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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.

The best way to assess that your stucco needs repair is to inspect it, both visually and physically. If you notice cracks, chips, or staining, that’s a good indication that your stucco could use some TLC by a professional. Additionally, if you touch an area that feels soft and has a little “give,” you should consider repairing it as soon as possible to avoid further damage, both to additional stucco spots and to your home’s structure. 

Stucco will dry in two to three days, but you should wait one to two months to allow it to cure fully before you paint it. The curing process is slow, but leaving the material exposed to air and natural moisture will help it reach its maximum strength. If you live in a hot, arid climate, wait a month before painting. Wait two months before painting if you live in a more moderate or wet climate.

Yes, you can apply the stucco yourself, but it is a time- and labor-intensive project, especially on the exterior of a whole house. DIY stucco is better suited for repairing stucco siding or siding a smaller building, such as a shed or garage. Since most of the cost of stucco siding goes to labor, you can cut down significantly on the total if you’re up for the challenge.