When it comes to wall rendering, inevitable mistakes can cause serious problems. From aesthetic issues such as cracking and uneven surfaces to more serious structural problems like dampness and mould growth, these mistakes can significantly impact the longevity of your walls. This article will examine three common wall rendering errors that should be avoided.

At Northampton Plastering Pros, we understand the importance of achieving a flawless wall rendering finish. Unfortunately, we have seen many homeowners attempt to render their walls on their own, and they often need to correct mistakes that compromise the quality of the final product. Here are three common wall-causing errors to avoid.

Failed to Prepare the Surface Properly

One of the most common mistakes in wall rendering is not preparing the surface properly. Proper preparation is critical to ensuring a successful and long-lasting render. The surface should be clean and free from loose debris, dirt, or dust. Removing any existing coatings or paint that may hinder the bond between the render and the wall is essential.

Another critical step in preparing the surface is ensuring it is moistened before applying the render. It helps prevent premature drying of the mix and aids in better adhesion to the substrate. Additionally, it’s essential to check for any cracks or holes in the wall that need repairing before applying render.

Please prepare surfaces correctly to avoid a poor-quality finish that will not last as long as intended. Therefore, preparing the surface will save both time and money in repairs.

Using the wrong type of render

One of the biggest mistakes homeowners make when rendering their walls is using the wrong render type. Many different types of renders are available on the market, each with a specific purpose. Choosing the wrong kind of render for your project can lead to significant problems down the line.

For example, an interior render on an exterior wall will not hold up to harsh weather conditions like wind and rain. As a result, it can lead to cracks and other damage over time. On the other hand, if you use an exterior render on an interior wall, it may not adhere properly and could crack or peel off over time.

In addition to choosing the right type of render for your project, it’s also essential to apply it correctly. For example, suppose you need clarification on which render type is best for your project or how to use it correctly. In that case, it’s always best to consult a professional rendering contractor with experience.

Inadequate curing time

Inadequate curing time is one of the most common wall rendering mistakes. It involves not allowing the rendering material enough time to dry and settle appropriately before applying a finishing coat or paint. Rushing this process can lead to cracking, peeling, and an unstable surface that will not last long.

To prevent this mistake, following the manufacturer’s instructions for curing times is essential. In addition, factors such as temperature, humidity, and thickness of the rendering material can affect how long it takes to cure fully. Therefore, it is crucial to monitor these conditions during the curing process and adjust accordingly.

Additionally, not rushing or cutting corners when applying wall rendering materials is essential. Shortcuts may seem like a good idea initially, but ultimately lead to more significant problems. By taking your time and allowing adequate curing time between each layer of rendering material, you can ensure that your walls will be solid and durable for years to come.


Avoiding common wall rendering mistakes is crucial to achieving a successful project. Choosing the right wall rendering company will ensure you get the best results. Contact us today to learn more about our wall rendering services.

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