Glass Cutting and Glazing Steps in Window Production

Measuring the opening before any glass is cut

Every glass unit begins on site. Our team measures the opening at several points, because walls are rarely perfectly square or level. We record width and height at the top, middle and bottom, and note the depth of the frame where the glass will sit.

These readings are written into a drawing and a specification that you approve before production. Measuring on site rather than from old plans prevents most glazing problems later.

Choosing the glass build for your specification

Before cutting, the glass type is confirmed with you. Options include single or double glazing, safety glass, tinted or privacy finishes, and the total thickness that suits the profile depth of a Belgian steel-look window or door.

• Confirm whether the glass is for a balcony, bathroom or street-facing room
• Check that the unit thickness matches the profile glazing channel
• Note any edge or sealing requirements for the project

Exact performance values are checked with the engineer on your project.

Cutting and edge finishing

Glass is cut to the approved drawing, with a small allowance for the glazing channel and sealing material. Cut edges are ground so they are smooth and safe to handle. Corners are checked for square, since even a small deviation shows once the sash is closed.

Each piece is labeled with its position in the building so the glass matches the correct frame during assembly.

Assembling the glazing in the profile

In the workshop, the glass is set into the steel-look profile on setting blocks, which keep it centered and off the frame. Gaskets are fitted on all sides, and the glazing beads are pressed in to hold the unit firmly.

This stage determines how evenly the sash closes and how well the window resists water and drafts, so the gaskets and beads are checked before the frame moves on.

Quality checks before delivery

Before the window leaves the factory, the glazed unit is inspected for clean surfaces, correct gasket seating, straight beads and smooth opening. The sash is opened and closed to confirm it moves freely and locks correctly.

• Surface check for scratches or residue
• Gasket and bead alignment
• Operation test of handle and locking points

Installation and final adjustment

On site, the window frame is fixed level and plumb, and the glazed sash is hung and adjusted. Small corrections to the hinges and locks are made so the sash seals evenly along all four sides.

Once installed, we check the glass again for any stress from the fixing and confirm that the unit is clean and protected before handover.

Frequently asked questions

Can I change the glass type after the drawing is approved?

Yes, but changes should be requested before cutting begins. A change after production may require a new drawing and a new cut, so it is best to confirm the glass choice early.

Why is on-site measurement needed if I already have plans?

Building openings often differ slightly from the original plans. Measuring on site ensures the glass fits the real opening, not the drawing.

How do I know the glass will be safe?

The glass type is confirmed with you during planning, and the specification states the build. Safety requirements for your location are checked with the engineer.

Will the window glass be checked after installation?

Yes. We check the glass and the sash after fixing and make small adjustments so the window opens, closes and seals correctly.

Common mistakes to avoid

Ordering glass from an old measurement or skipping the glass type review often leads to units that do not fit or do not perform as expected. Always approve the written specification before production starts.

Our recommendation

Ask for the glass build to be written in the specification with the drawing, and confirm the thickness against the profile glazing channel before approval.

Summary

Accurate measurement, a confirmed glass specification and careful gasket and bead assembly are what make a Belgian steel-look window glaze correctly and last.

Related guides

• Surface Preparation and Powder Coating for Steel-Look Frames
• Welding and Assembly Stages in Steel-Look Door Manufacturing
• Quality Control Checkpoints During Window Manufacturing
• Cutting and Profiling Steel-Look Aluminum and Iron Sections
• Weatherstrip Fitting Process in Belgian Profile Doors
• How the Production Process Works for Belgian Profile Windows
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