Cleaning Brick and Stone: 7 Things to Avoid When Cleaning

Cleaning stone and brick surfaces can significantly enhance your home’s appearance and longevity. However, choosing the wrong cleaning methods or products can cause irreversible damage. To help you maintain the beauty of your brick and stone, here are seven things you should avoid using when cleaning these surfaces.

1. Harsh Acidic Cleaners

While it might seem effective for removing stains, harsh acids such as muriatic acid or strong commercial masonry cleaners can etch and deteriorate brick and natural stone surfaces. Acidic cleaners can weaken the mortar joints and cause discoloration, leading to costly repairs down the line.

2. Steel Wool or Abrasive Pads

Although steel wool is a good option for tough grime, it can scratch and damage the surface of brick and stone. The abrasiveness can remove the protective outer layer, making the surface more vulnerable to dirt and water infiltration.

3. High-Pressure Power Washers

Using a high-pressure power washer may seem like an efficient cleaning method, but it can be too powerful for brick and stone surfaces. It can erode and chip away the mortar and surface material, leading to structural integrity issues.

4. Chlorine Bleach

Chlorine bleach might temporarily whiten stains, but it can also weaken the material over time. It can cause discoloration, and when combined with other cleaning agents, may produce harmful fumes. Bleach is also harsh on surrounding vegetation and landscaping.

5. Commercial Sealers and Waterproofers (Without Proper Research)

Applying sealers or waterproofing products without confirming compatibility with your specific brick or stone type can trap moisture inside, leading to spalling and deterioration of the material. Always research or consult a professional before sealing.

6. Ammonia-Based Cleaners

Ammonia is a strong cleaner that can leave residues and cause discoloration, especially on natural stone surfaces such as limestone or marble. It also reacts with other residues, potentially creating hazy or stained surfaces.



7. Wire Brushes

Similar to steel wool, wire brushes are too abrasive for delicate brick and stone surfaces. They can scratch the surface and dislodge small particles, which may accelerate deterioration over time.

Quick Reference Chart: What to Avoid When Cleaning Brick and Stone

Final Tips for Safe Cleaning



• Always test any cleaner on a small, inconspicuous area before applying broadly.
• Use gentle cleaning methods, such as a soft brush or low-pressure water.
• Consult a professional for stubborn stains or when in doubt about specific products.
  

Maintaining your brick and mortar surfaces doesn’t require harsh chemicals or aggressive tools. By avoiding these seven items, you help preserve the natural beauty and structural integrity of your masonry for years to come.

Do You Have Questions About Brick or Stone in Chicagoland or Northwest Indiana?

If you own a brick or stone structure in Frankfort, Homewood, Chicago Heights, IL, or Munster, IN, contact Custom Brick & Stone with questions about cleaning, tuckpointing, or rebuilding. We do it all when it comes to brick and stone!