Generally, brick siding on a home requires less maintenance than a wood-sided home, although brick still necessitates minimal yearly maintenance to keep the brick working efficiently and looking good. A few things one should do to maintain a brick home are: Yearly cleaning, use mild detergent and a brush to scrub off mildew and other unwanted stains on your home. Using a pressure washer may cause damage to your home, so try to avoid using harsh water treatments. After washing the home with the detergent and brush, gently rinse the brick to get rid of extra suds. You can also use an acid wash brick cleaner for hard to clean water spots. Protect your brick sided home with a siloxane-based or silane-based sealer, this will help protect your brick home from moisture related problems. You should also inspect your home for broken, bowing, or loose bricks. If water has gotten underneath the bricks, they will need to be repaired. More here