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.

I live in a very common home here in Florida. Most are built from concrete block. Twenty years ago, a room was added to the home and the rear exterior concrete block wall became an interior wall. A ...

Q. My house was built in the ’40s and has a cinder-block foundation. On the inside, it has paint that’s peeling. Some of the blocks are crumbling, but the problem is not deep, less than an inch. In ...