Sierra Insulation has been serving the foothills and mountains for nearly 33 years. Sierra insulation can handle custom residential, commercial and retro-fit applications. We are fully insured and bonded, and are licensed in California and Nevada. We are proud to be members of the Nevada County Contractors Association and Contractors Association of Truckee-Tahoe.

Sierra Insulation offers a full line of insulation including expanding spray foam, formaldehyde free fiberglass, cellulose, cotton batts and radiant barrier.

Sierra Insulation has emphasized quality installation practices long before it became fashionable. Not all insulation companies are the same. A lower quality, cheaper insulation job, will cost you for the life of the structure far more than the money you save. Our installers have received intensive training on the latest applications and techniques. With over 13,000 insulation jobs completed since 1979, Sierra Insulation has the experience you should demand!