Skip to Content

Replacing Cracked Double Pane Windows: Vital Considerations

It is expected that a double-paned window will be durable and well-made.

However, the window will always reach a breaking point depending on how it was installed or what is happening outside. As a result, property owners are instructed to inspect the structural integrity of all their windows regularly.

You’ll want to get on top of this issue as soon as possible to avoid it worsening.

For a double pane window with a crack on the outside, you must devise a straightforward strategy and start working on the solution immediately.

You should replace the entire window if the outside of a double pane window is cracked. Changing a windowpane is a labor-intensive and expensive process with chances of recurring issues. You must remove the old frame to get the new double pane window to settle correctly.

Double Pane Window Cracked on Outside: Why not Repair?

Cracked Double Pane Windows

Repairs Are Expensive

Repairing a double pane window is so expensive.

You will need to replace the damaged exterior pane, reseal it, and ensure the installation is accurate.  It costs a lot of time and money to accomplish this.

Whether you do it yourself or hire a professional to fix a damaged exterior window pane, it doesn’t matter.

Purchasing a new double-pane window is highly recommended for the majority of homeowners.  This ensures that the new installation is secure and won’t break any time soon.

Your investment will pay off in the long run because you can be confident that the new double pane window will not break or be a big issue later.

Rather than replacing a single pane, opt for a brand-new window if your exterior pane breaks.

 Requires Specialized Assistance and Equipment

If an external window pane breaks, you’ll need to plan on how to replace it.

If you don’t have the expertise of a seasoned professional, you won’t get the best results. To get the outcomes you’re looking for as a property owner; you will need to pay attention to these small details, as a DIY project will not yield the results you are after.

Resealing the window is one of the most challenging tasks to complete.

You will need to ensure that the seal is tight and that it remains intact. If the seal becomes loose, the window will break when it starts to shake.


When considering window repair, you should remember that replacing a cracked window pane is time-consuming.

Instead of wasting your time and energy on a time-consuming solution, choose one that will allow you to focus on other aspects of your life.

Hire a window technician and replace the damaged window as soon as possible. This will keep things simple and give you confidence about how the window will look in the years to come.

Could Lead To Repeated Problems

Attempting to repair a cracked window pane is not a brilliant idea.

Fixing the window will likely result in a loose or improperly sealed windowpane. Window Panes start breaking down on you when this happens, and the real trouble begins at that point.

You’ll have to fix the same glass repeatedly, and soon the interior pane will likewise break.

At this point, you may end up damaging other parts of the window frame, increasing the replacement cost.

What Causes the Double Pane Window to Break?

The unique construction of double-pane windows might be compromised by external factors, installation issues, or even minor damage, resulting in the windows’ break.

  • Size and Shape of the Windows

Windows with a high aspect ratio are likely to break spontaneously, even though they let in much natural light.

It is more difficult to break glass in square (or round) windows with equal sides because the weight is distributed and supported uniformly. But, with the long and narrow windows, the pressure is exerted on a small section of the glass, increasing the risk of breakage.

  • Window Construction 

Lower-cost double-pane windows may seem like a good deal. However, if those windows spontaneously fail after only a few years, your early savings will have been worthless.

Inexpensive double pane windows may come with scratches from the manufacturing process, excess pressure between the panes, glass panes that are too weak, or low-quality desiccant inside the windows. Investing in high-quality double-paned windows and consulting with glass experts can help prevent these problems.

  • Exposure to Heat

High-temperature changes on either side of a double-glazed window could cause it to break.  This is because the area between the panes in a double pane window is often pressurized, and exposure to excessive cold or heat could cause the panes to be damaged.  

Covering double-glazed windows with curtains or blinds to protect them from your heating system or the sun can help.

  • Physical Impact

Of course, windows can break if they are subjected to a physical impact.

Even if nothing has hit the window, stress cracks can form in the window due to a slam shut.

  • Poor Installation

Improper installation can lead to double pane windows that seem to break for no apparent reason. When installing double pane windows, one must consider how pressure, temperature, stress, and dimension will influence the safety of the window.

How to Prevent Breakage of Double-Paned Windows?

Cracked Double Pane Windows


Choose a competent glass professional for the proper design and installation of your double-glazed windows to avoid them breaking on their own after installation.

Also, always buy double-pane windows from reputable companies. It is possible for a reputable glass firm to precisely measure the stress and heat impacts on your double-paned windows so that they can be installed with a significantly lower danger of your windows shattering for no cause.

Final Take

When a double pane window is damaged from the outside, you should not be attempting to fix it. An experienced specialist is required for this task, which is expensive and time-consuming. Replace the entire window to guarantee a precise installation.

In the long run, this will save you a ton of money and give you a sense of security.

Repairing the double-pane window is the wrong choice because it will only lead to further problems in the future.