Glass Block Accessories Guide: Mortar & Mortarless
Installing glass block windows or walls is easier and longer-lasting when you use the right accessories. Seves Glass Block offers installation systems for any project, from shower walls and basement windows to large commercial features.
Glass block accessories come in two types: mortar or mortarless. Here’s what each type includes and when to use it.
Installing glass block windows or walls is easier and longer-lasting when you use the right accessories. Seves Glass Block offers installation systems for any project, from shower walls and basement windows to large commercial features.
Glass block accessories come in two types: mortar or mortarless. Here’s what each type includes and when to use it.
1. Mortar Installation Systems
Mortar installations are the traditional method for building glass block panels. They create a strong, durable bond ideal for permanent or large-scale walls.
Key Accessories:
These rigid plastic spacers ensure even spacing between blocks and consistent mortar joints. They make installation faster and improve accuracy — especially on large projects.
These flexible foam strips go around the edges and absorb movement, helping prevent cracks from temperature changes.
Install stainless steel rods between block rows to strengthen and stabilize tall or exterior walls.
These metal brackets secure the panel to the surrounding frame or wall, ensuring long-term structural integrity.
When to Use:
Use mortar installations for big projects, like walls, showers, basement windows, or commercial jobs for strength and long-lasting results.
2. Mortarless (Silicone-Free) Installation Systems
Mortarless systems use silicone to bond the vinyl spacers to the blocks instead of mortar, making glass block installation faster, easier, and cleaner. DIYers or installers who need flexible, lightweight solutions will find them ideal for interior or exterior applications.
Popular Systems:
This versatile system uses vinyl spacers and horizontal/vertical tracks to create a tight, secure fit without messy mortar. It’s a favorite for DIY installations and smaller projects like interior walls and windows.
Designed for 4" thick glass blocks, ProVantage includes spacers, anchors, and track components. It provides professional-grade results with less labor and cleanup.
A contemporary system that complements Seves’ thinner Design Line glass blocks, offering sleek, modern aesthetics and easy installation.
Specifically tailored to the Doric Series blocks, this system maintains the classical look of Doric designs while streamlining installation.
Made for Seves’ smallest glass blocks, MyMiniGlass systems let designers and DIYers create decorative, lightweight panels in creative configurations.
When to Use:
Use a mortarless system for indoor or outdoor walls or decorative projects when you want a quick and easy installation.
Choosing the Right System
Seves Glass Block offers accessories for every project—strong mortar or easy mortarless.
Each system delivers strength, beauty, and long-lasting results, making your project shine from every angle.