Brewery Lane, Gateshead, Tyne and Wear

North East Paving And Gardens is community supported. We may earn a small commission through links on this page - Read More

How to Clean Indian Sandstone Paving Beautifully [7 Steps]

Indian sandstone slabs look absolutely fantastic when properly laid and cared for, so it’s no wonder you want to keep them that way. Knowing how to clean Indian sandstone patio stones, thankfully, is much the same as how you’d expect to look after any natural stone.

Tiny organisms, tough stains, green discolouration, you name it – over time, even the best-looking stones suffer.

The cost of Indian stone is not cheap, and in this guide, we’ll explain what you need to know about keeping the sandstone surface looking great with minimal effort.

We’ve cleaned and maintained our fair share of Indian sandstone slabs over the years. Yes, while it’s pretty hardy against the elements, and while you can take a power washer to it, you’re still going to need to take some care.

In this guide, we’ll show you:

  • Why Indian sandstone needs specific cleaning
  • Why the joints are just as important as your Indian stone
  • The two ways to clean stains off your Indian sandstone with ease

Once you know how to clean Indian stone for the better, you’ll find it a doddle to come back to time and again. Here’s how.

Sandstone is, as you might imagine, pretty hardy. It’s unlikely to erode with that great British weather, and vigorous cleaning shouldn’t give you any nightmares. However, with porous stone, you’re likely to suffer from staining sooner rather than later. It’s one of the common issues with Indian sandstone.

That means oil, mud, loose dirt; you name it – it’s going to sink deep unless you do something about it.

Stains can sink deep into your Indian sandstone paving slabs (permanently, if untreated) – as a result of bird mess, lichen spreading, leaves, footfall and more.

It all breaks down, and while you should look out for liquid spills, your Indian sandstone paving slabs could still stain easily without it being your fault.

Either way, you’re going to need to put some elbow grease in to get it all up. For best results, you’ll need more than the usual baking soda or washing powder to clean the patio.

How to Clean Indian Sandstone Paving Slabs

Before using any cleaning method, as with any paved area, you should make sure you clear any garden furniture out of the way and sweep your entire area clear. That means getting all the loose surface debris and dirt swept clear off the surface with a stiff brush and making sure any pets or children are out of the way if you’re using chemical cleaners.

Stain Removal

There are two great cleaning solutions for Indian sandstone stain removal.

Firstly, you can use warm water with a healthy dash of washing up liquid. Soapy water really does do the trick if the stains on your paving slabs are relatively new, but it’s always going to be a lot of work – you’ll need to get down with a wire weeding brush and scrub.

Professional Indian sandstone cleaner, however, will be designed for this very purpose. If you don’t like the idea of a bleach solution, follow the instructions on the bottle, spray the mixture evenly across your stone, and leave for a couple of hours. You can then rinse off.

Cleaning Indian Sandstone with a Jet Wash?

Yes, there’s no harm in you grabbing a pressure washer to clean Indian sandstone slabs. We’d recommend you use a pressure washer over rinsing by hand, simply because it’s really time intensive otherwise. Low-pressure cleaning is ideal to avoid nasty patches and streaks in the stone. However, it’s the joints you are going to need to watch for the most.

Protecting the Joints

Indian sandstone joints are typically set with professional care and often with a mix of sand and cement or Geo-fix – which means they are pretty expensive to put right. Blasting your jointing with a pressure washer is going to loosen it up, putting you right back at square one.

So, you need to make sure you pressure wash very carefully – low settings are a must when covering the joints.

Applying the Cleaner

Before cleaning Indian sandstone patio flags, make sure your sandstone is dry before you start to clean. Otherwise, the cleaner simply isn’t going to work correctly.

Indian stone cleaners come in different varieties – some need diluting, some won’t, but generally, most specialist cleaners can be sprayed across your patio and left to work. Two to four hours is generally the standard for the product to work into very porous stone.


Joint compounds such as Geo-fix, Sika FastFix and No Grow Dansand are fantastic to prevent weed growth and help compact the joints in your sandstone paving. The results are long-lasting, and you will be better protected against pressure washing. This post breaks down the top jointing compounds for Indian Sandstone.

What to Avoid

Knowing how to clean sandstone paving is one thing, knowing the pitfalls is another.

Here are some tips

Never go hell-for-leather into cleaning Indian sandstone on a high-pressure setting. This is only going to risk you blowing out the joints.

Start as low as you can on your power washer, and gently wash your joints. Check at intervals to see how the cleaning’s going, and increase the pressure if you need to.

For Indian sandstone paving slabs themselves, avoid using professional cleaners that aren’t formulated for natural stone. The wrong chemicals could cause more harm than good.

Where to Buy Indian Stone Cleaning Products

Below are the best places online or near you to buy Indian sandstone cleaning solutions, we also have a full list of stone cleaners here.


B&Q has a good selection of specialist sandstone cleaners available, with a couple being particularly good at cleaning tired Indian sandstone.


Amazon – you’ll find products from Pro-Kleen, Smartseal and Azpects available online that can all help your Indian stone.


It’s sometimes worth going straight to the manufacturer for the best products – and SC4U provides top-rated, specially-formulated bottles to clean Indian sandstone paving.


Cleaning indian sandstone with bleach – yes or no?

Cleaning Indian sandstone with bleach is undoubtedly an option – you’ll need a bleach mixture that is equal parts bleach and water to dilute safely. Household bleach kills moss and algae, removes dirt and can help to get rid of stubborn stains, more than you’d expect with soapy water alone.

Last Word on Ways to Clean Up Indian Sandstone

As the owner of Indian sandstone, you will want to keep that eye-catching finish looking its best for years to come. That’s going to take regular maintenance – but what you might not realise is that you’ll need to care for the paving joints as well as your slabs.

All the bleach and soapy water in the world will keep those warm colours looking wonderful – but when it comes to cleaning sandstone paving slabs, you’re going to need to go easy on the power washer. Don’t put this great tool away completely – just use a low setting!

We’d advise you to look for a top, specialist solution to help clean your Indian sandstone slabs – one that’s formulated for the type. As well as dirt, large colonies of moss and algae can build up across the surface and you won’t shift these just with a stiff broom- make sure you have the best products to hand and happy cleaning.

Now you know how to clean Indian sandstone slabs don’t go putting it off. All sandstone is great at bouncing back but it won’t clean itself.

Cleaning sandstone pavers is one way to keep them looking great, another is to add a sealer, which enhances colours and adds a layer of protection. Therefore reducing the amount of sandstone cleaning needed in the future. Here we cover what is the best Indian sandstone sealer and how to apply it.