How To Spot A Water Leak in Your Brick Wall

Brick is known for its strength and durability, but over time, even this sturdy material can begin to break down. Whether it’s due to weather, aging mortar, or physical damage, it's important to address problems early to avoid more costly repairs. Spotting a water leak early can make all the difference. Here’s how to identify a water leak in your brick wall:

Stains or Discoloration

Water often leaves behind stains. If you notice discoloration on your walls, it may be a sign of a water leak. Check both the interior and exterior sides of the brick wall for dark patches, white mineral deposits (called efflorescence), or greenish mold.

Dampness

If your brick wall feels damp on a dry day, water could be leaking in. Additionally, if you notice dampness, bubbling paint, or peeling paint inside your home, it’s a strong indication of a leak. If the wall feels soft or spongy, there is likely water nearby.

Damaged Mortar

One of the easiest paths for water to enter your brick wall is through the mortar. Over time, mortar can develop cracks and gaps that allow water to seep in. Inspect the mortar for any signs of deterioration where water might penetrate.

Damaged Flashing

If your brick wall includes windows, doors, or a roofline, damaged flashing in those areas could be the source of a water leak. Carefully inspect the flashing around these components to check for damage or separation.

Moldy or Musty Smell

Mold and mildew thrive in moist environments. If you notice a moldy or musty odor in your home—especially near exterior walls—it may indicate a hidden water leak. Mold can be hazardous to your health, so don’t wait to have your brick wall evaluated by a professional.

Cracked Bricks

Cracked bricks create an easy entry point for water. If you spot any cracks in the bricks themselves, it’s time to call a professional mason who can provide effective repair solutions.

Basement Leaks

Does your basement have an exterior brick wall? Leaks can occur there too. If you see puddles or water trails in your basement, inspect the nearby brickwork—it may be the source of the leak.

Rust

Rust on nails, screws, or fixtures attached to your brick wall can indicate the presence of water. While rust can come from multiple sources, it’s wise to have a professional assess the brick to determine whether water infiltration is to blame.

Humidity or Condensation

While indoor humidity and condensation can result from various causes, a water leak through your brick wall can significantly increase indoor moisture levels. If you notice condensation—especially on interior walls—it could be a sign of a leak.

Need Brick Repair in South Chicago or the Surrounding Areas?

If you’ve noticed any of the signs above, it’s time to contact a professional. Kerry Tuckpointing offers licensed brick repair, brick restoration, and tuckpointing in Evergreen Park, Burbank, Oak Lawn, and surrounding Chicagoland areas. Don’t let a small water leak turn into a major repair bill. Whether you need tuckpointing for crumbling mortar or brick replacement for cracked sections, Kerry Tuckpointing has you covered. Worried about a water leak in your brick wall? Contact Kerry Tuckpointing today!