Window crack repair

How to repair a glass without the need to call a glazier?

A pebble from the lawn mower thrown against a window, a glass placed too heavily on your glass coffee table, a favorite vase overturned by your curious cat… These scenarios, and many others, can cause a crack in the glass.

Unfortunately, the glass that has broken into pieces or that has cracks of more than one centimeter, as well as the double-glazed glass whose two panes have holes, are practically irreparable.

The good news is that you can often repair the glass yourself as long as the crack is small in size. Repair a cracked window, a glass table top or even a mirror with this simple, step-by-step guide

Your toolbox :

With a little more than a steady hand and a few basic supplies, you can repair glass in a short time. You need :

The recommended steps to repair glass perfectly :

  1. Clean the glass
  2. Mix the epoxy or glue
  3. Apply the epoxy
  4. Remove excess epoxy
  5. Polish and clean the surface

How to repair glass in a short time?

1. Clean the glass with dish soap

To repair glass, start by washing the glass around the crack with one or two drops of dish soap on a damp cloth. Remove dust, oil or fingerprints, then wipe the stain with a clean, damp cloth to remove soap residue. Let the glass dry completely.

2. Mix the epoxy in two parts

In a well-ventilated place, prepare a strong glue in two parts on a piece of cardboard or a disposable plate. These adhesives comprise a separate resin and a hardener which are mixed at the time of use.

Although the mixture is often a 50/50 mixture of the resin and the hardener, follow the instructions for your specific product. Use a toothpick to mix the epoxy for at least 20 seconds. Once the epoxy has been mixed, be ready to use it immediately, as it will quickly thicken and harden.

In general, you have five to ten minutes of working time before the epoxy is too thick to easily seep into the crack.

3. Apply the epoxy to the crack in the glass using a putty knife

Press the epoxy onto and into the crack using a putty knife. Slide the adhesive back and forth over the crack, gently pressing it into the damaged area.

Let the epoxy cure for at least five minutes.

4. Remove the excess epoxy with a razor blade and let the rest harden

Scrape off the excess epoxy using a razor blade, then wipe the area with a clean cloth soaked in acetone to further remove the epoxy sticking out of the crack.

Let the repaired glass harden for 24 hours

5. Clean the surface using a glass cleaner

Polish the glass with a clean cloth and a glass cleaner, and enjoy your repaired item.

Repair glass: the different cracks in windows and how to fix them?

Did you know that a broken window is not only a horror, but that it can also cost you money by leaking precious energy from your home? That’s why it’s important to tackle the problem before it gets worse. The first step is to identify the type of crack you are dealing with.

Knowing what type of crack you are dealing with can help you determine if it is enough to repair the glass or if a completely new window is necessary.

Types of cracked windows

1. Tension cracks

In most cases, a tension crack begins near the edge of the window. Over time, it continues to expand and spread on the glass, which leads to a larger problem than expected.

Stress cracks are most often caused by intense fluctuations in temperature, and more precisely by significant gaps between the two. For example, when it is extremely cold outside, you significantly increase the heating inside your home in order to stay warm.

It is also possible that stress cracks appear as a result of more physical aggressions, such as slamming a window. Always treat the windows in your home with care in order to avoid a self-induced stress crack that will likely require expensive repairs.

2. Pressure cracks

A pressure crack is probably the least common type of break on a window. It most often occurs in double-glazed windows or insulated glass panes.

This crack may seem to appear out of nowhere, but in reality it is caused by pressure changes due to extreme weather conditions. This can also happen if the windows are installed at an elevation level that is too low or too high. The windows cannot withstand the pressure of these scenarios and crack as a result.

The shape of the crack in the glass indicates that a pressure crack has occurred. In most cases, the crack follows an hourglass-shaped curve. If you notice a pressure crack, then most likely you will have to carry out a complete replacement of the window.

3. Impact cracks

The impact crack is probably the first thing that comes to mind when you think of a broken window. As you may have guessed from the name, an impact crack is caused by the force of an object hitting the window of your house. Think of the kids next door playing baseball or a golf swing gone wrong.

You can recognize an impact crack thanks to the identifiable star pattern that extends outward from the point of collision.

For your own safety, if one of the windows in your house breaks due to an impact, be careful when cleaning. If you need to remove the glass shards that are inside your home, it is highly recommended that you do not try to remove the broken glass yourself. Due to the nature of the crack, you could seriously injure yourself. That is why it is better to entrust the installation of a replacement window to a professional.

How to temporarily fix a cracked window?

Repairing a broken window pane is usually only a temporary solution. There are simple and quick solutions that you can try, but the only really safe and permanent way to repair cracked glass is to install a replacement window. If a temporary solution is exactly what you are looking for while you are looking for the perfect new windows for your home, you can try one of the following solutions :

1. Masking tape

To repair temporary glass, try applying masking tape on each side of the crack on the glass. This will keep the glass intact and prevent it from breaking further, while preventing water from seeping in. Be sure to extend the tape beyond the crack on both sides, pressing it firmly on the glass for the best results.

2. Adhesives for glass

Window adhesives that are usually intended for use on car windshields are also an option. Clean the crack thoroughly, removing any potential debris with a dropper, before applying the adhesive to the back of the crack. This will prevent the adhesive from leaking through the opposite side of the window. Using a syringe or a brush, apply the adhesive to the crack and let it dry completely before removing the tape.

3. Thick plastic cover

If you are looking for a temporary solution to prevent drafts and insects from entering, applying a thick plastic cover over the window slot will definitely do the trick. Cut a piece of plastic large enough to cover the surface of the broken glass from a shower curtain, tarpaulin, shopping bag or other household item made from a plastic sheet.

Use canvas tape to glue the edges of the plastic to the glass.

Repair glass – Frequently Asked Questions (FAQ)

How to hide a broken window?

Once the glass is completely removed, cover the frame with a tarpaulin, plastic or a resistant garbage bag. Use packing tape or canvas tape or a stapler to secure the plastic in place. The plastic will temporarily serve as a barrier between your home and the outdoor elements.

Can you repair a cracked double glazing unit?

It is possible to repair glass in the glass unit, but if part of the glass has broken, it is likely that the entire glass unit will need to be replaced.

Can we simply replace the glass of a double glazing unit?

You can’t see out of your window because of the condensation inside your sealed double glazing? This phenomenon is usually due to the rupture of the seal that binds the glass. To repair double glass, it is not necessary to change the entire window, you can simply replace the glass.

Why did my double-glazed window crack?

Most often observed on insulated glass or double-glazed windows, pressure cracks can be caused by radical changes in the pressure system over time or when the windows are installed at too high or too low an elevation level.

Do I need to replace my windshield or repair glass?

Maybe. The determining factor will be the size of your splinter or crack. If it is larger than a banknote, you may need to have the windshield replaced. Otherwise, you can repair glass by injecting a resin into the damaged windshield for easy repair.

Hello, I am E. Magouri Laabidi. I decided to share with you my tips to help you become a good handyman.

If I chose to join the editorial team of this company, it is first of all because the editorial charter suits me perfectly, but also because I feel free to put my opinion.

You can consult the privacy policies and the cookie policy. This will prove what I am telling you and confirm.

The success of your DIY usually depends on the choice of the right tools. 123bricolage. fr has thought about this by offering you 100% free tool comparisons. It is the platform that manages the remuneration part.

Сontact us
If you are not satisfied with the quality of the work of windows or a clear breakage of the window - call us!✌️   

+1 617 874 1284

© Aspectmontage Inc

Window Repair and Restoration Services in Boston