Graffiti on a brick wall is a frustrating mess for any homeowner to deal with. Fortunately, there are a number of ways to wash graffiti off a wall without paying a company to do it or replacing the bricks. Washing graffiti off a wall requires some specific equipment, however, such as a pressure washer; it is important to have all of the right tools gathered together to ensure that the graffiti is completely removed from the wall.
Cover all electrical sockets and any fixtures near the area of the graffiti. Use plastic bags and waterproof tape to cover them so as to prevent damage and electrocution.
Close and seal any windows or doors near the brick wall to prevent water from getting into a building during the washing process.
Use a graffiti removing paste or gel according to the manufacturer's instructions. Wear gloves when applying the product to the graffiti. Allow the gel or paste to sit for as long as required to begin the removal process. Follow all manufacturer directions.
Use a stiff-bristled cleaning brush to scrub the painted area after the graffiti remover has treated the paint. This will help loosen and remove some of the graffiti, making it easier to clean the wall thoroughly with the hose.
Rent a pressure washer to use for cleaning the graffiti from the wall. Stand 3 to 5 feet away from the wall and work from top to bottom to remove the graffiti effectively. Go over the graffiti with the pressure washer until all of the paint has been removed.
Applying a brick sealant to the wall after it has been treated can help prevent damage from the pressure washer.