Local Insulation Installation and Building Science Expertise

At South Texas Insulation, we believe each customer deserves high quality at every step of their insulation project. As a locally owned company, we provide un-matched service and exceptional workmanship for every job. Founded in 2007, we service the greater San Antonio market and beyond. As one of the largest locally owned and operated home insulation companies in Texas, we are proud of the attentive, responsive service we provide and the building science expertise that we deliver. We consult with homeowners, homebuilders and commercial contractors to craft energy-efficient solutions with superior fiberglass insulation and spray foam products.


Our Service Area

South Texas Insulation is headquartered in San Antonio, Texas.
We are proud to serve in and around the following communities: Fredricksburg, Boerne, New Braunfuls, San Marcos, Hondo, Pleasanton, Floresville, Kerrville, Lockhart. Gonzoles and Kenedy.


Our Promise

We stand behind our insulation services from beginning to end, and we are committed to your satisfaction for each project. Our goal is for you to be comfortable at home and comfortable with us. Contact us today at 210.599.8681 to schedule an appointment to review your insulation needs.

Our Employees

Our employees are trained and certified in building science to offer advanced solutions that last. We have years of experience in the application and installation of a variety of insulation and spray foam products. All of them have completed intense training in both the field as well as in the classroom, giving you the confidence you need that the job will be done right. Our employees are also highly skilled, reliable insulation installers and project managers who have met rigorous standards for performance and work ethic.


Ernie Slaughter

Owner of South Texas Insulation
San Antonio, Texas

Mission Statement

At South Texas Insulation, we are committed to providing honest, energy-efficient building consultation, excellent customer service and reliable workmanship at a fair price.

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Added Peace of Mind

Founded in 2007, we take pride in our knowledge, integrity and experience. As the region’s Owens Corning® Certified Energy Expert® professional, we have extensive industry training on how to deliver high-performance insulation solutions. Plus, we are certified to offer the Owens Corning limited lifetime warranty on qualifying products and exclusive limited lifetime warranty on workmanship.

Honest, Energy-Efficient Building Consultation

Our hard-working crews offer a positive return on our client’s property investment. Our objective is to create a more energy-efficient, healthier and quieter in-home environment.

Quality Matters

Each job is diligently supervised and checked to ensure South Texas Insulation keeps a high standard of quality.

See actual warranty for complete details, limitations and requirements. For the lifetime of the Home beginning from date of installation by an Owens Corning® Certified Energy Expert®.