Get matched with top stucco pros in Mariposa, CA

A standard drill will work just fine if you’re drilling small holes, and only a few of them. But anything with a diameter larger than 3/8 inch is best done with a hammer drill, since it is stronger, faster, and also makes your drill bits last longer. While you don’t absolutely need a hammer drill for stucco, it is a worthy investment if you think you might drill more holes down the road.

To repair damaged exterior stucco, you’ll first remove all loose and crumbling material from the damaged area. You then need to thoroughly clean the area and dampen it to ensure proper bonding. After that, you’ll apply a bonding agent to the repair area, then apply new stucco in layers, allowing for curing time between each layer. The final coat should be textured to match the surrounding stucco pattern as closely as possible. Once fully cured, the repaired area can be painted to match the rest of the wall if needed.

If your windows are losing efficiency from wearing out or experiencing leaks on rainy days, it may be time to consider replacing them. Window replacement costs run between $180 and $410 per window but may be on the higher end for homes with stucco siding since stucco will likely require more time and special tools for replacement.

Failing to repair damaged stucco can lead to significant problems. Cracks can grow and deepen, allowing water and moisture to get behind the stucco. This moisture intrusion can cause water damage, structural issues, and mold or mildew growth. Delaying repairs will likely cost more in the long run as the damage worsens, so it's best to repair your stucco as soon as you notice any signs of damage, such as cracks, holes, or discoloration.