This post was most recently updated on January 26th, 2022
Update – How to Seal a Brick Wall
In this updated article, we explain How to Seal a Brick Wall. If you have encountered any issues and have any suggestions or have any questions, please comment below.
There are just as many different types of bricks as there are uses for it in construction. Most commonly, bricks are used in exterior home construction. For example, an entire house may be brick or just part of the house for added curb appeal. Brick can also be used for pillars or columns, mailbox structures, a chimney, or a retaining wall. In most exterior brick applications, it is recommended to seal the brick to protect it from water damage, efflorescence, fading, mold/mildew, dirt, grime, and other contaminants that can be harmful or take away from the brick’s appeal. For interior brick walls, sealing is also beneficial to the brick and will enhance its natural beauty.
To seal a brick wall, you first need to wash it. In areas surrounded by landscaping, be sure to cover and protect any shrubbery that may be harmed. Use a quality brick and masonry cleaner according to the directions. Be sure to wear protective gloves and safety glasses.
Apply the cleaner and use a stiff brush or pressure washer to agitate and break loose the unwanted contaminants. Use a rust remover where any irrigation rust or other rust stains may be present. Interior brick walls are best cleaned with a safe cleaning solution and a scrub brush. Wipe the wall clean using cloths or towels if rinsing with water is not feasible. Once all the stains are gone from an exterior wall, rinse the brick wall well with plenty of water. Let the brick wall dry for a minimum of 24 hours after cleaning.