Pebbledash is a tough and long-lasting wall finish, and if it’s done right, it can easily last anywhere from 20 to 40 years. That said, how long it actually holds up depends on a few things—like the quality of materials, the weather in your area, and how well you look after it.
If your home is exposed to heavy rain or strong sunlight, the elements can gradually wear it down over time. But with a little upkeep—like occasional cleaning and sealing—your pebbledash can stay looking great for decades.
Pebbledash isn't completely waterproof, but it does offer good protection against rain. The small stones help to deflect water, while the underlying mortar acts as a barrier to reduce moisture absorption. This makes it a durable choice for wet climates.
Painting pebbledash isn't always the best choice. The rough texture makes it tricky to get an even coat, and over time, the paint can start to chip or flake, especially if exposed to heavy rain or pressure washing. Plus, since the mortar or plaster underneath is porous, the paint may not stick well and could end up peeling or blistering.
Pebbledashing is an affordable way to finish exterior walls and works well on surfaces like brick, concrete, and stucco. The total cost depends on the size of the area being covered and the materials used. On average, you can expect to pay between £50 and £100 per square metre, including both materials and labour.
Yes, but it’s important to do it the right way. Over time, pebbledash can collect dirt and stains, but using a pressure washer can damage the surface and loosen the stones. The safest method is to gently scrub it with a soft brush and soapy water. For tougher stains, a diluted bleach solution can help—just make sure to rinse everything thoroughly to protect the render.
There are a few reasons why pebbledash might start to crack. Over time, it can naturally become brittle as it ages. Poor-quality materials or improper installation can also lead to cracking, especially if the original coat wasn’t applied correctly. Another common cause is movement in the underlying wall, which can put stress on the surface and cause cracks to appear.
Pebbledash is typically applied at a thickness of around 10-15mm. However, some people opt for a thicker layer—up to 20mm—for added durability and extra insulation. A thicker coat can provide better protection for the underlying wall and help improve the building’s energy efficiency.
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