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Expert Guide to Cleaning Indian Sandstone Patio

Table of Contents

Indian Sandstone patio before and after cleaning
Indian Sandstone patio before and after cleaning


Indian sandstone, renowned for its rich, warm colours and durability, is a popular choice for outdoor paving and patios. However, maintaining the aesthetic beauty of Indian sandstone slabs and paving requires regular cleaning and care. The Great British weather, known for its moisture and unpredictability, can lead to the accumulation of dirt, moss, algae, and stains on the sandstone surface. Regular cleaning not only preserves the stone’s appearance but also extends its life, making it a crucial aspect of sandstone maintenance.

Understanding Indian Sandstone

Clean indian sandstone paving
Clean indian sandstone paving

What is Indian Sandstone?

Indian sandstone is a natural stone, celebrated for its strength and varied colour palette. It is commonly used in various forms, including Indian sandstone paving slabs, patios, and garden paths. Each piece of stone is unique, with patterns and hues that add character to outdoor spaces.

Characteristics of Indian Sandstone

This natural stone is known for its porous nature, making it susceptible to absorbing water and stains. The varied colours of Indian sandstone, from beige to grey, can fade or change over time, especially under harsh weather conditions.

Understanding these characteristics is crucial for selecting the appropriate cleaning methods and products to maintain the stone's natural beauty.

Cleaning Techniques

Traditional Methods

Regular cleaning using a stiff broom and soapy water made from regular washing up liquid, is an effective way to maintain its natural beauty. This gentle method is ideal for Indian sandstone paving slabs, ensuring they remain clean without risk of damage.

Pressure Washing

Using a pressure washer to clean Indian sandstone slabs is an effective cleaning method. It's important to use the pressure washer on a low setting to avoid damaging the porous nature of the sandstone paving and slabs. This method can efficiently remove surface debris, moss, and green algae from Indian sandstone patios and walkways.

Power Washing

A power washer, utilising high-pressure hot water, provides a more intense and delicate clean compared to a standard pressure washer. Hot water power washing is an effective deep-cleaning method which can is better than pressure washing at breaking down tough grime and stains, making it a suitable option for rejuvenating Indian sandstone slabs and paving areas. The incorporation of hot water allows surfaces to be cleaned using less pressure which helps to protect the integrity of the stone.

Steam Cleaning

Steam cleaning is a gentle yet effective method for cleaning surfaces, especially suitable for delicate surfaces where high-pressure cleaning methods are not advisable. This technique uses high-temperature steam to clean and sanitise surfaces without harsh chemicals. This approach relies on the power of the steam to clean surfaces and not brute for force, as the previous two techniques do, providing the most delicate clean when it comes to techniques involving the use of pressure. Superheated steam Vs High Pressure Cleaning.

Soft Washing

Soft washing is an excellent low-pressure gentle alternative for cleaning surfaces and is particularly effective for surfaces sensitive to high-pressure cleaning. This method combines gentle cleaning solutions with minimal pressure, ensuring the Indian sandstone slabs and patios are thoroughly cleaned without damage. Sodium Hypochlorite Patio Cleaning.

Cleaning Indian Sandstone Step by Step

sandstone cleaning
Sandstone cleaning

Step 1: Safety and Preparation

  • Gather Necessary Equipment: Collect all tools and materials needed, including a stiff brush, pressure washer or power washer, cleaning solutions, and protective gear.

  • Clear the Area: Remove items such as garden furniture and plant pots from the area to ensure easy access for cleaning.

Step 2: Initial Cleaning and Assessment

  • Sweep the Surface: Thoroughly sweep the area to remove loose dirt and debris, making it easier to identify any problem areas like stains or algae growth.

  • Identify Problem Areas: Pinpoint spots with stains or algae that might need extra attention during the cleaning process.

Step 3: Choosing Your Cleaning Technique

  • Select a Cleaning Method: Decide on the most appropriate cleaning technique based on the condition of your Indian sandstone.

  • Prepare Your Cleaning Solution: Mix your chosen cleaning solution, whether it’s a simple soap mixture with warm water or a specialised cleaning agent, according to the manufacturer's guidelines.

Step 4: Cleaning Process

  • Apply Your Cleaning Solution: Prior to commencing cleaning, apply your cleaning solution.

  • Apply the Chosen Technique: Implement the selected cleaning method, ensuring even coverage across the entire Indian sandstone surface.

Step 5: Post-Cleaning

  • Rinse Thoroughly: After cleaning, rinse the surface with clean water to remove any remaining cleaning agents, debris and dirty water.

  • Allow to Dry: Let the Indian sandstone dry completely, especially if you plan to seal the stone for additional protection.

Step 6: Regular Maintenance

  • Schedule Regular Cleaning: Establish a routine for cleaning your Indian sandstone based on the efficacy of your chosen method and the specific needs of your paving or patio.

Removing Stubborn Stains

Clean sandstone paving
Clean sandstone paving

Sandstone can be prone to stains, such as those caused by moss, algae, or black spots. For these challenging areas, a diluted bleach solution can be effective.

Mix equal parts bleach and water, apply it to the stained areas, and let it sit for a few minutes to break down the stains. Scrub gently with a stiff brush and rinse thoroughly with clean water.

Sodium Hypochlorite is also known as bleach but is a lot stronger than typical house hold bleach. Check out our Sodium Hypochlorite Patio Cleaning article.

Always perform a patch test first to ensure the solution does not discolour the sandstone. Alternatively, purchase a cleaning product that doesn't contain a bleaching agent.

Preventive After Care

Preventive care is essential for reducing the frequency of intensive cleaning. Regular sweeping the surface can prevent the build-up of leaves, dirt and debris.

Tackle spills and stains immediately to prevent them from setting in. Additionally, keeping an eye out for weeds and promptly remove any growing between the slabs to maintain the aesthetics and integrity of the sandstone paving.

If weeds do appear this is a clear sign that your joints are deteriorating and need addressing promptly to prevent further damage that could lead to a very costly repair bill.

Professional Cleaning and Maintenance

When to Consider Professional Services

While regular DIY maintenance is crucial for Indian sandstone care, certain situations call for professional cleaning services. This is especially true for deeply ingrained stains or when dealing with large or particularly neglected areas.

Professional services use specialised equipment and advanced techniques that can effectively clean without causing damage to the sandstone. They can also provide expert advice on ongoing maintenance and care specific to your sandstone type.

For those seeking a comprehensive and hassle-free approach to maintaining their Indian sandstone, professional patio cleaning services are an excellent option.

These services ensure that your Indian sandstone remains a stunning feature of your outdoor space, contributing to the overall appeal and value of your property.

Check out our full range of professional patio cleaning services to keep your Indian sandstone slabs in top condition.


Maintaining the natural beauty of Indian sandstone requires regular and careful cleaning. Understanding the specific needs of this natural stone and employing the right cleaning techniques can ensure your paving, slabs, and patios stay in pristine condition.

For those looking for professional care, a range of patio cleaning services are available to provide expert maintenance. Remember, the key to preserving the beauty of Indian sandstone lies in regular, effective cleaning and care.

Check out our full range of professional patio cleaning services for all your Indian sandstone maintenance needs.

Frequently Asked Questions

What is the best cleaner for Indian sandstone?

The best Indian sandstone cleaner to use, is a product specifically formulated for sandstone and one that will help to address your specific needs such as removing black spot or moss and algae. These cleaners are gentle yet effective, ensuring they clean without causing harm to the stone. For everyday maintenance, a mild detergent or soapy water made from washing up liquid is sufficient. Avoid using acid based chemicals as they can damage the stone.

Is it OK to power wash Indian sandstone?

Power washing Indian sandstone is acceptable but should be done cautiously. Always use a low pressure setting to prevent damaging the stone's surface. High-pressure cleaning can erode the sandstone, leading to surface deterioration over time.

How do you clean sandstone without damaging it?

To clean sandstone without causing damage, use mild detergents and soft brushes for regular maintenance. For more stubborn stains, opt for specialist sandstone cleaners. Avoid using high-pressure and harsh chemicals that can erode or discolour the stone.

How do you get black stains out of Indian stone?

To remove black stains from Indian stone, a diluted bleach solution can be effective. Apply the solution to the stained area, allow it to sit for a short period, then gently scrub with a soft brush. Rinse thoroughly with water. Always do a patch test first to ensure the bleach does not adversely affect the stone.


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