Paul was great to work with and helped us figure out the best solution. Timely communication, delivered on time, zero complaints. Highly recommend!
Powering Commercial Construction. Protecting Products. Your EPS Insulation & Supply Specialist.
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:
Roofing contractors can start with EPS flute fill, tapered roof insulation or polyiso roof boards. Concrete contractors can see under-slab and radiant floor insulation.
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. See our EPS foam sheets and EPS foam blocks.
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. See custom EPE foam and custom foam packaging supplies.
Solutions Built from Real-World Performance
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Exterior and interior EPS wall insulation panels for improved thermal control
From wall and roof insulation to custom foam packaging, our solutions are built for real-world performance across commercial construction environments.
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Below-grade insulation for foundations and structural support
Whether you’re working on a new build or retrofit project, our foam products are designed to meet performance standards while staying cost-effective.
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Roofing systems requiring lightweight, durable insulation materials
Protective packaging using precision custom cut EPS insulation.
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.
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Will Meet or Beat Competitor Prices
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Locally and Family Owned
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Quick Turnaround Times
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Free Quotes
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In Business since 2012
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.
Satisfied Customer Reviews
Paul has been a trusted vendor for 11 years. Quality service and quality materials. Items are stocked for us and ready for release. I recommend Source Mountain Supply for your needs.
Paul was amazing to work with highly recommend.
I have used Source Mountain Supply for all my odd cardboard and styrofoam needs. Paul always comes in with the best price and great deliver service. On time and perfect for my needs. Highly recommend. Keeps my business running.
Paul has been very helpful getting things resolved whenever we've had problems or need product. Been doing business with Source Mountain for over 20 years.
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.
Get a Free Quote Today
Need something specific?
We specialize in custom foam solutions tailored to your exact specifications.
Don't settle for less. Contact us now for a free quote and take advantage of our competitive pricing.
Contact us today for a free quote and discover how Source Mountain Supply can meet all your foam needs.