Stellrr Insulation & Spray Foam insulation companies in Austin . We are an Austin TX based family business founded by Shawn Mansur. Steller's mission is to Change Lives by Cleansing Homes. Our unique approach to home energy efficiency treats homes like patients. We specialize in diagnosing building assemblies and writing prescriptions from our book of solutions for Austin homeowners. We are a small company focused on providing top-quality service at a fair price. We believe in treating customers like family, not just as a number or a product sale. If you have any questions about your home or would like to schedule an appointment we would love to hear from you! Spray foam insulation is applied through specialized equipment called “sprayers” that deliver foam under pressure into wall cavities and other areas where air infiltration occurs in buildings today.