A sandstone patio adds natural charm to your outdoor space, but over time, dirt, algae, and stains can take their toll. If you’re wondering how to clean sandstone patio areas without damaging the stone, follow our simple, professional guide below.
At RJB Paving UK LTD, we take pride in delivering reliable, high-quality results for every project – and that includes helping you care for your outdoor surfaces.
Why Clean Sandstone Patios Regularly?
Sandstone is a naturally porous material, making it prone to absorbing moisture, dirt, and grime. Without routine maintenance, this can lead to:
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Discolouration and staining
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Slippery surfaces due to moss or algae
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Long-term surface damage
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Reduced kerb appeal of your property
What You’ll Need
Before you begin, gather these essential tools and materials:
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A stiff-bristle brush or broom
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A bucket of warm water
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Mild detergent or stone-safe cleaner
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A garden hose or pressure washer (low setting)
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Optional: baking soda and white vinegar for stubborn stains
How to Clean Sandstone Patio – Step-by-Step
Step 1: Remove Loose Debris
Start by sweeping the entire patio to get rid of:
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Leaves
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Twigs
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Loose dirt and dust
This prevents surface scratching during the cleaning process.
Step 2: Apply a Cleaning Solution
Mix warm water with a mild detergent in a bucket, then:
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Pour or sponge the solution onto the sandstone
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Let it sit for around 10–15 minutes
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Avoid harsh chemicals that could damage the stone
Step 3: Scrub the Surface
Use a stiff brush and scrub in circular motions:
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Focus on stained or discoloured areas
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If using a pressure washer, ensure it’s on a low setting to avoid erosion
Step 4: Rinse Thoroughly
Once you’ve scrubbed the entire surface:
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Rinse the patio with clean water using a garden hose or pressure washer
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Ensure all soap residue is fully removed
Step 5: Treat Stubborn Stains
For extra-tough marks:
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Mix baking soda with water to form a paste
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Alternatively, use diluted white vinegar
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Apply, leave for 5–10 minutes, then scrub and rinse
How Often Should You Clean It?
To keep your sandstone patio in top condition, aim to clean it:
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At least twice a year – ideally spring and autumn
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More frequently in shaded or damp areas prone to moss and algae
Extra Tip: Seal the Stone
After cleaning, consider applying a protective sandstone sealer:
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Helps prevent future staining
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Protects against weathering
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Makes future cleaning much easier
Need Help with Your Patio? Trust RJB Paving UK LTD
With years of experience and a reputation for reliable, professional service, RJB Paving is your trusted partner for all things paving. Whether you’re after maintenance advice or need a complete patio overhaul, we’re here to help.
Get in touch with our friendly team today to learn more or request a free quote.
