Proper wall preparation is essential if you plan to renovate or paint a room. After all, the goal is to have a nice, even, and clean wall surface by the time the painting is finished. However, the perfect finish depends on several factors, one of which is the current condition of the walls. In this article, we’ll cover everything you need to know about repairing and preparing walls before painting.

Check The Condition Of The Walls Before Painting

It’s essential to take the condition assessment that’s typically recommended before painting seriously. You need to be able to look at the conditions of the walls before painting to create the right finished look. 

For example, this is particularly important when buying a property where you may not know exactly what renovations have been done in the past. If the walls have been painted many times, it’s uncertain whether it’s safe to apply new coats. Instead, you’ll need to remove the thickened layer or paint completely after 4-5 coats of paint. It can be tedious, but by doing this, you can be sure that the new paint won’t pick up patches of the underlying layers.

Cracks, Damages, And Water Ingress Should Be Expected

Always check for any significant damage, cracks, loose or peeling layers, discoloration, or mold stains that may indicate soaking. If you experience any previous soaking spots or mold, this needs to be appropriately treated to make it disappear completely. Investing in a simple paint job without treating this condition will not cover the yellowish-brown discoloration. I previously wrote about this in detail in this article, “WE HAVE A LEAK!“.

Next, tap the wall surface! If you suspect that there’s a loose layer, scrape the surface with a spatula. Again, it’s much better to find out before painting that there’s an issue rather than while you’re working.

If you apply the paint to a wall in poor condition, the moisture may cause the previous layers of paint to peel off with the roller, and the plaster may peel off in patches. This not only means that the surface will be unsightly but also that the painting cannot be continued in this condition. Instead, the preparatory work will have to be started all over again.

How Can I Remove Old Paint From The Wall?

In short: You’ll want to sand, dust, smooth, deep prime, and finally paint the wall. This is the recommended sequence to get a beautiful-looking wall. With these preparatory operations, you can fix the wall and make it even again before painting.

If you need to scrape off old layers of paint, this should be preceded by a thorough dampening of the wall. Make sure to complete this step before any repainting to remove any surface contaminants. Once the thick layer of paint has been loosened, you can easily peel it off the wall with a wide spatula. 

To do this, hold the spatula at an angle of 30-50 degrees and apply medium pressure to the surface to remove the paint. Next, loosen and remove stubborn stains by wetting more vigorously. After drying, sanding is next. Make sure to use sandpaper that can be held on a large surface with a smoothing pad and handles. The operation should be carried out with gentle strokes and frequent wiping of the sheet.

How Can I Repair Damaged Paint On My Wall?

In order to repair damaged paint on your wall, you’ll have to scrape the cracks deep, widen them and wet them. Once that’s finished, you’ll have to fill the gaps with glue. Next, sand the repaired areas to match the plane of the wall, and after dusting, you can start the deep foundation of the walls of the room. This is important because the agent will both consolidate the loose surface grains of the wall and reduce the absorbency of the walls.In addition to preparing your walls properly before painting or renovating, you may also want to read my previous article on things to consider before your painting project.


While you can tackle this project on your own, it may turn out to take a lot longer and require a lot more work than expected. If you’d rather leave the assessment, repair, and painting of your walls to a professional, call us. 1(904)217-9681

I perform a quick on-site survey with my team and give you a personalized quote in no time for your planned restoration.

I work quickly and reliably! I will quickly take care of your indoor painting needs with quality materials and more than 10+ years of experience!

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