Styrofoam Insulation Products

Any project with thermal sensitivity can benefit from Styrofoam insulation. When you need the right Styrofoam insulation for your building project, we have the right option for your needs. At 9 Brothers Building Supply, we offer a large selection of construction, masonry, and building products to choose from, including the right Styrofoam insulation.

Our two locations in Brentwood and Riverhead stock Styrofoam insulation giving you a local place to get everything you need for your project. Whether you just need a little or you need quite a bit, we've got you covered.

Our Styrofoam Insulation Products

We carry the DOW Brand Blue Polystyrene insulation for your thermal-sensitive projects. When you need insulation for your project, we've got you covered. This Styrofoam insulation gives you a brand you can trust with plenty of different sizes.

Advantages of Styrofoam Insulation

With high-quality Styrofoam insulation, you gain the right choice to reduce condensation and moisture. It can help control rapid heat loss or gain by stabilizing the environment. Our DOW Brand Styrofoam insulation will resist fatigue and offers a durable option for your specific needs.

What is Styrofoam Insulation Used for?

You can use this type of insulation for many different things including home and commercial insulation. It can also be used for refrigeration, truck cargo, and warehouse insulation. At home, it's commonly used for garage and attic insulation, but can also be used for your shed, if you need to insulate it from the outside weather.

There are many reasons to get the right Styrofoam insulation for your project. Whether you're working on a home, commercial building, or another type of project, you want to make sure you have just what you need. Our DOW Brand Styrofoam insulation is a high-quality option available in many densities and sizes.
Whether you want 1-inch thick, 2-inch thick, or even 4-inch thick, we offer the right thickness for your needs. Our Styrofoam insulation gives you the perfect option for your construction project.

Stop by one of our NYC area locations today and let one of our staff members help you get the right products for your construction project.

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Plainview Building Supply

1670 Islip Ave. Brentwood, NY
11717 Phone: (631) 273-3323

Rockville Centre Building Supply

28 Mill Road Riverhead, NY
11901 Phone: (631) 208-1630


70 Comsewogue Rd SUITE 9 Setauket-East Setauket, NY 11733 Phone: (631) 928-4665