Glass blocks make strong, attractive walls and windows that are easy to maintain and keep clean. The blocks are made of two sections of pressed glass fused together with a partial vacuum between them.

Size the trench so there's enough room for the retaining wall block and at least 8 in. of space behind it. Excavate deep ...

Q–I want to replace a bathroom window. There is now a double-hung window with a storm window, and I would like to install window blocks and an exhaust fan. Can you give me the pros and cons and the ...

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 ...