Jaime AlfaroFinding the best spray foam insulation in San Antonio can make a noticeable difference in your monthly utility bills while keeping your home comfortable through the intense Texas heat.
Homeowners upgrading older properties and builders managing new construction projects both rely on the right installer to ensure a proper, long-lasting thermal barrier.
To help you make a confident, energy-smart investment, we’ve reviewed local providers known for quality workmanship, reliability, and consistent results. Here are the ones that stood out the most!
How much does spray foam insulation cost in San Antonio?
On average, spray foam insulation in San Antonio costs around $2.00 per square foot, with total project costs varying by foam type and property size.
| Project / Foam Type | Estimated Cost |
| Open-cell foam | $1.50 – $3.00 per sq. ft. |
| Closed-cell foam | $1.75 – $4.50 per sq. ft. |
| Local average | $1.24 – $2.39 per sq. ft. |
| Mid-size project | $2,000 – $2,500+ |
| Large homes (2,000 sq. ft. areas) | $3,000 – $7,000+ |
1. Prime Spray Foam Insulation San Antonio
Website: https://sanantoniotxsprayfoaminsulation.com/
Address: 327 Bank St
Contact: (210) 940-2447
Hours: Monday – Saturday 7 AM–7 PM
Lowering your cooling costs during a blistering Texas summer requires a tight air seal, and that is exactly what Prime Spray Foam Insulation delivers.
Their advanced spray foam technology creates a superior barrier against persistent heat transfer. This drastically improves indoor comfort and your heating and cooling efficiency.
What’s even better is that they tailor their residential and commercial applications to fit highly specific property layouts and financial plans.
We spoke with a contractor who recently hired them for a mid-sized residential build, and he noted the team’s impressive structural protection against unwanted moisture.
While their professional-grade materials guarantee a notably long-lasting result, getting an initial response to inquiries can sometimes take a bit longer.
Still, their wide service range and precise installation methods make them a highly dependable choice for substantial property upgrades.
100 percent satisfied with their work
They do excellent work and are very professional, if your looking for a spray foam insulation go to them, I was 100 percent satisfied with their work
Willie Whitley, Google Review
responded back pretty fast
I personally like this company. They respond in a timely manner and their customer service is amazing and outstanding. So, i gave them 5 *’s because even tho I responded to a job ad late in the night; they still responded back pretty fast. 🙂
Rosa Sanchez, Google Review
2. San Antonio Spray Foam Insulation
Website: https://sanantoniosprayfoaminsulation.com/index.html
Address: 219 Barrera Street
Contact: (817) 873-6142
Hours: Monday – Friday 9:00 AM – 5:00 PM, Saturday 9:00 AM – 1:00 PM
Keeping utility bills manageable is a top priority for most homeowners, so finding a contractor who genuinely maximizes interior air sealing is vital.
San Antonio Spray Foam Insulation focuses on high-performance spray foam with superior insulation, helping customers reduce their overall energy costs by up to a quarter.
What’s even more impressive is their modern installations cure quickly. This means major residential upgrades often finish within a single working day.
Their installed materials also act as a robust water barrier to prevent dangerous condensation and strengthen your building against severe local weather.
However, their service scope is somewhat narrow, focusing heavily on crawl space and standard attic insulation rather than offering a wide range of alternative methods.
But if your primary goal is securing a high-thermal-resistance barrier quickly, their focused expertise and swift turnaround times hit the mark perfectly for any standard home project.
Still working great!
The best company I’ve come into contact with! Spray foam is worth the price and helped with the weird breezes I kept having inside my home. I ordered the long term installation. It’s been 6 months and it’s still working great! Thank you so much Premier Spray Foam. My house is prepared for our new arrival (our beautiful baby girl).
AuJanai Shepard, Google Review
Will definitely use their services again
Great experience with Premier Spray Foam Co.! Their website is easy to navigate, and I loved that they offer services in San Antonio, Austin, and surrounding areas. The team was professional, and their spray foam insulation has made a huge difference in my home’s energy efficiency. Will definitely use their services again in the future! ps: Their website is also mobile-friendly, which is a plus!
Vivian A, Google Review
3. Geo-Insulation, LLC
Website: https://geo-insulation.com
Address: 2766 Harney Path, Fort Sam Houston
Contact: (210) 848-5658
Hours: Monday – Friday 9:00 AM – 7:00 PM, Saturday 10:00 AM – 7:00 PM
Trusting someone to permanently alter your home’s internal structure requires a demonstrably solid track record. That’s why Geo-Insulation, LLC is one of the most trusted contractors in the area.
This veteran-owned outfit brings extensive, proven experience to the table. They have successfully completed over 3,500 distinct residential projects across the region.
They routinely use an incredibly structured workflow that moves from a detailed initial consultation through to a strict final quality inspection.
When I needed actionable advice on blocking out the intense afternoon heat in my own workspace, I found their tailored recommendations extremely helpful and highly professional.
Beyond their core foam applications, they supply environmentally safe materials and offer valuable transferable warranties.
That said, you might experience occasional frustrating delays when calling their main office during peak construction seasons.
Still, their deep community roots and a reliable hands-on approach make them a fantastic partner for securing long-term indoor comfort.
Staff is courteous and professional!
Tom is extremely knowledge and takes the extra steps to ensure the right solution for your home. I talked to 3 other companies who were all just trying to sell me their product (spray foam insulation). Tom made sure to have an outside this party inspect my home to ensure his product was the right thing for our home. His staff is courteous and professional! Highly recommend.
Mellissa Toler, Google Review
On time, on point, and the entire process was very quiet
The service we received was exceptional. Tom guided us through every part of the insulation process and answered every question we had. He had a positive attitude even though he had to go into a sweltering attic. He was on time, on point, and the entire process was very quiet. I was able to work in the next room without hearing much of anything. He cleaned up afterwards and helped us get a rebate from CPS. Highly recommend this company.
Bumbling Monkey Productions, Google Review
4. Koala Insulation of North San Antonio
Website: https://koalainsulation.com/north-san-antonio
Areas Served: North San Antonio
Contact: (210) 904-2371
Hours: Monday – Friday 8 AM–5 PM
Upgrading a home’s insulation is often one of the most effective ways to boost energy efficiency and improve overall property value. Koala Insulation specializes in high-performance thermal barrier solutions.
They often highlight potential energy savings of up to 30% on monthly utility bills when the system is properly installed.
Because they combine local ownership with the resources of a national brand, the installation process tends to feel more organized and streamlined than smaller standalone providers.
What stands out is their approach to each property as a unique project rather than applying a one-size-fits-all method. Their crews assess the home individually and may include upgrades such as air sealing or solar attic fans.
The main limitation comes down to warranty terms. Their lifetime coverage is not transferable and requires paid annual inspections to remain valid, which is something to factor in if you are considering long-term flexibility or resale value.
Very attentive
Great company to work with. They were very comparably priced against other companies, but what led me to using them was their great reviews on Google. Andrew was very attentive and came out to measure the project ahead of install date and answered any and all of our questions. The crew that came out to spray foam, and blow in the insulation was professional and very speedy. I would highly recommend this company to my family and friends. A+ job!
Matt Schipper, Google Review
Did a great job cleaning up any and all mess when they left
Hired Koala to install spray foam insulation in my attic. The team was professional, completed the work within the specified time we agreed on, and did a great job cleaning up any and all mess when they left. Highly recommended.
Joseph Osmany, Google Review
5. SATX Spray Foam Insulation
Website: https://satxinsulation.com/
Areas Served: San Antonio, TX
Contact: (210) 791-7742
Hours: Monday – Saturday 8 AM – 6 PM
Navigating local building codes and dealing with extreme weather conditions requires a contractor who really understands the region. SATX Spray Foam Insulation leans heavily on that kind of on-the-ground expertise.
They deliver tailored insulation and structural solutions for both residential and commercial properties.
Their work focuses on high-performance internal barriers that seal even small gaps, noticeably improving both ambient temperature control and sensitive indoor air quality.
One thing clients often appreciate is the flexibility of their pricing structure. By offering both open-cell and closed-cell options, they make it easier to match different performance needs with different budgets.
That said, some large-scale projects occasionally experience unexpected scheduling delays and mildly frustrating missed appointments after the initial site inspection.
When everything stays on track, their materials and installation quality are generally considered well-suited for long-term protection in harsher Texas conditions.
Finishes before my projected time frame
Hello I ended up using SaTX Spray Foam insulation on my new build construction site and Joe and his crew were awesome,very professional, they went above and beyond and finishes before my projected time frame. I’ll be definitely using them again and I highly recommend that you use them for your upcoming and or future projects.
Dan Valero, Google Review
Done quick without sacrificing quality
SATX Spray Foam Insulation was very professional as to advise me what was really necessary for my project. They showed up and got the job done quick without sacrificing quality. Strongly recommend! Their cost has already paid for itself with energy savings! GET SPRAY FOAM FOR YOUR HOME!
Jose Martinez, Google Review
