When you notice mildew on the bricks of your house, clean mildew off right away to reveal the bricks at their best. First, you need to mix a solution of water and bleach in a bucket. Make sure to wear gloves while doing this to prevent the bleach from damaging your skin. If the mildew is within reaching distance, use a brush and if the mildew is higher up, use an extendable brush or make one by attaching a brush to a long stick, such as a broomstick. Soak the brush in the solution and brush the mildew on the wall until the mildew is gone. Take care not to splash the product on nearby plants or grass. A high-pressure power washer is another option.