Stucco adds beauty, value and longevity to homes, but only when it’s repaired properly. Repairing stucco correctly requires knowledge of best practices, high-quality materials and careful preparation of surfaces for color-matching and texture matching.

Stucco damage is most commonly caused by moisture intrusion. Warning signs include cracks, stains and changes in texture or appearance. Contact Stucco Repair Charleston SC for professional help.
Stucco is a beautiful, durable and long-lasting building material that requires regular upkeep to maintain its appearance. However, over time, stucco walls can develop cracks and holes that compromise the integrity of the structure. If left unrepaired, these issues can escalate and result in expensive repairs.
Performing routine inspections and gentle cleanings can help you identify these issues early, before they worsen. Inspecting your home during both warm and cold weather will allow you to see changes in the walls caused by contraction and expansion due to seasonal temperature fluctuations. A small superficial crack observed on a hot sunny day may turn into a much larger problem when colder temperatures return.
Before beginning any stucco repair, you should clean the entire surface to remove dirt, dust and other debris. This can be done with a soft brush or by using a pressure washer set to a low water pressure. In addition, any mildew or mold that has developed must be removed prior to painting. This can be accomplished by using a solution of bleach and water or a special mildew remover designed for use on stucco.
Once your home is cleaned, you should cover any wood lath that is exposed with grade D building paper to create a moisture barrier. Depending on the product used, this can require several layers to achieve a solid barrier. Then, once the lath is covered, you should begin patching any areas of damaged or crumbling stucco. This can be done by mixing your own stucco patch and following the manufacturer’s instructions, or by purchasing pre-mixed patching stucco. Either way, you will also need a wire brush and a hammer to chip away any loose or damaged areas of the stucco.
When you’ve finished patching, you will need to let the patch dry for a few days. Usually, the time required for drying will be listed on the package. While you’re waiting, you can prep your paint job by lining windows, doors and other immovable items with painters tape, placing drop cloths where necessary and masking any fixtures or plants that will need to be protected from the dust created during the repair process.
Repairing Cracks
Stucco cracks can be repaired using various methods. For hairline cracks, an elastomeric caulking is often used as it allows for expansion and contraction of the stucco without the formation of additional cracks. For larger cracks, a combination of caulking and fiberglass mesh may be used to strengthen the area and prevent future deterioration.
To begin, the damaged area must be cleaned to remove dirt, debris and algae from the cracks. This will ensure proper adhesion of the new stucco patching compound.
Next, a bonding agent should be applied to the affected surface. This helps ensure that the repair adheres well and will not become weakened over time. Then, a metal lath should be installed to support the new stucco patching compound and prevent it from pulling away from the underlying structure.
Once the lath is installed, it should be screwed or nailed to the underlying structure to ensure that it is tightly secured. If the structural damage is extensive, then it may be necessary to underpin the house with push pier or helical pier systems to allow for practical maximum recovery and stabilize the building.
Finally, a stucco repair compound should be mixed and applied to the repaired area. It is important that the repair compound be properly mixed to achieve a smooth consistency. If it is too runny, it will not adhere to the existing stucco; if it is too thick, it will be difficult to apply evenly.
After applying the repair compound to the cracked area, a rubber float can be used to press it into place. It is important to spread a consistent 1/4 inch of material over the crack, working it into the surrounding surface. After the repair is complete, it should be smoothed and textured to match the existing stucco.
Once the crack is repaired, it should be allowed to cure for the recommended amount of time before being painted. It is important to follow the manufacturer’s instructions when curing, as this will help ensure that the repair is strong and durable. If not, the crack is likely to recur and may be more severe than it was initially.
Patching
When a crack is spotted in your stucco, it’s important to determine the extent of the damage. Often, hairline cracks are cosmetic and simply the result of temperature changes or minor settling of the structure. However, if the cracks are wider or the walls are crumbling, this may indicate a bigger issue and the need for remediation.
Thoroughly cleaning the cracked area is a vital first step in the repair process. This helps to ensure that the bonding agent and repair compound will adhere well to the surface. In addition, removing loose debris can help to prevent further damage during the patching process. Moisture can interfere with the adhesion of materials, so it’s also necessary to ensure that the crack is completely dry before continuing.
Once the surface is clean, a second layer of the repair compound should be applied to the crack. This is especially important if the crack is deep, as it can help to reinforce the integrity of the wall and make the repairs more durable. Using a trowel to apply the compound is crucial, as it helps to ensure that the crack is filled completely and that there are no air pockets that could weaken the repair over time.
When the second coat is applied, it’s important to smooth it thoroughly to ensure that the repaired area blends seamlessly with the existing surface. This helps to ensure that the finished product looks beautiful and will stand up to the elements. Finally, it’s necessary to allow the repair compound to cure properly. This can take some time and can vary depending on weather conditions, but it’s important to follow the manufacturer’s instructions to ensure that the repaired surface is strong and durable.
Repairing cracks in your stucco can be a complex task, but the proper steps can ensure that your repairs are long-lasting and effective. Remediation is a crucial service that can help to protect your investment and keep your home safe and secure. If you’re concerned about the condition of your stucco, don’t hesitate to contact us for a free inspection and estimate!
Remediation
The first step in the repair process involves cleaning and clearing the area of the damaged stucco. This is essential to ensuring that the bonding agent and repair compound adhere properly to the surface. Using a wire brush and cleaning solution will help to remove any dirt, mildew, or other debris that might be present on the surface. Skipping this step can result in a weak repair that fails to hold up over time.
Once the surface is cleaned, it’s important to assess the severity of the damage. Small hairline cracks are typically cosmetic and can be repaired with caulking. However, larger cracks can indicate that there are underlying structural problems with the stucco installation that require remediation.
It’s also important to determine what caused the damage in order to decide which type of repairs are required. Moisture intrusion, for example, can cause the stucco to separate from its base layer. In this case, it’s necessary to conduct a full stucco remediation in order to correct the problem and prevent future damage.
Depending on the extent of the cracking, a variety of repair methods can be used to fix the issue. For smaller cracks, it’s often easiest to use a paintable high-quality caulking material to fill the gap. This method is simple and effective, providing a long-lasting solution to minor cracking in the stucco.
For more serious issues, it’s sometimes necessary to use a stucco patching material to fill in the cracks. These products are made of flexible, acrylic-based materials that are ideal for repairing cracks that are caused by temperature fluctuations or minor structural movement. Once the patching material is applied, it’s important to smooth the surface to ensure that it blends with the surrounding stucco texture.
When using a stucco patching material, it’s important to follow the manufacturer’s instructions for application. In some cases, misting the patched area with water can help to enhance durability and adhesion. Finally, it’s crucial to allow the patched area to fully cure before painting. If you aren’t sure which type of repair is needed, it’s always best to consult a professional. An experienced stucco contractor will be able to provide you with an accurate assessment of the damage and recommend the appropriate service.