Water damage to plaster walls can significantly compromise your property’s structure and aesthetics. Plaster walls can swell, crack, or even develop mold if not treated promptly when exposed to water.
At PuroClean of Rowland Heights, we specialize in restoring plaster walls affected by water damage, ensuring the integrity of your building while preventing long-term issues. Identifying plaster wall water damage early is critical to minimizing restoration costs and protecting your home or commercial space.

Due to its porous nature, plaster is prone to mold, bubbling, swelling, and cracking when exposed to moisture.
Detecting and Assessing Plaster Wall Water Damage
The first step in addressing plaster wall water damage is detection and assessment. Signs of water damage may include discoloration, bubbling, peeling paint, and soft spots on the wall surface. In more severe cases, plaster may begin to crack or separate from the lath underneath.
At PuroClean of Rowland Heights, our trained technicians use advanced moisture detection equipment to locate the extent of the water damage, even if it’s hidden behind walls. By thoroughly assessing the damage, we can create a targeted restoration plan that minimizes disruption and maximizes results. The sooner water-damaged plaster is identified, the easier it is to restore without extensive replastering.

Moisture meters can detect wetness through a variety of building mediums.
Drying and Repair Techniques for Plaster Walls
Once the extent of the damage has been identified, proper drying is essential. Plaster is highly absorbent, making it crucial to dry the surface and the internal structure. Our team at PuroClean employs professional-grade dehumidifiers and air movers to dry plaster thoroughly and prevent secondary damage, such as mold growth.
Once dried, repairs begin. Depending on the damage, some areas may only require patching, while severely damaged sections may need to be replastered. Specialized fillers and joint compounds are applied to smooth the surface if cracks or buckling are present. At PuroClean of Rowland Heights, we carefully restore plaster walls, ensuring they return to their pre-damaged condition and are ready for repainting and finishing.
Replastering and Finishing After Water Damage
Complete replastering may be necessary in cases of severe plaster wall water damage. This process involves removing the damaged plaster and applying new layers. Plaster must be applied in multiple coats and allowed to dry slowly to avoid cracking.
After replastering, finishing steps, such as sanding and painting, are crucial for blending the repair with the rest of the wall.

Plaster should be applied in layers, and each layer should dry slowly.
Preventive Strategies for Moisture Control
Preventing future water damage is a key aspect of plaster wall restoration. Addressing the source of the water intrusion is crucial to avoiding recurrent issues. Moisture control should be prioritized after restoration, whether it’s repairing leaky pipes, improving drainage around the property, or installing proper ventilation.
PuroClean of Rowland Heights also recommends regular inspections of your plaster walls for signs of moisture buildup. Investing in moisture barriers or waterproof paint can provide additional protection. Preventive maintenance ensures your plaster walls remain strong and intact for years to come.
Use this FEMA webpage as a starting point for remedying moisture damage and mold in your home: Mold: Problems & Solutions.
Water Damage Experts in Rowland Heights
Water damage to plaster walls requires immediate attention to prevent further deterioration. At PuroClean of Rowland Heights, we specialize in comprehensive water damage restoration. Our certified technicians use industry-leading equipment and techniques to restore your walls to their pre-loss condition.
For more information about our water damage restoration services, visit PuroClean of Rowland Heights or call us at (626) 923-9992. Let our experts help you restore your home or business today.