Your stucco can literally last for hundreds of years, but only if you take good care of it! Rinse, scrub and maintain your stucco once a year to keep it in great shape and prevent a costly replacement.
Safety Note: Depending on how much stucco siding you have, you may need to use a ladder to properly rinse and inspect all of it. Always observe proper ladder safety if you do this.
Rinse your stucco. Use your garden hose to rinse your siding. It’s best to start at the bottom, work your way to the top and then work your way down again so that dirty water doesn’t streak or get absorbed into the stucco, which is porous and vulnerable to moisture. Avoid using a pressure washer or a high pressure hose attachment, which can damage the stucco material. Note: If one or all of your house’s walls are stucco, don’t feel like you need to climb around and thoroughly rinse every single spot – that’s a lot of work, and it really isn’t necessary unless you want to have spotless siding. Just cover the main areas that are convenient for you to reach.
Check for cracks and holes. Stucco is vulnerable to cracking, so visually inspect the wall as you rinse. If you find any small cracks or holes, you can repair them easily with a tube of stucco crack repair, which costs about $4 at your local hardware store. Only use this material if you are confident in your steady hand and if color matching won’t be a problem. You don’t want your stucco to look like a “patchwork” quilt. If you see holes or cracks larger than ½ inch wide, consult a professional to have them repaired. This may be indicative of a larger problem with your stucco.
Repair peeling paint. If your stucco is painted, you need to repair areas that are peeling. Not only does peeling paint look a little grungy, but it can ruin the waterproof seal on your stucco! Remove any chips you find and retouch the paint to keep your stucco siding protected.