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Repaired stucco requires regular inspections, cleaning to prevent mold or mildew build-up, and timely minor repairs to address hairline cracks. Applying protective sealants can also enhance longevity and maintain its appearance.

Masonry screws are the best option to be used on stucco. They’re thicker and made to penetrate harder surfaces like concrete and cinder blocks. Fluted masonry screws work the best because they create a stronger grasp thanks to the lines on their shafts. If you’re working on exterior stucco, use galvanized screws to prevent corrosion.

The average cost to repair stucco is about $1,600, with projects ranging from $250 for minor fixes to $6,700 for extensive work. The price is often calculated per square foot, typically costing between $60 and $120. Some professionals may charge an hourly rate of $40 to $50. The final cost depends on the extent of the damage, the type of stucco, your home's location, and whether there is underlying damage that also needs to be addressed.

Costs for specific repairs vary:

• Cracks: $8–$20 per square foot

• Holes: $250–$450 per hole

• Water damage: $30–$50 per square foot

• Chimney repair: $60–$120 per square foot

• Recoating: $4–$5 per square foot

While you may be able to patch small cracks yourself, it is recommended to call a professional for major repairs to ensure the job is done correctly.

Stucco is very challenging to DIY, so it’s always best to leave the work to professional stucco contractors. The same recommendation applies to painting a stucco house, which should be left in the reliable hands of a professional exterior painter. Inexperienced DIYers can make several critical mistakes during stucco application, such as:

• Failing to apply sufficiently thick layers for longevity and water resistance

• Uneven application

• Uneven texture across the exterior

• Mixing the stucco improperly, leaving a weak structure

• Failing to texture properly in between coats, leading to cracking and chipping