Red Seal Glazier Practice Exam 2025 – 400 Free Practice Questions to Pass the Exam

Question: 1 / 400

What should a glazier do first when preparing to install a new window?

Buy materials

Remove the old window

Ensure accurate measurements

The first step a glazier should take when preparing to install a new window is to ensure accurate measurements. Accurate measurements are crucial because they determine the size and fit of the new window within the existing opening. This step prevents potential errors that could lead to complications during installation, such as improper sealing, gaps, or the need for additional modifications.

By measuring the width, height, and depth of the window opening, as well as checking for level and plumb conditions, the glazier can avoid issues that could arise from incorrectly sized windows. Once accurate measurements are taken, the glazier can proceed with purchasing appropriate materials, removing the old window if necessary, and gathering the required tools, all of which depend on having the correct dimensions first. This systematic approach helps ensure a successful installation process.

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Gather tools

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