Dear Jim: 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 ...

Dear James: It would be easy for a thief to break through our utility-room window. I think a glass block window would be better. Is it difficult to install a mortar-type glass block window or is a kit ...

I want to replace some old single-pane first floor windows with glass block windows for security. Are they as efficient as other new windows, can they be opened, and can I install them myself? Glass ...

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 ...

The glass block window panel sits on the block or concrete wall and is held in place with mortar and caulk. When it comes to basement windows, there’s nothing more practical than glass block windows.