News from the Block, Innovate Building Solutions Blog
News from the Block, Innovate Building Solutions Blog
Bathroom, Kitchen, Basement Design & Remodeling Ideas for the Nicest Home or Business on the Block
Bathroom, Kitchen, Basement Design & Remodeling Ideas for the Nicest Home or Business on the Block

How to Install a Glass Block Bathroom Window in a New Construction or Addition Project

glass block bathroom replacement window
glass block bathroom replacement window
Vinyl framed glass block bathroom window used in a new home

Installing a glass block bathroom window in new construction framed openings has never been easier. Follow these simple steps to get a great looking window that is sized correctly the first time.

  • Determine whether you want a framed or unframed window– Most new construction glass block windows can be installed easiest with a vinyl framed glass block window that has nailing fins for ease of installation. However if your upper floor wall construction is a poured or masonry wall then an unframed window will suit your project best.
  • Determine the approximate size of the opening – Since glass block sizes are available in 2” increments (the sizes available for the blocks include 4 x 8, 6 x 6, 6 x 8, 8 x 8, and 12 x 12) you’ll want to determine your approximate window size in 2” increments.
  • Consult a glass block sizing chart or call a prefabricated window manufacturer– For wood framed openings once you have your approximate sizing you’ll want to look up what size to make the rough opening of the vinyl framed window. For masonry openings call a glass block prefabricated window manufacturer to see the various sizes they can make your unframed window (note – the sizes with the unframed system can vary depending on whether silicone or mortar joints are used).
  • Pick a glass block design – There are several pattern selections for the blocks you can choose from. If your bathroom window is on the side of the home close to neighbors you may want a high privacy block pattern like Icescapes, Iceberg, Delphi or Pristal from Pittsburgh Corning and Mulia. If privacy is not as large a concern the Wave or Decora patterns work well.
  • Choose colored or frosted glass block to dress up your design – If you want a one of a kind look consider adding some frosted or colored glass blocks. These units can be used randomly, as a stripe, or throughout the whole window assembly.

If you’re working on a  bathroom remodeling project a bathroom window using glass blocks will allow you to create more privacy, eliminate the need for curtains, and the window won’t rot or rust like a wood or metal framed window.

Do you have any questions about how to install a bathroom or upper floor glass block window in a new construction or remodeling project? Do you have any tips you’ve learned from doing this type of project in the past?


If you need more information about installing glass block bathroom windows in a new construction or remodeling project visit

Cleveland Glass Block (216-531-6363), Columbus Glass Block (614-252-5888) or Mid America Glass Block of Cincinnati or Dayton.

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Mike Foti

President of Innovate Building Solutions a nationwide supplier and regional (Cleveland and Columbus) remodeling contractors. Some of our product lines include glass counters, floors, backsplashes, glass blocks and grout free shower and tub wall panels


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