Top Spray Foam Insulation Company in Blanco County, TX
Homeowners, builders, and commercial property owners in Blanco County choose Stellrr Insulation & Spray Foam for proven solutions that reduce energy bills and improve indoor comfort. Our spray foam insulation services are engineered for long-term efficiency and tailored to the Hill Country climate. Whether you’re building new, upgrading old insulation, or dealing with crawl space moisture, our team is ready to handle it.
Reach out today at (512) 710-2839 for a quote.
Michael Cleveland Osborne2025-06-20Trustindex verifies that the original source of the review is Google. Very efficient, really friendly service, highly recommend all around Nathaniel Granger2025-06-12Trustindex verifies that the original source of the review is Google. Choosing this company for our attic insulation was a great decision. They got the job done quickly and efficiently, and their team was super organized and professional. Everyone was courteous, and they left the space spotless when they finished. We're really happy with the results, our home feels more comfortable and energy-efficient already. Highly recommend them to anyone looking for quality insulation work! Camella Bridges2025-04-27Trustindex verifies that the original source of the review is Google. I had a great experience with Stellrr because the team is awesome. Pickle was so helpful and nice to work with. Frank and Jorge did the insulation work and it went super smoothly. The owner, Wayne, is awesome too - thanks for your extra help, Wayne! Laila2025-04-08Trustindex verifies that the original source of the review is Google. This is an amazing company! I highly recommend. Stellr has been great to work with. Everyone we were in contact with has been super friendly, polite, and professional. They take the time to explain all of the options for your attic and pricing is straightforward. Sheldon worked with us and he was always so helpful and professional. The two gentleman that came to do the insulation were very hardworking, courteous, and finished ahead of schedule. One of the men even helped bring in a heavy delivery for me- even though he had a huge day of work ahead for him. (I forgot his name, but Stellr knows- because I let them know how impressed I was with his help). The owner Wayne and his wife are wonderful to work with and made sure everything went smoothly. Give these guys a call. Truly excellent company. Joshua Morris2024-12-28Trustindex verifies that the original source of the review is Google. I told Stellrr that I would post a review when I had data to back it up. 18 months later, I do: In summer of 2024, we never turned off our A/C. And we saved $1160.71 (58%) vs 2023. This is a likely underestimate of annual savings, since Stellrr installed the foam in May of 2023. I've uploaded a timeline of our gas and electricity bills as we've made multiple improvements--not just spray foam. The gap between what we pay with these improvements and what we would've paid without them will grow bigger forever: energy will never get cheaper. So, here's my empirical take mixed with a bit of common sense: Stellrr's foam insulation provides good value, but without it, other energy-saving improvements will provide half the value they could. It's a foundational improvement--something you do *first*. It's what a nerd's nerd would call "a force multiplier," meaning it makes other improvements vastly more effective by being there. And so you should get it early in your "healthy and efficient home" journey. Unpacking that a bit: from a straight-up balance sheet, we will not ROI on Stellrr, solar, HVAC, electric appliances, and the other improvements we've made. But not breathing all that particulate matter from the nearby interstate? All the gas stove fumes we won't be inhaling? Hell, it's not unlikely we ROI on not having to pay for extended medical care in 30 years. So, if you're into a better quality of life that--bare minimum--mostly pays for itself, I'd recommend doing things In this order: 1. FIRST: Update your ducting, minimally, and your ventilation fans. My only regret--these are hard to do with foam there. 2. Get Stellrr's spray foam. They'll do the best job. 3. Look into a mid-high efficiency heat pump. ($2k tax credit, at least!) Spring a bit extra for an energy-recovery ventilator, installed professionally. Get a UV bulb for that alpine air feeling. 4. Consider solar (30% tax credit til like 2033!)l; also, batteries. 5. If you got those batteries, enroll in Austin Energy's Time of Use program so that you can coast on battery power when electricity is expensive (3-7PM). We do just fine on 20kWh. Bonus: some outage protection! I wasn't the easiest customer--I had a point or two of frustration (communications) with the company during the install. Stellrr sells their product hard, but... like all things ahead of their time, they have to make a complex case that won't appeal to everyone because the value of having an airtight, well-insulated home simply isn't obvious to all. I'm glad I listened--they were right! 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!
Our Services
Residential Insulation
Open Cell Insulation
Closed Cell Insulation
Commercial building Insulation
Cellulose Insulation
Insulation Removal
Crawlspace Insulation
Wall Insulation
Why Stellrr Stands Out

Central Texas Expertise
Local knowledge to handle unique climate challenges.

Certified Professionals
Fully licensed and insured spray foam contractors.

Proven Trust
Trusted by hundreds of homeowners and builders in Blanco County.

Transparent Quotes
Upfront pricing with detailed, no-surprise estimates.
Things to See Around Blanco County
A scenic riverside park perfect for swimming, fishing, and family picnics just minutes from town.
Locally known for craft beer and live music events one of Texas’ original microbreweries.
A peaceful spot with walking trails and gardens right in the heart of Blanco.
A historic structure featured in several films now open to the public for tours and events.
Held each summer, showcasing the local lavender farms and handmade goods from Hill Country artisans.
Dating back to 1870, this is one of the oldest dance halls in Texas with live country music shows.
Why Call Stellrr Today?
Your home or business deserves insulation that actually performs. Stellrr Insulation & Spray Foam has the experience, materials, and equipment to do the job right the first time. From attics to commercial buildings, we offer timely service and measurable results. Call now or fill out the quick form to get your insulation quote.
Call (512) 710-2839 or complete the form to schedule service.
Serving Areas
Austin, Bee Cave, Sunset Valley, Rollingwood, West Lake Hills, Barton Creek, Dripping Springs, Manchaca, San Leanna, Cedar Valley, Shady Hollow, Tanglewood Forest, Lost Creek, Ford Oaks, Vinson, Bear Creek, Pleasant Hill, Kincheonville, Williamson, Barton Creek West, East Oak Hill, West Oak Hill, Oak Hill Heights, Legend Oaks, Woods of Legend Oaks, Convict Hill, Covered Bridge, Lantana, Deer Park, Village at Western Oaks, Westcreek, New Braunfels, Horseshoe Bay, Taylor, Blanco, Lago Vista, Serenada, Johnson City, Lockhart, San Marcos, Pflugerville, Leander, Cedar Park, Round Rock, Anderson Mill, Driftwood
Counties Served
Travis County, Hays County, Blanco County, Williamson County, Comal County, Burnet County, Caldwell County, Bastrop County
Zip Codes Served
78704, 78749, 78735, 78745, 78738, 78746, 78620, 78652, 78737, 78748, 78747, 78657, 78130, 78132, 76574, 76577, 78606, 78645, 78628, 78636, 78644, 78666, 78667, 78660, 78664, 78641, 78613, 78750, 78619
Ready to Upgrade Your Insulation?
Get a fast quote and professional advice. Call Stellrr Insulation & Spray Foam at (512) 710-2839 or fill out our contact form. We’re ready to help improve your building’s comfort, efficiency, and value.
Answers to Real Questions About Spray Foam in Blanco County
How long does spray foam insulation last?
Spray foam insulation can last more than 30 years when properly installed and maintained. It doesn’t sag or settle over time like traditional insulation.
Can you remove old insulation before adding spray foam?
Yes, we offer full insulation removal services to clean out old, damaged, or pest-infested insulation before applying new spray foam.
What’s the difference between open and closed cell spray foam?
Open cell foam is softer and better for interior sound control, while closed cell foam is denser, offers higher insulation values, and acts as a vapor barrier.
Is spray foam insulation safe for homes with pets or children?
Once cured, spray foam insulation is safe and inert. We recommend staying out of the space for a short curing period after installation.
Do you offer free estimates for Blanco County residents?
Yes. We provide no-obligation estimates to homeowners and business owners in Blanco County and the surrounding Hill Country region.