A broken window can be a frustrating and expensive problem, but it doesn't have to be. With the right tools and some basic knowledge, you can repair a broken window yourself. In this article, we will walk you through the steps to repair a broken window, including preparing the window, removing the broken glass, and installing a new piece of glass.

Step 1: Prepare the Window

Before you begin the repair process, you need to prepare the window. This includes removing any remaining broken glass and cleaning the frame and surrounding area. Use gloves to protect your hands and a vacuum cleaner or broom to remove any small pieces of glass. Clean the frame and surrounding area with a soft cloth and warm soapy water.

Step 2: Remove the Broken Glass

The next step is to remove the broken glass. Use a putty knife to loosen the putty that holds the glass in place. Carefully remove the broken glass pieces, taking care not to damage the frame. If the glass is still in one piece, gently tap it with a hammer until it breaks into smaller pieces that can be easily removed.

Step 3: Measure the Opening

Once the broken glass is removed, measure the opening to determine the size of the new piece of glass you will need. Measure both the width and height of the opening and write down the dimensions. Make sure to measure the opening accurately, as the new piece of glass needs to fit snugly.

Step 4: Cut the New Piece of Glass

Take the measurements to a glass shop and have them cut a piece of glass to size. Glass can be cut to custom sizes, so make sure to get a piece that will fit the opening precisely. If you are installing a new window, you will also need to purchase a new window frame and any necessary hardware.

Step 5: Install the New Piece of Glass

Once you have the new piece of glass, it's time to install it. Start by applying a small amount of glazing compound to the frame around the opening. Make sure the compound is evenly distributed and covers the entire frame. Place the new piece of glass into the opening, pressing it gently into the glazing compound.

Step 6: Seal the Window

Once the new piece of glass is in place, you need to seal the window to keep out moisture and air. Use a putty knife to apply a layer of glazing compound around the edges of the glass, making sure the compound is flush with the frame. Smooth the surface of the compound with the putty knife, removing any excess. Allow the compound to dry according to the manufacturer's instructions.

Step 7: Paint the Window

Once the glazing compound is dry, you can paint the window to match the surrounding area. Choose a paint that is compatible with the type of frame and material you have. Apply a thin layer of paint, making sure to cover the entire frame and glazing compound. Allow the paint to dry completely before re-installing any hardware or trim.


Repairing a broken window can seem intimidating, but with the right tools and some basic knowledge, it's a task that can be done by anyone. By following the steps outlined in this article, you can repair a broken window yourself, saving time and money. Remember to work carefully and follow all safety precautions when handling broken glass.