Make any room in your home more beautiful and more secure. Choose from three distinct patterns, each offering its own unique style, degree of light transmission and privacy. Preassembled panels are available with or without vents.

Basement Glass Block

DELPHI® Pattern

DELPHI® Pattern, with prismatic diamond design, provides moderate light transmission with maximum privacy

Icescapes Glass Block ICESCAPES™ Pattern

ICESCAPES™ Pattern non-directional pattern lets light in without sacrificing privacy. Maximum light transmission/medium to maximum privacy.

Icescapes Decora Glass BlockDECORA® Pattern

DECORA® Pattern, with its trademark wavy undulations, provides maximum light transmission with subtle visual distortion.

Best Window and Door is an authorized distributor and installer of Pittsburgh Corning Glass Block. 

Save Energy with Low Maintenance

Pittsburgh Corning Glass Block windows eliminate the need for storm windows and reduce the energy required for heating and air conditioning.


With Pittsburgh Corning Glass Block windows, 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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501 Broad Street

Johnstown, PA 15906

Local: (814) 536-1422

Toll Free: (800) 292-5594