Our Services

For over 100 years, our expert team of mechanical insulation professionals has been providing the highest quality mechanical insulation to our customers — meeting all their fire-stopping, energy-efficiency, and pollutant-free requirements. That’s what makes us the best in the industry. Learn More


Energy Savings

Every day, industrial, commercial, residential, and government businesses face new demands for energy efficiency. That’s where we come in. The highly trained energy efficiency experts of Local #18 are committed to helping our customers cut down on both energy consumption and utility costs. Learn More


Our Work

The International Association of Heat and Frost Insulators Local 18 partners with the Insulation Contractors Association of Indianapolis to guarantee our customers receive a finished product that is second to none. Come discover what our team of nearly 300 members can do. Learn More

Better business through insulation

Providing the best mechanical insulation in the business requires partnering with the best affiliates in the market — and that’s exactly what we do. Come explore our wide network of industry partnerships Our Affiliates

Become an Insulator

Ready to join the team? When you become an apprentice, you’ll receive hands-on training both inside and outside the classroom in our four-year, BAT-certified program at Ivy Tech. And, unlike most other post-high-school education, you’ll earn a living wage from day one. Apprenticeship

Our Story

Since 1912, the International Association of Heat and Frost Insulators Local 18 has had one mission — create the most highly skilled, drug-free workforce of professional insulators in the industry. Since then, we’ve stood face to face with the challenge of building a safer, healthier, greener, and more efficient world for over 100 years. And we’re just getting started. Our Story

We Are Local 18

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