Cleaning is about safety as well as looks
Moss and algae can make surfaces slippery in wet weather. A proper clean improves kerb appeal, but it also makes paths, patios and driveways easier to use.
Some finishes need extra care
Block paving may need re-sanding after cleaning. Older stains, failed joints and black spot may need a separate treatment rather than a quick wash.
Photos help price it fairly
A few clear photos of the surface, access and drainage points usually make it much easier to give useful guidance before a visit.