Over time renders, painted surfaces and most other building or natural materials can discolour and look dirty. This is caused by either general grime from roads or algae which grows in the small voids and spreads. It is not advised to use pressure washers on renders especially K Rends or Weber products as it can damage them.
At Bear Cleaning Ltd we use a soft wash system which applies a fungicidal wash, which almost immediately removes the spoors or stains, leaving the render looking fresh and new. Any residue will disappear with weathering over a short space of time.