One of the window frames that Lynn and Edward Kaufman said looked like a "preschool project." It has since been replaced, they said. (Courtesy Lynn and Edward Kaufman) ...

Glass block window panels come ready to install, with the blocks mortared together and secured with a metal band. All you have to do is set the panel in place and pack mortar in around it.

Lowe’s window install looks like ‘preschool project,’ homeowners say. It’s not fixed a year later. Updated: Sep. 03, 2023, 12:51 p.m. | Published: Sep. 03 ...

On the low end of the price range, this type of window replacement with premade panels costs as little as $1,700 while the installation of a new custom-made bow window design will cost up to $13,000.