Interior brick walls add character, warmth, and a timeless look to any space. Whether in a living room, kitchen, loft, or office, exposed brick can become a beautiful focal point. However, over time brick surfaces can collect dust, stains, soot, and grime that make them look dull and worn. Proper cleaning and restoration can bring the brick wall back to life and preserve its natural beauty.
In this guide, you will learn simple and effective methods to clean and restore an interior brick wall without damaging the surface.
Why Interior Brick Walls Need Cleaning
Brick is porous and, as such, it is a good absorber of dust, smoke, grease, and moisture. With brick walls, the surface is rough and has tiny holes where dirt can be collected overtime as compared to painted walls.
An interior brick wall may appear dirty or old due to a number of reasons:
- Dust buildup
- Smoke or soot stains
- Mold or mildew in humid areas
- Grease stains in kitchens
- Remnants of white powder known as efflorescence
- Old sealants or coatings
Frequent cleaning is necessary to keep the color and texture of the brick intact and also to enhance indoor air quality. Proper restoration of the wall also eliminates the damage to the brick and mortar in the long run.
Tools and Materials You May Need
Prepare the appropriate tools and materials before the cleaning process begins. The right supplies will simplify the task and protect the surface of bricks.
Typical equipment and supplies are:
- Vacuum cleaner brush attachment
- Soft or medium-stiff scrub brush
- Microfiber cloths
- Bucket of warm water
- Mild dish soap
- Baking soda
- White vinegar
- Spray bottle
- Sponge
- Brick/mortar cleaner (difficult stains)
- Protective gloves
Metal brushes or a very strong set of chemicals should be avoided as they may destroy the brick or mortar joints.
Step 1: Remove Dust and Loose Debris
The initial process of cleaning a brick wall of an interior is to remove the surface dust and debris.
Begin with a vacuum cleaner and a brush attachment. Vacuum the entire wall carefully, including the mortar joints. This gets rid of the loose dirt, cobwebs, and dust that is resting on the surface.
In the event of unavailability of a vacuum, you may clean off the dust using a soft brush or dry microfiber cloth. The reason behind this is that when a dirty wall is scrubbed using water, the dust may become muddy and may be even more difficult to remove.
It will be more efficient to take time and carefully eliminate loose debris to ensure the remainder of the cleaning process is more effective.
Step 2: Clean the Brick with Mild Soap Solution
The next thing to do after eliminating the dust is to wash the brick surface using a mild cleaning solution.
With a bucket of warm water, add a small amount of mild dish soap. Stir the mixture until it is a bit soapy.
Wet a sponge or soft scrub brush in the solution and scrub the brick in circular movements. Work in small parts from the top to the bottom in order to avoid dirty water dripping into clean areas.
Wipe with a moist sponge and not water. Excessive moisture may penetrate the brick and mortar.
After cleaning one area, dry it using a clean damp cloth to wipe off the soap.
This simple technique of cleaning is typically sufficient to eliminate the daily dirt and grime.
Step 3: Remove Stubborn Stains
Occasionally, interior brick walls acquire intractable stains which cannot be removed using soap. These can be grease, smoke, or deep discoloration.
A baking soda and water combination is a natural and effective solution. Prepare a dense paste and apply it on the stained part. Allow to rest 10-15 minutes and then brush lightly.
The second most useful trick is a combination of water and white vinegar in an equal portion in a spray bottle. Lightly spray the stained area and scrub it.
With especially difficult stains, use a commercial masonry or brick cleaner. Always ensure you use instructions of the manufacturer and first test the cleaner on a small hidden part so that it does not interfere with the brick color.
Step 4: Address Efflorescence
The white powdery material that occasionally appears on the surfaces of bricks is called efflorescence. It takes place when water within the brick causes deposits of salt to appear on the surface.
To eliminate efflorescence, begin by brushing with a dry stiff brush. In many cases, the powder may be easily removed without the use of water.
If some residue is left, wipe with vinegar and water. Excess moisture is to be avoided since water may revert efflorescence.
If the issue continues to reoccur, it can be a sign of a moisture problem, which should be resolved.
Step 5: Restore the Brick’s Natural Appearance
The brick wall may look much better after cleaning. Nevertheless, it may be improved in its look and stability with the help of restoration.
A method of restoring the brick is through the application of a masonry sealer. A breathable brick sealer prevents dust and stains as well as moisture, and the moisture that is trapped in the brick is released.
The other alternative is to employ a brick enhancer or brick conditioner. These products enhance the texture of the natural color of the brick a little bit.
Repointing can also be required in case the mortar joints are broken or worn out. This entails the elimination of damaged mortar and the application of new mortar in order to make the wall stronger and enhance its appearance.
Maintenance Tips for Interior Brick Walls
After cleaning and restoring your brick wall, regular maintenance will ensure that it looks beautiful for a number of years.
The following are some useful tips to maintain:
- Clean the wall after every few weeks with the help of a vacuum or soft brush.
- Wipe stains immediately.
- Avoid harsh chemicals or acidic cleaners.
- Maintain an equal amount of humidity to avoid mold or efflorescence.
- Use the application of brick sealer every few years.
Regular cleaning will avoid the accumulation of dirt and will minimize deep cleaning.
