Leading Spray Foam Insulation Contractor in New Braunfels, TX
Are you struggling to keep your New Braunfels property cool during the scorching Texas summers while watching your energy bills skyrocket? At Stellrr Insulation & Spray Foam, we specialize in high-performance insulation upgrades explicitly designed for the humid, subtropical climate of Comal County. We help homeowners and business managers transition from inefficient, drafty buildings to comfortable, energy-smart environments. Whether you are retrofitting a historic home near Gruene or constructing a new facility, our advanced air-sealing techniques ensure your HVAC system runs efficiently, prolonging its lifespan and enhancing indoor air quality.
Posted on luciaTrustindex verifies that the original source of the review is Google. Sterll did an amazing job cleaning out our attic. They removed all the old insulation and rodent waste thoroughly, then installed spray foam insulation that has completely transformed the space. Afterward, I sealed the attic, which will help lower our energy bills and keep the temperature stable. What impressed me most was how clean and non-toxic the process was, they left the air fresh and the entire area spotless. The team was professional, efficient, and detail-oriented from start to finish. Highly recommend Sterll for anyone looking to clean, sanitize, and insulate their attic properly!Posted on Erica IngierTrustindex verifies that the original source of the review is Google. Stellrr insulation is running a top notch business. We are very happy with the results of our project, most importantly, but our communications with Pickle and Wayne were timely, thorough, and overall great. Their timeline was also excellent, which isn’t always the case with home improvement projects. From the time they quoted us to the time getting the job done was speedy. We are happy with their work and appreciative. Erica I.Posted on Roland MerzTrustindex 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.Posted on John FarleyTrustindex 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!Posted on Ashley KolarTrustindex 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!Posted on Michael Cleveland OsborneTrustindex verifies that the original source of the review is Google. Very efficient, really friendly service, highly recommend all aroundPosted on Nathaniel GrangerTrustindex 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!Posted on Camella BridgesTrustindex 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!Posted on LailaTrustindex 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.Posted on Joshua MorrisTrustindex 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!
Mastering the Thermal Envelope in Central Texas
Effective insulation goes far beyond simply rolling out material in an attic; it is about building science and establishing a complete thermal barrier. In the New Braunfels area, where humidity and heat interact with your home’s structure, gaps in your insulation can lead to moisture intrusion, allergen buildup, and significant energy loss. By treating the “whole house” as a system, we implement solutions that seal air leaks and stabilize indoor temperatures. This holistic approach not only dramatically lowers utility consumption but also protects the structural integrity of your property against the rigors of the local climate.
Our Comprehensive Insulation 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
The Stellrr Advantage
Building Science Experts
We don’t just spray foam; we analyze airflow and thermodynamics to solve the root cause of discomfort.
Precision Application
Our certified installers use state-of-the-art equipment to ensure consistent coverage and maximum R-value.
Clean & Respectful Service
We treat your property with care, ensuring a spotless site cleanup after every project.
Long-Term Warranty Support
We stand behind our work, giving you peace of mind that your investment is protected for years.
Experience New Braunfels: Top City Attractions
Known as Texas’s oldest dance hall, this iconic venue in the Gruene Historic District offers live music and a glimpse into the late 19th century. It is a cultural staple where locals and tourists alike gather to dance and enjoy authentic Americana vibes.
Recognized globally, this massive waterpark utilizes the natural waters of the Comal River to power many of its rides. It is a summer essential for families, offering miles of tube chutes, uphill water coasters, and relaxing lazy rivers.
Spanning 51 acres along the Comal River, Landa Park is the heart of outdoor recreation in the city. Visitors can enjoy paddle boats, a miniature train, and ancient oak trees, making it a perfect spot for picnics and nature walks.
Located just on the outskirts, this is one of the largest commercial caverns in Texas. The subterranean tour reveals incredible limestone formations, while the surface offers adventure courses and gem mining for kids.
Famous for being one of the shortest navigable rivers in the world, the Comal is spring-fed and stays a refreshing 70-72 degrees year-round. It is the premier destination for “tubing,” a beloved local pastime for cooling off.
This interactive museum focuses on culture, health, and technology, providing a hands-on learning environment. It is a fantastic destination for families looking to engage their children in educational play within a creative setting.
Mini Case Study: The River Chase Retrofit
Challenge: A family in the River Chase community of New Braunfels reported that their upstairs bedrooms were 10 degrees hotter than the ground floor, forcing their AC unit to run continuously without reaching the set temperature.
Solution: Stellrr conducted a thermal audit and found that the existing fiberglass batting had settled, leaving significant air gaps. We performed a complete extraction of the old material and installed 6 inches of open-cell spray foam to the roof deck, sealing the attic completely.
Result: The attic temperature dropped by over 30 degrees immediately. The homeowners reported a balanced temperature across all floors and a 25% reduction in their energy bill during the first month of summer operation.
What your neighbors in New Braunfels, TX say about our Spray Foam Insulation services
Posted on luciaTrustindex verifies that the original source of the review is Google. Sterll did an amazing job cleaning out our attic. They removed all the old insulation and rodent waste thoroughly, then installed spray foam insulation that has completely transformed the space. Afterward, I sealed the attic, which will help lower our energy bills and keep the temperature stable. What impressed me most was how clean and non-toxic the process was, they left the air fresh and the entire area spotless. The team was professional, efficient, and detail-oriented from start to finish. Highly recommend Sterll for anyone looking to clean, sanitize, and insulate their attic properly!Posted on Erica IngierTrustindex verifies that the original source of the review is Google. Stellrr insulation is running a top notch business. We are very happy with the results of our project, most importantly, but our communications with Pickle and Wayne were timely, thorough, and overall great. Their timeline was also excellent, which isn’t always the case with home improvement projects. From the time they quoted us to the time getting the job done was speedy. We are happy with their work and appreciative. Erica I.Posted on Roland MerzTrustindex 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.Posted on John FarleyTrustindex 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!Posted on Ashley KolarTrustindex 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!Posted on Michael Cleveland OsborneTrustindex verifies that the original source of the review is Google. Very efficient, really friendly service, highly recommend all aroundPosted on Nathaniel GrangerTrustindex 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!Posted on Camella BridgesTrustindex 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!Posted on LailaTrustindex 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.Posted on Joshua MorrisTrustindex 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!
Why Choose Stellrr for Your Insulation Needs?
Choosing the right contractor is the difference between a quick fix and a permanent solution. At Stellrr Insulation & Spray Foam, we move beyond the “one-size-fits-all” mentality. We understand that a home near the Guadalupe River has different humidity challenges than a commercial warehouse in Schertz. Our team uses diagnostic approaches to identify where your building is failing you. We prioritize transparency, explaining exactly why we recommend a specific material, whether it’s closed-cell foam for rigidity or cellulose for budget-friendly efficiency. When you choose us, you choose a partner dedicated to reducing your carbon footprint and increasing your property value.
Service Area & Local Reach
Gruene, Clear Springs, River Chase, Manor Creek, Copper Ridge, Vintage Oaks, Oakwood Estates, South New Braunfels, Comal, Bulverde, Canyon Lake, Sattler, Startzville, Canyon City, Hunter, Seguin, Schertz, San Marcos, Live Oak, Kyle, Lockhart, Universal City.
Counties Served
Comal County, Guadalupe County, Hays County, Bexar County, Caldwell County.
Ready to Upgrade Your Comfort?
Don’t let another season pass with high energy bills and an uncomfortable home. Take control of your indoor climate today. Contact Stellrr Insulation & Spray Foam to schedule your comprehensive site assessment.
Phone: (512) 710-2839 Email: info@stellrr.com
Common Questions About Insulation & Efficiency
What is the difference between open-cell and closed-cell spray foam?
Open-cell foam is lighter, less expensive, and excellent for soundproofing and interior insulation, as it allows for some moisture permeability. Closed-cell foam is much denser, acts as a complete vapor barrier, provides structural rigidity, and offers a higher R-value per inch, making it ideal for exterior walls and humid areas.
Will spray foam insulation really lower my utility bills in New Braunfels?
Yes, significantly. Traditional insulation often leaves gaps that allow air leakage, forcing your HVAC system to work harder. Spray foam creates an air-tight seal that prevents conditioned air from escaping and hot Texas air from entering, typically reducing energy consumption by 20% to 50%.
Is spray foam insulation safe for my family and pets?
When installed by certified professionals like the Stellrr team, spray foam is perfectly safe. Once the foam has cured (usually within 24 to 48 hours), it becomes inert and no longer off-gases. We ensure proper ventilation during the installation process to maintain safety standards.
Can you remove old, damaged insulation before installing new foam?
Absolutely. In fact, removing old insulation is often necessary, especially if rodents, water damage, or mold have compromised it. We provide full-service removal and disposal to ensure the substrate is clean and ready for a high-performance application.
How does insulation help with humidity control in Central Texas?
In humid climates, moisture enters homes through air leaks. By creating an air barrier with spray foam, we stop the infiltration of humid outdoor air. This allows your AC unit to dehumidify the indoor air more efficiently, reducing the risk of mold growth and increasing personal comfort.