48 Years in Montana Attics

Lilienthal Insulation has nearly a half century of experience in Montana homes, lending us a level of expertise that's unmatched in the region.
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Professional Quality and Comfort

We emphasize superior installation and quality materials to ensure that each project meets the high standards of our customers.
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Proudly Serving Flathead Valley

We're a trusted, local company proudly serving the Flathead Valley region of Montana.
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Insulation Services

We offer a full range of insulation services, with an emphasis on quality installation and optimum performance.

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Energy Audits

Learn where your home is wasting energy, and identify the most cost-effective improvements for energy savings and improved comfort.

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DIY Products at our Retail Store

Are you the do-it-yourself type? No problem. We offer a range of products and tools for the DIY enthusiast to make cost-effective energy saving improvements.

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