At S McConnell & Sons, we have been working with natural stone since 1960. Over the years, we have quarried, shaped, and installed stone for homes, public spaces, and commercial projects. With decades of experience and skilled craftsmanship, we understand how to care for stone properly.

In this guide, we explain how to clean natural stone paving using safe and effective methods. We will also share tips to help you protect your paving and keep it looking fresh for years.

Why Cleaning Natural Stone Paving Matters

Natural stone paving adds character and strength to any outdoor space. It is used for patios, paths, driveways, and garden areas. Over time, dirt, algae, moss, and stains can build up on the surface.

Regular cleaning helps to:

• Keep the stone looking bright and well cared for
• Prevent slippery surfaces caused by algae
• Protect the stone from long-term damage
• Extend the life of your paving

As a company that works with stone every day, we know that proper care makes a big difference. A simple cleaning routine can help your paving stay in great condition.

What You Need to Clean Natural Stone Paving

Before starting, gather the right tools and products. Using the correct materials will protect the stone surface.

You will need:

• A stiff brush or outdoor broom
• water
• stone cleaner
• A bucket
• A garden hose or watering can
• Optional: a pressure washer on a low Pressure setting

We always recommend using cleaners made for natural stone. Strong chemicals can damage the surface and affect the colour of stone and jointing.

Step by Step: How to Clean Natural Stone Paving

Cleaning your paving does not need to be complex. Follow these simple steps for the best results.

1. Remove Loose Dirt and Debris

Start by sweeping the area with a stiff brush. This removes leaves, dust, and loose dirt from the surface. It also makes the next steps easier.

Pay attention to joints between stones where dirt often collects.

2. Rinse the Surface

Use a hose or watering can to rinse the paving. This helps loosen dirt and prepares the stone for cleaning.

If using a pressure washer, keep the setting low. High pressure can damage the stone or remove jointing material.

3. Apply Relevant Cleaning Solution

Mix the stone cleaner as shown on the diluent instructions. Apply the solution to the paving using a brush or cloth. To determine what cleaning product is required you can contact our technical team for advice.

Always work in small sections so the cleaner does not dry too quickly.

4. Scrub the Surface

Use a stiff brush to scrub the stone gently. Focus on areas with stains, algae, or moss.

Do not use metal brushes, as they can scratch the stone. Depending on the cleaning solution, you may have to allow the cleaner to rest on the stone. Please see instructions on more bespoke cleaning solutions. 

5. Rinse Thoroughly

After scrubbing, rinse the paving well with clean water. This removes any leftover dirt.

Make sure no residue is left behind, as it can affect the appearance of the stone.

6. Allow to Dry

Let the paving dry naturally. Once dry, you will see the full result of your cleaning.

How to Remove Common Stains from Natural Stone

Different stains need different cleaning methods. Below are simple ways to deal with common problems.

Algae and Moss

Algae, moss and mildew should be treated with a specialist algae and moss remover. At S McConnell & Sons, we recommend Finalit No. 10 Algae and Moss Killer, which is designed to control algae, moss and mildew while helping to eliminate spores and mould growth. 

Oil and Grease

For grease, oil, milk, wax, candle wax and food residue stains, we recommend Finalit No. 11 Grease and Wax Remover. Fresh grease and oil stains may also respond well to Finalit No. 1 Intensive Cleaner, depending on the severity and age of the stain. 

Rust Marks

Rust stains should be treated with a dedicated rust remover. We recommend Finalit No. 8 Rust Solvent, which is specifically formulated to remove rust stains from natural stone surfaces without the need for harsh abrasive cleaning. 

Food and Drink Spills

Many common food and drink stains, including tea, coffee, red wine, fruit juice and soft drinks, can be effectively treated using Finalit No. 12 Stain Killer. For fresh spills, Finalit No. 1 Intensive Cleaner can also be an effective solution before the stain has had time to penetrate the stone. 

Can You Use a Pressure Washer on Natural Stone?

Yes, but care is needed. A pressure washer can help remove dirt quickly, but it must be used correctly. For best results use a steam washer set at a low pressure. 

We recommend:

• Using a low pressure setting
• Keeping the nozzle at a safe distance
• Avoiding direct pressure on joints
• Testing a small area first
• Using a steam pressure washer

Our experience in stone production and installation has shown that gentle cleaning methods work best. Too much pressure can damage the surface.

How Often Should You Clean Natural Stone Paving?

Regular maintenance helps keep your paving in top condition. We suggest:

• Sweeping weekly to remove debris
• Washing every few months
• Deep cleaning once or twice a year

The exact schedule depends on how the space is used. Areas around vegetation may need more frequent cleaning.

Protecting Your Natural Stone Paving

Cleaning is only one part of caring for natural stone. Protecting the stone will help maintain its appearance, durability and longevity. 

Seal the Stone

Applying a high-quality impregnating sealer can help protect against stains and water absorption while making routine cleaning easier. At S McConnell & Sons, we recommend using a breathable stone sealer, such as those from the Finalit range, which allows moisture vapour to escape rather than trapping it within the stone. 

Keep the Area Clear

Remove leaves, dirt and debris regularly. This helps prevent staining, reduces the build-up of organic matter and discourages the growth of moss and algae. 

Use the Right Products

Always choose products specifically designed for natural stone. Harsh chemicals can damage the surface and reduce its lifespan. We also recommend using breathable impregnating sealers rather than surface coatings, as sealing in moisture can encourage deterioration and erosion over time. The correct stone care products will help protect the stone while allowing it to perform naturally 

Why Choose S McConnell & Sons for Natural Stone

At S McConnell & Sons, we bring over 60 years of experience in natural stone. Our team combines traditional skills with modern technology to produce high quality stonework.

Our directors have decades of experience working with stone across many projects. From private homes to large commercial spaces, we have delivered strong and lasting results.

We take pride in every project. Our focus is on:

• High quality craftsmanship
• Customer satisfaction
• Skilled and motivated staff
• Efficient production
• Reducing environmental impact

We believe natural stone is not just for the past. It remains a strong and beautiful choice for modern spaces.

Final Thoughts on How to Clean Natural Stone Paving

Learning how to clean natural stone paving helps you protect your investment and keep your outdoor space looking its best.

Simple steps like sweeping, washing, and using the right products can make a big difference. Regular care helps prevent damage and keeps the stone safe to use.

At S McConnell & Sons, we have spent decades working with natural stone. Our experience allows us to guide customers on the best ways to maintain their paving.

If you are planning a new project or need advice on stone care, our team is here to help. We are proud to support homeowners, businesses, and developers with high quality natural stone solutions built to last.