No, pressure washing your house won’t ruin the paint. In fact, it is a preferred method of cleaning and maintaining the exterior of your home among professionals such as painters, siding installers and maintenance crew members. Pressure washing is an effective way of removing dirt, mold, mildew and other contaminants that can build up over time on your home’s exterior surfaces. It also helps maintain the integrity of sealants used to protect against water damage. When done correctly by experienced professionals with high-quality equipment tuned for optimal performance with proper nozzle pressure settings, low flow rates and optimal temperatures/chemicals (if necessary), there will be no damage to the existing paint or underlying layers on the walls or other areas where it is applied. The more modern type hot water equipment does an even better job due to its higher temperatures and ability to reduce grease and oil residue in order for a thorough cleaning job without any damage occurring. Special thanks to our friends at Huskey’s Paint for sharing this information about how pressure washing affects house paint!