Glass blocks make strong, attractive walls and windows that are easy to maintain and keep clean. The blocks are made of two sections of pressed glass fused together with a partial vacuum between them.

Dear Nina: Complete glass block window installation kits are available, but it is not difficult to do it yourself using individual glass blocks and mortar. This will result in an extremely strong ...

Q.I am concerned about the security and efficiency of some of my old single-pane, first-floor windows. I think glass block windows would be more secure. Are they efficient and can I install them ...