How to repair the Cracks in the Walls – Step by step

Over the years, it is very common to see cracks in much of our house. These are very easy to repair, but first we have to know if it is a simple break, fissure or crack .

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To know if you can repair it yourself, you have to know the difference between breakage, fissure and crack.

The tears are very small, about 1 cm deep. These hardly affect masonry, since they only occur in paint or plaster.

Instead, the cracks are scratches, but a little deeper. From approximately 1 to 3 cm, these are safe if rain water, wind or street light does not pass through them. The problem is when they are close to the beams or columns, that’s when you have to call a professional to make sure you don’t cover up a structural problem that continues to get worse over time.

Now, the cracks can be more than 3 cm deep (which would be dangerous). These can not be repaired like the previous two, since you could hide a serious problem that requires a professional solution.

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Taking this into account, you can already think about repairing it yourself or a professional . If you choose the option to repair it yourself, follow these steps:


Rubber gloves
protection mask
Plastic lone
sanding paper
Smooth trowel (can be plastic or metal)
Putty (or some similar product that is especially for these cases)

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Place the tarp around the place where you are going to make the repair. This prevents the product from getting dirty and then having to spend hours cleaning the floor.
To take care of your health, please put on the protection mask and gloves.
We grab the spatula and proceed (very carefully) to remove the small pieces that are loose inside the break.
Then with the brush, we make sure to remove all the dust that remains. This helps the product adhere more easily.
It is important that the place is well dry.
We proceed to put the putty little by little until the interior of the break is well filled.
With the smooth trowel , we proceed to pass all the putty through the break, leaving it very neat.
Let dry between 24 to 48 hours.
Over time, we use sandpaper to finish removing imperfections.
Finally, you can now paint it the color you have on the wall.

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