Before painting, addressing wall stains is crucial for achieving a smooth finish. Various factors can affect the best approach, such as the type of stain—whether it's water damage, grease, or mold. Each may require different prep methods, from simple cleaning to using specialized primers. Additionally, consider the materials you'll need, like sponges, cleaners, or sealants, and the potential costs involved. Don't forget about safety precautions, especially when dealing with mold. Curious about the best techniques or products for your specific situation? Ask Improvi.ai for personalized guidance!