When replacing basement windows, most people now consider glass block. It's a good insulator, secure, and waterproof. It lets light in, but obscures visibility from the outside, and can incorporate ...

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 ...

Dear Jim: 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 ...