On Time. Done Right. Left Clean.
Our Story
Key Insulation emerged from a groundbreaking initiative in San Antonio, Texas, in 2000. Driven by the desire to optimize energy efficiency in homes, we pioneered the use of cellulose insulation. Over the past two decades, we've evolved into a leading provider of high-performance insulation solutions, proudly serving central and south Texas.
Our Values
At Key Insulation, we prioritize:
- High Performance Solutions: We prioritize efficiency, effectiveness, and sustainable materials to achieve optimal energy savings.
- Customer Satisfaction: Our dedicated team focuses on understanding your unique needs and delivering tailored solutions that exceed expectations.
- Integrity and Transparency: We value clear communication, ethical practices, and accountability in every aspect of our work.
Our Expertise
We offer a comprehensive range of insulation materials and services, including:
- Cellulose Insulation: Blown in or spray-applied cellulose fibers deliver exceptional thermal insulation and air sealing.
- Spray Polyurethane Foam: Provides excellent insulation and air sealing, ideal for attics, walls, and crawl spaces.
- Foam Insulation: Closed-cell and open-cell foam insulation offers exceptional thermal performance and outstanding structural integrity.
- Closet & Garage Systems: Customized storage solutions for maximizing space and optimizing organization.
- Mirror Trim: Stylish and durable trim enhances the aesthetic appeal of any space.
Our Commitment
At Key Insulation, we are committed to:
- Delivering exceptional customer service and communication throughout the process.
- Utilizing high-quality materials and adhering to industry best practices.
- Providing on-time completion and meticulous attention to detail.
- Contributing to sustainable building practices through energy-efficient solutions.
Join Us
We are passionate about empowering builders, homeowners, and communities to achieve optimal comfort and energy efficiency. If you share our values and are driven by a desire to make a difference in the built environment, join us!
Company Reputation and Customer Service
The reviews highlight a mixed bag of opinions about the company's reputation and customer service. On one hand, some reviewers praised the company's professionalism, kindness, and helpfulness. On the other hand, some reviewers reported rude behavior, ignored calls, and poor business practices.
Positive Experiences
Some reviewers had positive interactions with the company's employees, such as Josh Werner, who helped a lost driver with her navigation system, and Abraham, who provided honest and fair estimates for insulation work. These experiences showcase the company's potential for excellent customer service.
Negative Experiences
However, some reviewers reported negative experiences, including a driver who was rude and lifted his middle finger at another driver, and a homeowner who was ignored by the company despite repeated calls and emails about defects in their work.
Organizational Issues
One reviewer criticized the company's organization, leadership, and integrity, stating that they promise the world to new clients but fail to deliver. This reviewer suggested looking elsewhere for insulation contractors in San Antonio or Austin.

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