Sign Maintenance Australia


How do you fix a cracked neon sign?

How to Fix a Cracked Neon Sign: A Step-by-Step Guide


How do you fix a cracked neon sign? Any company or personal space can benefit from the addition of character and charm if they have neon signs because they are a popular and eye-catching form of signage. However, just like any other sign, they are prone to deterioration. Cracking is one of the most prevalent problems with neon signs and is one of the most common issues with neon signs. Broken neon signs not only have an unappealing appearance but also pose a potential threat because they might lead to electrical problems. In this piece, we will walk you through the steps necessary to repair a neon sign that has cracks in it.

Step 1: Assess the Damage

Evaluation of the damage is the initial stage in repairing a neon sign that has been cracked. Examine the length of the fracture and establish if it is shallow and does not extend all the way through the glass tube or whether it is a deep crack that does. If it is just a surface break, it can be readily repaired; but, if it goes all the way through the tube, you will need to replace it.

How do you fix a cracked neon sign?

Step 2: Turn off the Power

It is essential to disconnect the power supply to the neon sign before doing any kind of maintenance work on it. It is essential to do so in order to avoid receiving any electrical shocks or being involved in any other accidents.

Step 3: Remove the Glass Tube

If the crack is significant and extends through the entirety of the glass tube, you will need to have it removed. In order to accomplish this, you will need to gently bend the electrodes that are located at each end of the tube, and then slide it out. You always have the option of enlisting the assistance of an expert if doing these actions makes you feel uneasy.

Step 4: Clean the Tube

When you have finished removing the glass tube, it is imperative that you give it a careful cleaning. To clean the tube and remove any dirt, dust, or debris that may be stuck within, use a gentle cloth and a cleaning solution. Before moving on to the next stage, you need to make sure that it is entirely dry.

do you fix a cracked neon sign

Step 5: Cut the Tube

If the crack is on the surface of the tube, you will need to cut it in order to remove the piece that is cracked. To cut the tube at a distance of at least one inch away from the crack on both sides, use a tube cutter or a knife that is very sharp.

Step 6: Sand the Ends

After you have cut the tube to the desired length, you must sand the cut ends so that the new surface is smooth. Sand the ends of the tube using sandpaper that has a very fine grit until they are completely smooth and level.

Step 7: Connect the Electrodes

Sanding the ends of the tube is the first step, followed immediately by connecting the electrodes. After positioning the electrodes so that one is on each end of the tube, slip them into position. Check that they are not only secure but also in the appropriate location.

Step 8: Seal the Tube

When you have finished installing the electrodes, you need to make sure that the tube is well sealed so that there are no gas escapes. Sealing both ends of the tube requires the use of a glass sealant or silicone.

Step 9: Test the Sign

It is essential to do a test on the sign to guarantee that it is in good functioning order before the electricity is turned on. Check to verify if the sign is correctly illuminated after you have it connected to a power source and see if it lights up.

Step 10: Turn on the Power

In the event that the sign is functioning as it should, it is time to switch on the power. Make certain that the sign is fixed in a secure manner and that there are no cables or connections that are hanging free.


The work of repairing a shattered neon sign may appear to be a challenging one, but in reality, it is not as complex as it may appear. If you follow these easy instructions, you’ll be able to fix your neon sign in no time, and it will look just as wonderful as it did when you bought it. When working with electricity, it is important to constantly remember to take the required safety precautions, and if you do not feel comfortable performing the repairs yourself, it is best to seek the assistance of a professional. Your neon sign has the potential to last for many years to come and continue to bring its own special brand of enchantment and personality to the area if it is properly cared for and maintained. How do you fix a cracked neon sign?

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