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8 St Marks Place, Brooklyn: Replacing the Glass in Two Tall Windows
What This Page Is
A new project our team has taken on together: replacing the glass in two tall windows in an apartment at 8 St Marks Place in Brooklyn. The frames stay. Only the glass changes. This first entry records the survey.
The Two Windows
Both are tall, narrow windows in dark frames that run from near the floor almost to the ceiling. In each one the upper part of the glass is clear and the lower part is frosted, so the room keeps its view of the trees and the street while the lower half stays private.
| Window | Width | Height |
|---|---|---|
| 1 | 27¼″ | 83⅜″ |
| 2 | 31⅝″ | 87¾″ |
What Has to Be Right Before the Glass Is Ordered
Replacement glass is made to order and cannot be returned, so the survey has to settle more than width and height.
- The exact glass size. The size of the glass itself is not the same as the visible opening. The glass runs into the frame behind the glazing beads, so we confirm how far before the order is placed. See daylight opening in our glossary.
- The thickness and make-up. A modern window holds an insulated glass unit: two or three lites sealed around a spacer. The new unit must be the same overall thickness as the old one or it will not seat in the frame.
- Safety glass. Glass this tall that starts close to the floor is in what the building code calls a hazardous location, so the replacement is tempered or laminated safety glass.
- The frosted section. The line where frosted meets clear has to sit at the same height in the new glass, and the finish has to match from window to window.
- The coating. If the existing glass has a low-E coating, the new glass should have the same one, so that it matches the neighboring windows in color and performance.
- Getting it there. A unit seven feet tall has to travel upright through the lobby, the elevator or the stairs, and that is checked before delivery day.
Project Log
October 2026 — Survey
Both windows measured and photographed: 27¼″ × 83⅜″ and 31⅝″ × 87¾″. Next: confirm the glass make-up and the frosted finish, then order.
Related
Insulated glass units · Tempered glass · Low-E glass · Brooklyn · All Office News
Need Glass Replaced in an Existing Window?
Send us a photograph of the window with its width and height, and tell us what is wrong with the glass. We will tell you whether the glass alone can be replaced and quote it.