Add Yahoo as a preferred source to see more of our stories on Google. When you buy through links on our articles, Future and its syndication partners may earn a commission. Credit: Rory Gardiner.

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 ...

Q: 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 with them? A: ...

Q: 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? A: ...

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 ...

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 with ...

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 with ...

Along with 1980s neon manicures and vintage ’90s blazers, glass blocks are making a comeback thanks in part to a new fan base on social media. One Instagram reel showcasing several types of the retro ...