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 ...

Dear Jim: My house needs more efficient windows. I live alone, so I am considering some glass block windows for security. Are they very efficient, and how can I have some summertime ventilation ...

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 ...

Q. Our home is about 50 years old. We have tried many different solutions to combat a problem with leaking around the glass-block windows. After a heavy rain, we notice water-drip marks on the blocks.