How To Replace Glass In A Sliding Door

Energy Swing Windows Replacement Doors Three panel sliding glass
Energy Swing Windows Replacement Doors Three panel sliding glass from


A sliding glass door is a popular feature in modern homes, providing a seamless connection between indoor and outdoor spaces. However, accidents happen, and glass panels can get cracked or shattered over time. In this article, we will guide you through the process of replacing the glass in a sliding door, allowing you to restore its functionality and aesthetics.

Gather the Necessary Tools and Materials

Before you begin, make sure you have the following tools and materials:

  • Gloves and safety goggles
  • Tape measure
  • Glass cutter
  • Glass suction cups
  • Putty knife
  • Glass cleaner
  • Replacement glass panel
  • Glazing compound
  • Paint and brush (if necessary)

Step-by-Step Guide

Step 1: Remove the Damaged Glass

Start by carefully removing the sliding door from its track. Place it on a stable surface and use a putty knife to remove the old glazing compound. Once the compound is removed, you can gently push out the damaged glass panel.

Step 2: Measure and Cut the Replacement Glass

Take precise measurements of the empty frame using a tape measure. Transfer these measurements to the new glass panel and use a glass cutter to score along the lines. Apply gentle pressure on both sides of the scored line to break the glass cleanly.

Step 3: Install the Replacement Glass

Apply a thin layer of glazing compound around the edges of the empty frame. Carefully place the replacement glass panel into the frame and press it firmly. Use glass suction cups to hold the glass securely while you work.

Step 4: Secure the Glass

Press the glass firmly against the glazing compound to ensure a proper seal. Use additional glazing compound to fill any gaps or uneven areas. Smooth out the compound using a putty knife and remove any excess.

Step 5: Clean and Paint (if necessary)

Use a glass cleaner to remove any fingerprints or smudges from the glass surface. If your sliding door has a wooden frame that needs repainting, this is the time to do it. Choose a paint color that matches the existing frame and apply it using a brush.


Replacing the glass in a sliding door may seem like a daunting task, but with the right tools and a step-by-step approach, it can be done successfully. Always prioritize safety by wearing gloves and safety goggles throughout the process. By following this guide, you can restore your sliding door to its former glory, bringing back the beauty and functionality it once had.