Render looks great when it’s clean, and shows it when it isn’t.
Smooth, light-coloured render gives a home a crisp, modern finish. The downside is that it shows dirt, streaks and green or black growth more than most surfaces do.
Render cleaning is about lifting that staining and discolouration so the walls look fresh again, using an approach that suits the type of render and its condition.
Common causes of render discolouration
Algae & organic growth
Green and black patches, often on shaded or north-facing walls.
Run-off staining
Streaks below window sills, gutters and downpipes where water runs down.
Everyday dirt
Traffic grime, dust and pollution that gradually dull the finish.
Nearby plants & trees
Shade and debris that keep walls damp and encourage growth.
Why surface-appropriate cleaning matters
Not all render is the same. Traditional sand and cement, coloured through-render, silicone and other modern systems all behave differently, and some finishes need a much gentler approach than others.
The cleaning method should always suit the render. If you know what type of render you have (or who installed it), let us know when you enquire. If not, photos help us understand what we’re working with.
The benefits of render cleaning
- A brighter, fresher exterior. Clean render can lift the look of the whole property.
- Better kerb appeal. Handy if you’re selling, letting, or simply want your home to look its best.
- Dealing with growth early. Tackling organic growth before it really takes hold keeps things more manageable.
