Powering commercial construction. Protecting products. Your EPS insulation & supply specialist.
Tough on the Job. Easy on the Budget.
Discover the difference with Source Mountain Supply. Our company provides top-notch solutions tailored to meet your specific needs. Source Mountain Supply provides high-performance expanded polystyrene (EPS) insulation sheets designed for demanding commercial construction environments. Our solutions support energy efficiency, structural performance, and long-term durability across a wide range of applications.
From EPS wall insulation panels to custom cut EPS insulation, we work with contractors, builders, and project managers to deliver materials that meet exact specifications — without delays or inflated costs. Whether you need below-grade insulation, construction foam products, Plastic Bags, Wipers, or Stretch Wrap, WE’VE GOT YOU COVERED!!!
Explore our custom foam products for construction
Our Solutions
We offer a full range of foam solutions engineered for performance, efficiency, and flexibility across commercial and industrial applications:
Construction Foam Insulation
Our EPS foam for commercial construction is widely used for wall systems, roofing, and below-grade applications. Known for its strength, moisture resistance, and thermal efficiency, EPS insulation provides long-term value in demanding environments.
Custom EPS Foam
We specialize in custom cut EPS insulation, manufactured to meet your exact project specifications. Whether you need specific thicknesses, densities, or shapes, we deliver precision-cut solutions that integrate seamlessly into your build.
EPS Wall Insulation Panels
Our EPS wall insulation panels are designed to improve thermal performance while maintaining structural integrity. Ideal for both new construction and retrofit projects, these panels help reduce energy costs and improve building performance.
Custom EPE Foam & Packaging Solutions
In addition to insulation, we provide protective foam packaging solutions designed to safeguard products during shipping and handling.
Why Choose Source Mountain Supply?
Source Mountain Supply, LLC sells and ships a variety of industrial supplies out of our location in West Bend, WI. We specialize in custom foam packaging and construction foam products and will meet or beat the prices of our competitors.
Need your items as soon as possible? You’ll be happy to know we offer quick turnaround times. Are you a new customer? Get 10% off your first order!
Contact us today to learn more or fill out our online form to request a free quote on the products you need.
Will Meet or Beat Competitor Prices
Quick Turnaround Times
Over 12 Years of Experience
Locally and Family Owned
Free Quotes
Solutions built from real-world performance
From wall and roof insulation to custom foam packaging, our solutions are built for real-world performance across commercial construction environments.
Common applications include:
• Exterior and interior EPS wall insulation panels for improved thermal control
• Below-grade insulation for foundations and structural support
• Roofing systems requiring lightweight, durable insulation materials
• Protective packaging using precision custom cut EPS insulation
Whether you’re working on a new build or retrofit project, our foam products are designed to meet performance standards while staying cost-effective.
High-Quality Foam Solutions for Every Application
From wall & roof insulation to custom foam packaging, we offer a wide range of products designed to provide superior protection and performance.