Best Spray Foam Insulation Services in South Congress
Stellrr Insulation & Spray Foam helps homeowners, builders, and commercial property managers in South Congress reduce energy bills, stabilize indoor temperatures, and protect their buildings from moisture and air leaks. We provide complete spray foam insulation services that are effective in Austin’s climate. Whether you’re retrofitting an older property in Travis Heights or building new in the SoCo residential blocks, our team delivers precise installation for long-lasting performance.
Taylor Morales2024-01-05Trustindex verifies that the original source of the review is Google. i called to get a quote to top off my attic insulation they call this putting lipstick on a pig! lol had them come out for a diagnostic and they uncovered the real deal about what was going on. i hired them and it took several weeks to get on the schedule to do the work they did a really good job. very happy Albian Barban2024-01-05Trustindex verifies that the original source of the review is Google. I like working with the Stellrr team on my crawlspace conversión. It was dirty and moldy. Now it is súper clean and I can store my stuff down there. A plus. Christian Rice2024-01-05Trustindex verifies that the original source of the review is Google. I would recommend Stellrr to anyone. They insulated my attic at a fair price and I know I can trust them. Angel and his team replaced the old fiberglass insulation in my attic with cellulose, air-sealed my attic, and insulated my catwalk. They were on-time, communicative, and did great work. I was impressed every step of the way. They also went above and beyond, adding extra insulation at no charge! Mr. Wayne followed up weeks later for quality control and added more insulation and air sealing that was even more than what we had contracted for. I can't recommend Stellrr enough! This isn't a paid promotion or anything, I just think more people should contract with Stellrr and want to let people know that my experience with them was phenomenal. I recommend them 100%. Amber Spring2024-01-05Trustindex verifies that the original source of the review is Google. From my first phone call with Jeremy, to my consult with Sheldon… and the install crew, I could not be more pleased with how respectful everyone was. They vacuumed out all the old insulation. We don’t know the house had rat problems because it had been burried. But I’m so glad to have that out of the house. And now our air is so much cleaner. They spray foamed the roof for me and it is just like a cozy blanket. RJD Studios2024-01-05Trustindex verifies that the original source of the review is Google. I had my insulation replaced by stellar and I have to say it was a way better experience than I expected! The staff was very well mannered and gave me all the answers to every one of my questions. My electric bill is lower and my life is much easier. Highly reccomend! Kristina Noble2024-01-05Trustindex verifies that the original source of the review is Google. My house had this really uncomfortable room that we just couldn't keep under control. We hired stellar to come out and do the Space Age Cleanse. The process took a little longer than the minimum expected time. But we are very happy with the results. My bills are way down a d the room finally stays the same temperature as the rest of the house. Couldn't be better. Zelma Iannalo2023-10-15Trustindex verifies that the original source of the review is Google. The team at Stellrr Insulation did an exceptional job with our attic insulation. Sheldon was incredibly helpful in explaining the process and the crew led by Robert was efficient and professional. We're noticing the difference already - the temperature is more consistent throughout the house, and our HVAC is running much better. James Dinwiddie2023-09-22Trustindex verifies that the original source of the review is Google. Shawn and his team have truly changed our lives. Their professional and efficient work in removing our old insulation and installing new spray foam insulation has resulted in a more comfortable home and a more efficient HVAC system. We are very satisfied with their services. Jacob Ballard2023-09-18Trustindex verifies that the original source of the review is Google. I had an issue with Stellrr where they missed a portion of my attic when insulating, however when it was caught they went above and beyond to ensure it was fixed properly and I wasn’t charged for the fix I appreciated the professionalism of them and their motivation to take care of a client.
Our Services
Residential Insulation
Open Cell Insulation
Closed Cell Insulation
Commercial building Insulation
Cellulose Insulation
Attic Insulation
Insulation Removal
Crawlspace Insulation
Wall Insulation
What Sets Stellrr Apart

Expert Installation
Spray foam installed by certified technicians.

Austin Expertise
Local knowledge of Austin building styles and weather patterns.

Thorough Evaluation
Detailed assessments before installation.

Premium Materials
Materials that meet or exceed industry standards.
Explore South Congress: Local Highlights

South Congress Avenue
A cultural and shopping hub known for boutique stores, live music, and great food. One of Austin’s most visited streets.

Big Stacy Park
A quiet neighborhood park with a spring-fed pool, walking trails, and playground. Great for families and morning workouts.

Continental Club
A legendary live music venue since 1955. It hosts rock, blues, and country acts in a vintage setting.

SoCo District Murals
Public art and iconic wall murals throughout South Congress that capture Austin’s creative spirit.

Hotel San José
A boutique hotel with unique architecture and outdoor courtyard events. A go-to spot for visitors and locals alike.

Music Lane Shopping Complex
A stylish mixed-use development with fashion, home decor, and dining options right off South Congress Ave.
Why Choose Stellrr Insulation in South Congress
We don’t just install insulation. We improve how buildings perform in Austin’s weather. Stellrr gives you control over your indoor environment, cuts utility costs, and reduces outside noise. Our work improves energy efficiency and adds comfort, whether you’re renovating a home near Stacy Park or insulating a business on South Congress Avenue.
We’re ready to answer your questions, provide quotes, and schedule on-site visits. Call (512) 710-2839 or fill out our form to get started.
Areas We Serve
Neighborhoods
South Congress Central Neighborhood, South Congress Historic District, Travis Heights-South Congress Boundary Area, South Congress Commercial/Residential Corridor, SoCo Residential Blocks, South Congress Artist Community, South Congress Urban Living Zones
Counties Served
Travis County
Zip Codes Covered
78704, 78745
Let’s Talk Insulation
Whether it’s your first home or a multi-unit project, we’re here to make insulation easy. Speak with the Stellrr team today at (512) 710-2839. Request a free assessment and find out what the right insulation can do for your comfort and costs.
Questions About Spray Foam in South Congress
How long does spray foam insulation last in Austin’s climate?
Spray foam insulation can last 20–30 years or longer. Its durability is ideal for South Congress homes and buildings that experience both high humidity and strong sunlight.
Is spray foam safe to use in older homes in South Congress?
Yes. Spray foam is safe when installed by professionals. It’s often used in Travis Heights and other historic areas to upgrade performance without damaging structure.
What’s the difference between open cell and closed cell foam?
Open cell foam is softer, expands more, and is used for interior applications. Closed cell is denser, water-resistant, and often used in exteriors or damp areas like crawl spaces.
Can you remove old insulation before installing spray foam?
Yes. We offer insulation removal services for fiberglass, cellulose, and other outdated materials before new spray foam is applied.
Do I need a permit to install insulation in South Congress?
In many cases, yes. Stellrr handles permitting for projects that require them. We follow Austin Energy guidelines and local code requirements.