How To Fix Cracked Glass Window

How To Fix Cracked Glass Window

How To Fix Cracked Glass Window

Cracked glass windows can be a major eyesore and also present safety hazards. Whether it’s caused by a stray baseball or extreme weather conditions, a cracked glass window should be fixed as soon as possible. But the good news is that you don’t have to hire a professional to get the job done. In this article, we will guide you through the step-by-step process of fixing a cracked glass window, saving you both time and money.


  • Step 1: Assess the Damage
  • Step 2: Gather the Tools and Materials
  • Step 3: Remove the Broken Glass
  • Step 4: Prepare the Window Frame
  • Step 5: Install the New Glass
  • Step 6: Secure the Glass in Place
  • Step 7: Seal and Finish
  • FAQs

Step 1: Assess the Damage

The very first step in fixing a cracked glass window is to assess the damage. Determine the extent of the crack and evaluate if it can be repaired or if the entire glass needs replacement. Small cracks or chips can often be fixed, while larger cracks or shattered glass may require professional help.

If the damage is minimal, you can move on to the next step. However, if the window is severely damaged, it’s best to call a professional glass repair service to ensure your safety and the longevity of the repair.

Step 2: Gather the Tools and Materials

Before you begin the repair process, make sure you have all the necessary tools and materials at hand:

  • Safety goggles and gloves
  • Glass adhesive or epoxy
  • Putty knife
  • Glass cutter (if replacing the glass)
  • Replacement glass (if necessary)
  • Lint-free cloth
  • Glass cleaner
  • Masking tape

Having these tools and materials ready will make the process smoother and more efficient, saving you time and preventing any delays while fixing the cracked glass window.

Step 3: Remove the Broken Glass

The next step is to remove the broken glass from the window frame. Carefully put on your safety goggles and gloves to protect yourself from any potential injuries. Use a putty knife to gently pry the broken glass away from the frame. Be cautious while doing this to avoid any further damage to the window or yourself.

Once you have successfully removed the broken glass, clean the window frame thoroughly using a lint-free cloth and glass cleaner. This will ensure a clean surface for the new glass installation.

Step 4: Prepare the Window Frame

Now that the broken glass is out of the way, it’s time to prepare the window frame for the new glass. Inspect the frame for any loose or damaged putty, and if necessary, remove it using the putty knife. Be gentle during this process to prevent any harm to the window frame.

If the putty is in good condition, you can skip this step and proceed to the next one.

Step 5: Install the New Glass

If you are replacing the entire glass, you will need a glass cutter to cut a new piece of glass to the exact size of the window frame. Measure carefully and mark the dimensions on the replacement glass. Lay the glass flat on a table and use the glass cutter to score along the marked lines. Apply even pressure to ensure a clean cut.

Once the new glass is cut, carefully place it into the window frame. Make sure it fits snugly and aligns properly. If necessary, use masking tape to temporarily secure the glass in place while you proceed to the next step.

Step 6: Secure the Glass in Place

Now it’s time to secure the glass in its position. Apply a thin, even layer of glass adhesive or epoxy to the edges of the glass. This will help to bond the glass with the window frame and prevent any future cracks or movement.

Gently press the glass against the frame, ensuring it is properly aligned. Remove any excess adhesive using a putty knife or a cloth. Allow the adhesive to dry completely as per the manufacturer’s instructions.

Step 7: Seal and Finish

Once the adhesive has dried, it’s essential to seal and finish the repaired window to prevent any air or water leaks. Apply a fresh layer of putty to the window frame using a putty knife. Smooth it out evenly and remove any excess putty.

Clean the glass surface using a glass cleaner to give it a spotless finish and remove any fingerprints or smudges.

And there you have it! Your cracked glass window is now repaired and good as new. With a little effort and the right tools, you can save money by fixing the crack yourself and ensure the safety of your home.


Q: Can I use regular household glue to fix a cracked glass window?

A: No, regular household glue is not suitable for fixing glass windows. It may not bond properly with the glass and can cause further damage or even injury. It’s best to use specialized glass adhesive or epoxy for a secure and long-lasting repair.

Q: How do I prevent future cracks in my glass windows?

A: While accidents happen, there are a few measures you can take to minimize the risk of future cracks in your glass windows. Avoid using excessive force when closing or opening windows, keep windows clean and free from debris, and if possible, install storm windows to provide an extra layer of protection against extreme weather conditions.

Q: Is it possible to fix a cracked glass window on my own?

A: Yes, it is possible to fix a cracked glass window on your own, as long as the damage is not severe. However, if you feel unsure or uncomfortable with the repair process, it’s best to seek professional help to ensure a safe and efficient repair.

Q: How long do I need to wait for the adhesive to dry?

A: The drying time for glass adhesive or epoxy can vary depending on the product and manufacturer’s instructions. It is essential to follow the recommended drying time to allow the adhesive to cure properly. Typically, it can take anywhere from a few hours to overnight for the adhesive to fully dry and bond the glass with the window frame.

Q: Can I paint over the putty to match the window frame color?

A: Yes, you can paint over the putty to match the color of the window frame. However, it’s recommended to wait until the putty is fully dry before applying paint. Choose a paint that is suitable for the material of your window frame and apply it evenly for a seamless finish.

Fixing a cracked glass window doesn’t have to be a daunting task. With the right tools, materials, and a little patience, you can restore your window’s appearance and functionality. Remember to prioritize your safety and seek professional help if needed. By following the step-by-step process outlined in this article, you’ll be well on your way to a successfully repaired glass window.

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