Best Insulation Services in Johnson City, TX
Stellrr Insulation & Spray Foam delivers proven insulation solutions for homeowners, builders, and commercial property owners in Johnson City, TX. Whether you’re upgrading your attic, sealing crawl spaces, or insulating new construction, we use open and closed cell spray foam and cellulose to help reduce energy loss, improve comfort, and keep moisture out. Call (512) 710-2839 today to schedule your on-site evaluation.
Roland Merz2025-08-06Trustindex verifies that the original source of the review is Google. I want to thank Wayne and Angel for their quick response in helping us out. We were doing a construction project on our student center in San Marcos Tx. and found out that we needed to have a dumpster on site before we could proceed. I made a call to Wayne with dumpstersaurus dumpsters and explained my situation. He was quick to respond and had me a dumpster at the construction site the same day saving us from having the project shut down. Not only did he get it there the same day but the price was very fair and service was very friendly. In today’s business world it was very refreshing to have a company that was trustworthy, quick to respond with same day friendly service, and a very fair price, If you are needing a dumpster I highly recommend dumptersarus dumpsters. Thank you dumpstersaurs dumpsters. Roland M. John Farley2025-07-24Trustindex verifies that the original source of the review is Google. Pickle and the entire team did an amazing job from start to finish. From bidding to implementation, they really did the best job. Today our house is cooler than ever! Thanks Stellr! Ashley Kolar2025-07-02Trustindex verifies that the original source of the review is Google. Stellr Insulation was fast and efficient. We needed to have a job done quickly and they were very accommodating and even were able to move our appointment up a day. We especially appreciated Pickle as he always kept us informed throughout the process! 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.
Our Services
Residential Insulation
Open Cell Insulation
Closed Cell Insulation
Commercial building Insulation
Cellulose Insulation
Attic Insulation
Insulation Removal
Crawlspace Insulation
Wall Insulation
Commercial Spray Foam Insulation
Residential Spray Foam Insulation
Why Stellrr?

Trusted Local Professionals
Locally trusted insulation experts serving Blanco County.

High-Quality Application
Precision installation using industry-standard equipment.

Honest & Clear Estimates
Free consultation and transparent pricing.

Quick & Hassle-Free
Fast service with minimal disruption.

Johnson City Points of Interest
Explore the boyhood home and ranch of the 36th U.S. President, located just minutes from town.
A top destination for hiking, swimming, and camping along the scenic Pedernales River.
An interactive science museum housed in a restored 1880s mill, perfect for families and school groups.
Enjoy tastings and tours at this local winery known for Italian-style wines and Texas-grown grapes.
A drive-through wildlife experience featuring over 500 animals across 137 acres.
This self-guided event showcases local artists, galleries, and studios throughout downtown.
Why Choose Stellrr in Johnson City?
Choosing Stellrr means getting a licensed, experienced team committed to performance and longevity. We know the building codes, climate, and construction styles common to the Hill Country—and we install insulation that works for this region. Whether it’s new build spray foam or removing old batts, we’re ready to help. Submit the form or call (512) 710-2839 to get started.

Serving Areas
Johnson City (Central), 464 Ranch, Post Oak
Counties Served
Blanco County
Zip Codes Served
78636
Ready to Insulate Your Home or Business?
Let’s talk about your goals for comfort, air quality, or energy use. Contact Stellrr Insulation & Spray Foam today for an estimate.
Common Questions About Insulation in Johnson City
How much can I save on energy costs with new insulation?
Homeowners in Johnson City typically reduce their energy bills after proper insulation is installed, depending on the home’s age and structure.
What type of insulation is best for hot Texas summers?
Closed cell spray foam performs well in high heat by creating a strong air and moisture barrier. It helps maintain cooler indoor temperatures.
Can you remove old insulation before installing new materials?
Yes. We provide safe and efficient insulation removal before installing spray foam or cellulose, especially when old materials are contaminated or underperforming.
How long does spray foam insulation last?
Spray foam, when professionally installed, can last over 30 years without degrading or settling.
Is your insulation work code-compliant in Blanco County?
Yes. Our team stays current with local building codes and ensures all materials and applications meet or exceed county requirements.