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Replacement Windows in St. Louis

Glass Block Comparison

Bathroom Window Comparison Chart


 Single Pane Basement Window – 1/8″ Flat SheetPittsburgh Corning Mortared Glass Block Basement Window
Energy efficiency:Minimal insulating value.Comparable to a double pane window. Eliminates drafts.
Window Treatment:Needed to control privacy, thus adding extra costs.No need. Privacy controlled by pattern selection.
Security:Susceptible to breakage, entry and loss of household contents.Resists breakage and entry. Reduces the risk of burglary.
Replacement:Breakage requires replacement of whole window.Simple block replacement at minimal cost.
Water Penetration:Could be problem with below-grade installation.Water resistant. Acts as solid concrete block wall.
Cost:Pittsburgh Corning Glass Block windows are often less expensive. Check with your local distributor.Very comparable or less expensive.


Pre-assembled Windows
Security with over 50 years of proven performance, your Glass Block panels are available pre-assembled with professional craftsmanship. Masonry & Glass Systems can help answer all of your questions and offer professional assistance and quick, easy installation. You can choose standard or custom sizes, with or without ventilation.

Reduce the threat of forced-entry by installing pre-assembled Glass Block windows from Masonry & Glass Systems. Applications such as bathroom and kitchen windows are ideal for pre-assembled panels.

Save Energy With Low Maintenance
Masonry & Glass Systems Glass Block windows eliminate the need for storm windows and reduce the energy required for heating and air conditioning.

With Glass Block Windows from Masonry & Glass Systems, you can forget about painting, caulking and puttying. There’s nothing to peel, rot or rust. To clean, simply hose the outside and wipe the inside lightly with a damp cloth.

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