The cost to install glass blocks will vary depending on the contractor you choose, the size and complexity of the project, and your location. However, as a ballpark estimate, you can expect to pay between $50 and $100 per square foot for labor costs. Materials will typically cost an additional $10 to $15 per square foot.

It cost about $25 per glass block, and it usually takes a professional mason about 2 hours to install 8 blocks. Additional costs may include the price of the mortar and other materials needed for the installation.