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

Quikrete will set without mixing. The process of pouring dry concrete into your concrete form and then adding water is called dry pouring. While this method makes pouring concrete simpler and easier, it reduces its strength and durability. It can be a viable option for small, decorative concrete pavers for walkways or for setting fence posts, but it’s not ideal for pouring slabs that will bear any significant amount of weight.

Stucco repair can best be described as a patch. It involves identifying the problem and fixing that specific damage with additional stucco. If no mold infiltration or an underlying leak is causing the damage, repair is most likely all you need. 

Remediation, on the other hand, involves removing the existing siding, fixing the underlying cause of the damage, and then reapplying stucco siding for that wall. It’s a more permanent fix that takes longer to complete and, hence, comes with a steeper price tag than repair.

When cleaning stucco siding, it is recommended to use a pressure washer with a psi (pounds per square inch) between 1,500 and 2,000. This range provides sufficient power to remove dirt and grime without causing damage to the stucco surface. It's important to avoid using excessive psi as it can chip or crack the stucco. 

Using a wider spray nozzle and keeping a safe distance of about seven to 10 feet from the siding helps ensure a gentle and effective cleaning process. Always follow the manufacturer's guidelines and adjust the psi accordingly based on the condition of your stucco and the specific requirements of your pressure washer.