Patio Slabs Stained
Discoloured or stained patio slabs from algae, moss, oil, rust, or other marks that look unsightly.
What Is Causing This?
- 1Algae and moss growing in damp, shaded areas
- 2Oil or grease spills soaking into porous stone
- 3Rust from metal furniture or plant pot rings
How Urgent Is This?
This is a cosmetic issue. It is not causing damage and can be addressed in your own time.
What Needs to Be Done
A paving specialist will apply appropriate stain removers, carefully pressure wash the surface, and may seal the slabs to protect against future staining.
How Much Will It Cost?
National average estimate
Labour: £333 – £1,067 | Materials: £200 – £933
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Prices are estimates based on typical UK rates. Actual costs depend on the specific issue, accessibility, and your location. All quotes from tradespeople on Tradesfolk are completely free.
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Ask a QuestionPlanning Permission Guidance
Some fixes for this problem may require planning permission or building regulations approval. Check if your project needs permission:
How to Prevent This
Seal porous natural stone after laying. Use drip trays under BBQs and plant pots. Clean spills promptly before they soak in.
Related Problems
Other Paving Specialist Problems
Individual patio slabs or sections of paving that have dropped, creating an uneven and sometimes dangerous surface.
Cracks appearing in paving slabs, concrete paving, or natural stone, sometimes splitting entire slabs.
Weeds pushing up through the joints between patio slabs or paving stones.
Water pooling on the patio surface or not draining away after rain, creating puddles and algae growth.