CityvettedInsulation can significantly impact your home's energy efficiency. Find the right contractor in San Antonio to keep your space comfortable.
Insulation plays a critical role in maintaining energy efficiency in your San Antonio home, especially with the city's fluctuating temperatures. Choosing the right insulation contractor can lead to significant savings on energy bills and a more comfortable living environment.
In this ranking, we evaluated 10 insulation contractors based on their customer reviews and overall ratings. This list reflects the most trusted options available, highlighting the gap between budget choices and those with proven track records.
Cityvetted analysis of public Google review data, updated June 13, 2026.
How much does insulation contractors cost in San Antonio? See the price breakdown →
With a perfect rating of 5 stars from 419 reviews, Geo-Insulation, LLC is highly praised for its professionalism and quality of work.
Read full reviewInsulation Pros SATX also holds a 5-star rating, with 71 reviews emphasizing their competitive pricing and effective insulation services.
Read full reviewPrime Spray Foam Insulation has an impressive rating of 4.9 stars from 40 reviews.
Read full review| Business | Vetted Score | Google rating | Reviews | Best for | |
|---|---|---|---|---|---|
| 1 |  | 96Score | 419 | Homeowners seeking reliable insulation solutions | |
| 2 |  | 95Score | 71 | Budget-conscious homeowners | |
| 3 |  | 94Score | 40 | Upgrading to spray foam insulation | |
| 4 | 88Score | 56 | Various insulation needs | ||
| 5 | 85Score | 18 | First-time insulation installations | ||
| 6 | 83Score | 95 | Environmentally conscious homeowners | ||
| 7 | 80Score | 10 | Quick insulation needs | ||
| 8 | 79Score | 4 | Niche insulation projects | ||
| 9 | 78Score | 3 | Homeowners considering spray foam insulation | ||
| 10 | 78Score | 1 | Attic insulation projects |
To create this ranking, we analyzed customer feedback, focusing on star ratings and the number of reviews for each contractor. We ensured that no business paid for placement, allowing us to present an unbiased view of the top providers.
This list is updated monthly to reflect the latest customer experiences and any changes in ratings. We aim to provide you with the most accurate and current information when selecting an insulation contractor in San Antonio.
Sentiment is measured by AI analysis of review text, recency-weighted, with verified-pattern checks to discount suspicious review bursts.
With a perfect rating of 5 stars from 419 reviews, Geo-Insulation, LLC is highly praised for its professionalism and quality of work. Customers frequently highlight their efficient service and knowledgeable staff. They are best for homeowners looking for reliable insulation solutions. However, their availability can be limited due to high demand.
Insulation Pros SATX also holds a 5-star rating, with 71 reviews emphasizing their competitive pricing and effective insulation services. Customers appreciate their responsiveness and thorough approach to insulation projects. They are ideal for budget-conscious homeowners. However, their smaller review base means they are still building a reputation. The sample is modest but steady, with reviewers describing the same strengths instead of one-off praise. Most of what reviewers hire it for is budget-conscious homeowners. It serves San Antonio, TX, with $1,200 to $2,500 pricing, and the honest trade-offs are smaller review base.
Prime Spray Foam Insulation has an impressive rating of 4.9 stars from 40 reviews. Customers praise their expertise in spray foam solutions and the noticeable energy savings after installation. They are best for those looking to upgrade to spray foam insulation. However, their limited review count suggests they are still establishing their client base.
IFOAM Insulation has a strong 4.8-star rating from 56 reviews. Many customers commend their knowledgeable team and attention to detail. They are a solid choice for various insulation needs. However, some customers noted scheduling issues that could affect service speed. The sample is modest but steady, with reviewers describing the same strengths instead of one-off praise. Most of what reviewers hire it for is various insulation needs. It serves San Antonio, TX, with $1,200 to $3,500 pricing, and the honest trade-offs are potential scheduling issues.
Insulation-X holds a 5-star rating but with just 18 reviews. Customers appreciate their friendly service and quick response times. They are best for smaller projects or first-time insulation installations. However, the thin review base raises some concerns about their long-term reliability. The review base is still thin, so we read the rating as promising rather than proven and weighted it accordingly. Most of what reviewers hire it for is first-time insulation installations. It serves San Antonio, TX, with $1,000 to $3,000 pricing, and the honest trade-offs are thin review base.
Green Energy of San Antonio has a 4.5-star rating from 95 reviews. Customers often praise their eco-friendly approach and effective insulation solutions. They are a good fit for environmentally conscious homeowners. However, some reviews mention higher prices compared to competitors. That is a substantial body of feedback for a local operator, enough to trust the rating rather than credit a lucky streak. Most of what reviewers hire it for is environmentally conscious homeowners. It serves San Antonio, TX, with $1,500 to $3,200 pricing, and the honest trade-offs are higher prices.
With a 5-star rating from just 10 reviews, South Texas Insulation is recognized for their quick and efficient service. Customers appreciate their straightforward pricing and friendly staff. They are best for quick insulation needs. However, their low review count means they are less established. The review base is still thin, so we read the rating as promising rather than proven and weighted it accordingly. Most of what reviewers hire it for is quick insulation needs. It serves San Antonio, TX, with $1,000 to $2,500 pricing, and the honest trade-offs are low review count.
Insulation Masters Of San Antonio has a perfect 5-star rating from 4 reviews. Customers commend their personalized service and attention to detail. They are suitable for niche insulation projects. However, the extremely limited review base raises questions about their consistency. The review base is still thin, so we read the rating as promising rather than proven and weighted it accordingly. Most of what reviewers hire it for is niche insulation projects. It serves San Antonio, TX, with $1,200 to $3,000 pricing, and the honest trade-offs are extremely limited review base.
San Antonio Spray Foam Insulation holds a 5-star rating from 3 reviews. Customers praise their effective spray foam solutions and friendly service. They are best for homeowners considering spray foam insulation. However, the very small review count means they are still proving themselves in the market. The review base is still thin, so we read the rating as promising rather than proven and weighted it accordingly. Most of what reviewers hire it for is homeowners considering spray foam insulation. It serves San Antonio, TX, with $1,800 to $4,000 pricing, and the honest trade-offs are very small review count.
San Antonio Attic Insulation has a 5-star rating but only one review. The customer praised their prompt service and quality work. They may be a good option for attic insulation projects. However, the lack of reviews makes it hard to gauge their overall reliability. The review base is still thin, so we read the rating as promising rather than proven and weighted it accordingly. Most of what reviewers hire it for is attic insulation projects. It serves San Antonio, TX, with $1,200 to $2,800 pricing, and the honest trade-offs are lack of reviews.
Selecting the right insulation contractor involves balancing price and reputation. Here are key factors to consider:
Prioritize contractors with a strong review history. Look for those with at least 50 reviews to gauge reliability.
Compare estimates from different contractors to find the best value. Ensure you understand what each quote includes.
Some contractors may specialize in certain insulation types. Choose one that aligns with your specific needs.
The cost of insulation can vary based on material and installation complexity. Here's what you can expect:
Prices for insulation installation in San Antonio typically range from $1,500 to $3,500, depending on the size of your home and the type of insulation used.
Look for contractors with strong ratings and a good number of reviews to ensure reliability. Pay attention to feedback about their customer service and the quality of their work.
We re-run the full analysis monthly with fresh review data. Last updated June 13, 2026.
Geo-Insulation, LLC is the best overall choice with a perfect 5-star rating from 419 reviews. For value, Insulation Pros SATX offers excellent service with a strong rating of 5 stars from 71 reviews. If you're looking to splurge, consider Prime Spray Foam Insulation San Antonio, which has a solid 4.9 rating from 40 reviews.
