To understand how to clean exterior walls before painting, follow these steps:
- Clear the area surrounding the exterior walls.
Although it may seem simple, this is frequently disregarded. Start by making your space secure and clutter-free. Also, to get a clear route, move all your outdoor furniture, hoses, plant pots, bins, and any other obstructions away from the walls.
To avoid damage, tie back or temporarily remove climbing plants or trellises. Tape window frames, doors, pipes, lights, and fixtures, and cover patios or decks with dust sheets to keep dirt and splashes out.
- Pressure wash your outside walls.
To get rid of loose paint, dust, and grime, use a pressure washer. Apply only moderate pressure that could not damage the wall surface. If your exterior wall has mould or mildew, you can use a 3:1 solution of water and bleach or a sugar soap solution to clean it completely.
- Scrub out any stubborn stains on the wall.
After pressure cleaning, some areas could still have persistent dirt, pollution stains, or grease. Therefore, you can physically clean these patches using a stiff scrub brush and an appropriate degreaser, like an exterior-grade cleaner. Pay attention to places where dirt likes to collect, such as corners and shaded spots.
- Let your house’s outside wall dry.
Allow the outside walls to completely dry. Leave it for at least 48 hours. It is important because moisture can be trapped while painting over wet surfaces. Later on, it may cause bubbling, peeling, or paint failure.
Following these cleaning steps, look for holes, cracks, or uneven surfaces on the walls. If it is there, use caulk or exterior-grade filler to fill it. After this, you can remove flaking paint, address the damp issue, apply primer, and finally, paint the wall. This was all about how to clean outside walls before painting.
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How to Clean Exterior Walls Before Painting?
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2026-01-07T09:11:19+00:00 2026-01-07T09:12:53+00:00Comment
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