Lena RiveraKeeping a Texas home comfortable in summer can feel like a full-time job, especially if your roof lacks adequate thermal protection.
That’s why finding the best attic insulation in San Antonio is such a smart move. It helps lower high energy bills while keeping your living spaces consistently cool.
Improved insulation also helps prevent treated air from escaping, which makes your home more efficient. As a result, your HVAC system does not have to work as hard, reducing wear and tear over time.
To help you find a trusted professional, we talked to several homeowners and reached out to multiple attic insulation contractors in San Antonio. Here are the ones that stood out to us!
How much does attic insulation cost in San Antonio?
Professional attic insulation in San Antonio typically costs $1,500 to $4,600, depending on the materials and overall square footage.
| Attic Size | Estimated Cost Range | Cost Per Square Foot |
| Standard (1,500 sq. ft.) | $1,500 – $4,500 | $1.00 – $3.00 |
1. Attic Pro
Website: https://www.attic-pro.com/
Address: 1646 Vista Del Monte
Contact: 210 750-6966
Hours: Monday – Saturday: 9:00 AM – 5:00 PM
Attic Pro focuses exclusively on attic insulation and energy efficiency solutions for local homeowners. As a family-owned business, their goal is to help reduce monthly utility costs through targeted blown-in insulation and thorough air sealing.
We recently spoke with a property manager who hired them for a duplex. They were impressed by how clear and straightforward the technicians were throughout the process.
The team also knows how to work safely in tight, hard-to-reach ceiling spaces. They customize materials to each home’s structure for better protection against intense Texas heat.
Their focused expertise results in highly efficient installations for residential properties.
Just keep in mind that their highly specialized service model means you will need to hire separate contractors for general home improvements. They also do not offer broader services, such as HVAC repair or roofing.
Quick and transparent about pricing
Attic Pro Tx did an amazing job with our attic insulation and air duct installation. They were quick, transparent about pricing, and very professional throughout the entire process. Sonny and his team showed up on time, worked efficiently, and left everything clean. Highly recommend!
- A. Rod. | Google Review
They are quick, efficient, and professional
We had left over blow in insulation from before we purchased the house. I shopped around for a few quotes, I saw Attic Pro had good reviews online and was recommended on Reddit. They quickly came out and provided a quote well below the others. They quickly removed the old insulation and sanitizer the attic. I would recommend them as they are quick, efficient and professional.
- Francisco Cifuentes | Google Review
2. Geo-Insulation, LLC
Website: https://geo-insulation.com/
Address: 2766 Harney Path
Contact: 210 848-5658
Hours:
- Monday – Friday: 9:00 AM – 7:00 PM
- Saturday: 10:00 AM – 7:00 PM
Geo-Insulation focuses on spray foam and blown-in cellulose, positioning itself as a specialist in energy-efficient insulation. Their approach is centered on helping homeowners reduce their carbon footprint through customized solutions.
Before starting any project, their certified technicians take the time to explain the benefits of each material.
Many clients we spoke with really appreciated this, as it helped them be confident with their choice. This level of transparency also makes it easier to choose based on budget and home needs.
The team is also well-versed in local building codes and understands the region’s climate challenges. That’s why they can provide solutions that focus on long-term performance rather than quick fixes.
Just note that they specialize strictly in insulation. If you need services like roofing or general renovation, you will need to hire a separate contractor.
The service we received was exceptional
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
Thorough and professional
Tom and his team personally handled the work and even included a smoke detector and an upgraded attic light fixture at no extra charge. He was thorough, professional, and stands behind his work with a solid warranty. I’d absolutely recommend Geo Insulation for anyone with an upcoming project.
- Ana Gonzalez | Google Review
3. Attic World
Website: https://atticworldllc.com/
Address: 7755 Pipers Hill
Contact: 210 966-8373
Hours: Monday-Thursday, & Saturday: 10:00 AM – 6:00 PM
Attic World stands out by offering more than just insulation. In addition to blown-in materials, they handle wildlife removal, attic cleaning, and even gutter repairs.
Their broad service menu makes it easier to protect your insulation from pests and weather damage right from the start.
Plus, their team carefully inspects the attic, seals any gaps, and addresses potential health risks before installing new insulation. This extra step helps keep the space clean and safe.
They also provide free estimates and can often schedule same-day service, which is great if you need quick results.
That said, their hours are a bit limited since they close at 6 PM. They also don’t offer emergency services.
Their service range is pretty limited too, only covering areas within about 50 miles of the city.
Did an amazing job
I’m so grateful to have found Attic World LLC in San Antonio, Texas! Their team, led by Jim McDuffie, did an amazing job removing the raccoons from my attic and sealing all the entry points. They also added new insulation, which has made a huge difference in my home. I highly recommend Attic World for their professional and reliable service!
- Rachael Buckley | Google Review
I am very satisfied with the work performed
Initially I hired them to get a squirrel out of my attic because they were chewing up my a/c duct. But with my a/c bill going up I had them install a solar barrier and I can tell the difference. Overall I am very satisfied with the work performed.
- Scott Silva | Google Review
4. Green Energy of San Antonio
Website: https://www.greenenergyofsanantonio.com/
Address: 1150 N.W Loop 1604, Suite 500
Contact: 210 405-1796
Hours: Monday – Saturday: 9:00 AM–5:00 PM
Green Energy of San Antonio uses advanced radiant barrier technology that reflects up to 97% of heat away from your roof. As a family-owned business since 2009, they help homeowners cut energy costs with efficient, modern solutions.
I actually requested a quote from them last year, and their representative did a great job explaining available local rebate programs.
They also offer additional upgrades such as energy-efficient window replacements and improved ventilation. These enhancements help create a more complete thermal envelope, which reduces the workload on your air conditioning system.
During consultations, their team focuses on being transparent and avoiding high-pressure sales tactics.
Some past clients did mention occasional delays in communication after the installation was completed, though. You may need to follow up with their office if you have additional questions.
Even so, their installations remain highly effective for handling the intense South Texas heat.
Their honesty and helpful advice were greatly appreciated
I had Green Energy of San Antonio diagnose a cooling issue in my home. They confirmed my insulation was adequate and didn’t try to sell me anything unnecessary. They recommended I improve ventilation in my attic through my roofing company to not void the warranty and suggested I work with the builder to fix a problematic window instead of pushing new windows. Their honesty and helpful advice were greatly appreciated. Highly recommend!
- Zachary Brooks | Google Review
Very clear and I really appreciated their honesty
I had a few quotes for attic insulation and Green Energy was an easy choice. Their quote was very clear and I really appreciated their honesty. They purposely quoted just the service that would be most impactful and even told me to hold off on work I thought was need. Great company to work with.
- Josh W | Google Review
5. TX Builder
Website: https://txbuilderusa.com/
Address: 5810 Worth Parkway #4310
Contact: 210 761-4855
Hours:
- Monday – Thursday: 8:00 AM – 7:00 PM
- Friday: 8:00 AM – 5:00 PM
- Sunday: 11:00 AM to 5:00 PM
TX Builder takes a full-service approach, offering mold remediation, duct cleaning, and various insulation solutions.
Even more impressive, they have extensive construction experience. This helps them identify and fix structural issues before installing insulation materials.
They’re very thorough during insulations too. Their team creates a plan to improve airflow and insulation, leading to better indoor temperature control.
They also offer free consultations with photo reports, which makes it easier to understand what is going on in your home.
That said, some customers have mentioned minor scheduling issues and inconsistent coordination from the office side. We’d recommend double-checking your appointment to stay on schedule.
Still, their hands-on expertise delivers solid results, especially for larger upgrades.
The insulation came out great
I recently had the pleasure of hiring TX Builder to clean out my air ducts and replace insulation in my attic. The consultation was very thorough and the owner answered any questions I had. Tony was our tech and arrived promptly and did a wonderful job – the insulation came out great and my air ducts look like new! My family suffers allergies and it has been such a relief to be able to breathe clean air in our house again. Thank you, I highly recommend these guys!
- Kimberly | Google Review
Available to begin the work immediately
TX Builders (Tony & crew) were prompt in providing an estimate at a reasonable price. They were also available to begin the work immediately even with the holidays upon us. They were able to finish the job (ductwork & attic insulation) within two days.
- Ana Bernal | Google Review
