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 ...

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 ...

Q: I am considering installing glass block windows on some first floor ones for security. Is the solid glass energy efficient and can I have some summertime ventilation with them? A: From a security ...

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 ...

If you’ve been in Pittsburgh for more than a few hours, you’ve definitely seen them. They’re in basement, bathroom and kitchen windows, of course — odds are you have one in your house. But they also ...