction trades required for mechanical insulation installations...

Insulation Value

Insulation Value

Properly installed insulation saves money, improves lives, and protects the environment...

Member Services

Member Services

Access additional resources for members of the International Association of Heat and Frost Insulators & Allied Workers...


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