The short answer
First Steps to Dry Brick
Act quickly to reduce moisture. Use towels or a wet-dry vacuum to soak up standing water at the base of the wall. Move furniture and belongings away from the damp surface to let air circulate. If the wall is inside, turn on ceiling fans or place a box fan on a chair facing the wall.
Open windows and doors if outdoor humidity is lower than indoor humidity. In a mild climate with wet winters and dry summers, summer days are often drier. Check the weather first. If it is rainy or humid outside, keep windows shut and rely on fans and a dehumidifier instead.
Use Dehumidifiers and Heat
A dehumidifier pulls moisture from the air, which helps the brick release water into the room. Place it close to the wall, but leave a few inches of space for airflow. Empty the water reservoir regularly, or connect a hose to a drain. Run it continuously for several days for good results.
Gentle heat can speed evaporation. A space heater set to low, placed a few feet away, warms the brick without causing cracking. Do not point a heater directly at the wall or use high heat. Overheating can force moisture deeper into the brick or cause surface damage. Keep the room warm but not hot.
Improve Air Circulation
Stagnant air slows drying. Set up fans to create a cross breeze. Aim one fan at the wall and another toward an open window or door to push moist air outside. If the wall is in a basement or a room with no windows, use a portable exhaust fan in a doorway to pull air through.
For exterior brick walls, check the outside. Clear leaves, dirt, or vegetation that blocks airflow at the base. Trim bushes that touch the wall. If the ground is soaked, place a fan outside to dry the lower courses. Always keep electrical cords and outlets away from water.
Monitor Moisture Levels
Brick dries unevenly. The surface may feel dry while the core stays wet. Use a moisture meter to check readings at several spots along the wall. Look for damp spots that darken the brick or cause efflorescence, a white salty residue. These indicate moisture is still present.
Check the wall daily for the first week. Press a plastic sheet against the brick and seal the edges with tape. If condensation forms on the plastic after a few hours, moisture is still escaping. Continue drying until the wall feels dry to the touch and no condensation appears.
When to Call the Pros
If the wall stays wet after a week of active drying, or if you see mold, peeling paint, or crumbling mortar, call in local water damage pros. They have industrial dehumidifiers and moisture meters that can handle deep saturation. They can also inspect for hidden leaks in pipes or the roof.
If the water came from a flood or sewage backup, do not attempt cleanup yourself. Contaminated water requires special handling. The pros can remove wet insulation, dry the structure, and check for damage behind the wall. For mold growth, a mold professional should assess before any repair work begins.
Before any restoration, have a water damage inspection done to understand the extent. This helps you decide what can be dried and what needs replacement. The pros use moisture mapping to find all affected areas, not just the visible surface.
- Remove wet carpets or rugs near the wall
- Drill small holes in drywall to ventilate the cavity
- Use a wet-dry vacuum to extract water from cracks
- Place fans at floor level to dry lower bricks
- Keep the room warm and dry for several days
Water damage does not wait
Call (425) 407-5186 any time, day or night, and describe what happened.
Call Now (425) 407-5186Frequently asked questions
How long does it take for a brick wall to dry?
It depends on how wet the brick is and the drying conditions. Surface moisture may dry in a few days, but deep saturation can take one to three weeks. Using fans and a dehumidifier speeds the process. Check moisture levels regularly to track progress.
Can I use a hair dryer or heat gun on the brick?
No, that is not recommended. High heat can cause the brick to crack or force moisture deeper into the wall. Better to use gentle heat from a space heater and steady airflow. Patience is safer than quick, intense heat.
Should I seal the brick after drying?
Wait until the wall is completely dry, which may take weeks. Sealing damp brick traps moisture and can cause damage. Once dry, you can apply a breathable sealer to protect against future water. Test a small area first to see how it looks.