The .17 U-Value Energy Glass Block from Seves Glass Block™ delivers more than just comfort—it provides long-term energy savings and smarter construction. Offered exclusively through Glass Block Warehouse, this high-performance glass block combines exceptional insulation with the timeless appeal of classic glass block design.
What Makes the .17 U-Value Stand Out?
The U-Value is a critical measurement used in the building industry to evaluate how well a material insulates. A lower U-Value means better insulation, which results in reduced energy consumption and improved indoor temperature control.
With a U-Value of just .17, this energy glass block offers outstanding thermal performance, surpassing many traditional window solutions. It significantly reduces heat loss during the winter months while also limiting unwanted heat gain during the summer. This dual action helps create more comfortable interiors year-round—whether you’re in a hot southern climate or a cold northern one.
By integrating advanced insulating technology into a stylish, durable form, the .17 U-Value block helps cut down on heating and cooling costs—without sacrificing aesthetics.
Ideal for Energy-Conscious Projects
Whether you’re building a new structure or renovating an existing one, the .17 U-Value Energy Block is a smart choice for spaces that prioritize energy efficiency. It’s ideal for both residential and commercial applications, including:
- Bathrooms
- Basements
- Entryways
- Sunrooms
- Accent walls
- Interior partitions
This product is especially appealing for architects, designers, and builders focused on green building practices and energy code compliance. By improving thermal performance and supporting sustainability, it’s a responsible solution for today’s energy-conscious market.
Style Meets Performance
Energy efficiency doesn’t mean compromising on design. The .17 U-Value Energy Glass Block is available in two key styles that combine beauty with performance:
1919/13 Energy .17 U-Value Wave Glass Block

This version features the popular wave pattern, a textured design that offers increased privacy while still letting in ample natural light. It’s the perfect choice for areas like bathrooms or basements where both light diffusion and privacy are important. The wave design softens the appearance of the space while adding a classic, decorative touch.
1919/13 .17 U-Value Clearview Glass Block

If your space demands brightness and clarity, the Clearview block is the ideal solution. With full transparency, this style allows maximum natural light to flow through while maintaining the strength and insulating performance you expect. It’s perfect for sunrooms, commercial storefronts, or feature walls in modern homes and offices.
Flexibility to Match Any Design
At Glass Block Warehouse, we offer a wide selection of glass block styles, sizes, shapes, and levels of transparency to help you achieve the perfect look and functionality. Whether you’re after a frosted finish for privacy or a crystal-clear block to brighten a space, our inventory has something for every vision.
However, please note: These extensive customization options do not apply to the Energy Block line. The .17 U-Value Energy Blocks are available in more limited configurations due to their specialized construction and insulation properties. But even within those constraints, the available styles offer attractive and functional options for most energy-efficient designs.
Ready to Upgrade?
The .17 U-Value glass block is more than just a stylish building material—it’s a smart investment in energy savings and long-term performance. Whether you’re designing a sleek modern home, retrofitting an older property, or constructing a new commercial building, this product delivers results that go beyond appearance.
Let the experts at Glass Block Warehouse help you choose the right Seves Glass Block™ solution for your next project. We’re here to guide you through selection, design, and installation to ensure you get the performance and aesthetics you need.
Contact Glass Block Warehouse today to explore how the high-efficiency .17 U-Value Energy Glass Block can elevate your space!
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