Business Details
19 Years
experience
Professional Insulation Services in San Antonio
Since 2007, South Texas Insulation has established itself as a trusted, locally owned leader in insulation solutions and building science expertise. Our team of professionally trained and certified installers delivers consistent, high-quality workmanship for residential and commercial projects across Texas. We specialize in fiberglass insulation, spray foam applications, and energy-efficient building consultation, prioritizing customer satisfaction through honest service and fair pricing. As Owens Corning Certified Energy Experts, we offer limited lifetime warranties on qualifying products and workmanship, ensuring long-term value for our clients. Our San Antonio-based crews maintain open communication and punctuality, serving areas including Austin, Corpus Christi, Houston, and surrounding communities.Backed by over 15 years of industry experience, we focus on reducing energy consumption, improving indoor comfort, and providing tailored solutions for homeowners, builders, and commercial contractors. Our commitment to excellence is reflected in our track record of positive client testimonials and partnerships with major brands like Owens Corning, which recognize our adherence to rigorous installation standards. We guarantee satisfaction on every project, from attic insulation upgrades to large-scale commercial installations.
Services
Fiberglass Insulation
Spray Foam Insulation
Commercial Insulation
Home Insulation
Building Science Consultation
Attic Insulation
Crawl Space Insulation
Air Sealing Services
Energy Assessments
Tax Credit Assistance
Details
- Year established: 2007
Highlights and features
- We are Owens Corning Certified Energy Experts with access to premium products and warranties.
- Our installers complete projects on time with minimal disruption to daily operations.
- We offer lifetime warranties on qualifying insulation products and workmanship.
- Our team provides personalized consultations for energy-efficient building solutions.
- We guarantee satisfaction on all residential and commercial insulation projects.
Associations and certifications
- Owens Corning Certified Energy Expert
What people say
Best customer service
Quick response time
Highly recommend ST Insulation
Lowered electric bill significantly
Professionals who get it right
Services
Fiberglass Insulation
Our fiberglass insulation solutions enhance thermal efficiency and reduce noise transmission in residential and commercial buildings. Using Owens Corning PINK Next Gen and PROPINK L77 products, we deliver non-combustible, moisture-resistant insulation that maintains structural integrity over time. Ideal for attics, walls, and floors, this cost-effective option meets energy code requirements while improving indoor comfort.
Spray Foam Insulation
Spray foam insulation creates airtight barriers that prevent energy loss in extreme climates. We apply open-cell and closed-cell foams to seal gaps in attics, crawl spaces, and walls. This method improves HVAC efficiency, reduces utility costs by up to 50%, and strengthens structural durability against moisture and pests.
Commercial Insulation
We provide large-scale insulation services for commercial structures, including warehouses, offices, and military facilities. Our certified team meets strict deadlines while ensuring code compliance and energy savings. Services include fiberglass batts, spray foam, and SPF roofing solutions tailored to project specifications and budget requirements.
Energy Assessments
Our building science consultants conduct comprehensive energy assessments to identify insulation gaps and air leakage points. Using advanced diagnostic tools, we recommend customized solutions that optimize R-values, improve indoor air quality, and qualify for federal tax credits up to $1,200.
Air Sealing
Air sealing services eliminate energy-wasting gaps around windows, doors, and structural joints. Combined with proper insulation, this process reduces heating and cooling costs by 12-18% while creating a more comfortable, draft-free environment for residential and commercial spaces.
People
Ernie Slaughter
Owner
Ernie Slaughter founded South Texas Insulation in 2007, leveraging 15+ years of insulation industry expertise. He oversees project management and client relations, ensuring every installation meets Owens Corning's rigorous standards. Ernie prioritizes transparent communication and timely execution, earning consistent five-star reviews from satisfied customers across Texas.
Questions
What insulation services do you offer?
We provide fiberglass insulation, spray foam insulation, commercial insulation, air sealing, and energy assessments for residential and commercial clients in Texas.
Are you certified by Owens Corning?
Yes, we are Owens Corning Certified Energy Experts, qualified to offer lifetime warranties on qualifying products and workmanship.
How much can I save with new insulation?
Proper insulation can reduce energy bills by 12-50%, depending on existing conditions and chosen materials like spray foam or fiberglass.
Do you offer tax credits or rebates?
Yes, we help clients qualify for federal tax credits covering up to $1,200 of insulation and air sealing projects.
What areas do you service?
We serve San Antonio, Austin, Corpus Christi, Houston, and surrounding Texas communities for residential and commercial insulation needs.
How long does installation take?
Most residential projects complete in one day, while commercial installations vary based on project size and complexity.
