Are you sick of seeing your patio’s dull and dirty look?

Do you want to show off your outdoor area to your guests?

So, you’re in luck, because we’re about to start talking about how to clean stones!

No matter if your patio is made of natural stone, concrete, or bricks, it needs to be cleaned regularly to keep it looking nice and last as long as possible. It will not only make your home look better, but it will also keep people from slipping and falling and protect your investment. So, grab a drink, kick back, and let’s talk about how to clean a porch!

Stone Cleaning

Benefits of Cleaning Outdoor Surfaces

There are many reasons why it’s important to clean areas outside.

First, it can keep dirt and other things from coming in from the outside.

When people walk into a building from outside, the bottoms of their shoes bring dirt and other debris from the ground inside.

You can stop this from happening by cleaning outdoor areas often.

Second, cleaning the outside of a building can make it look better.

The cleaner the outside is, the easier it is to see if there are any problems with the outside and fix them.

Washing the outside of a house on a regular basis can help keep it looking fresh and new, which could make it worth more.

Third, cleaning the outside can make it safer.

Dirt, trash, mold, mildew, and algae can grow on outdoor surfaces and make them slippery.

This can cause people to slip and fall.

Using a power washer to clean these surfaces will help get rid of this buildup and make them safer.

Fourth, keeping outdoor areas clean can make people healthier and happier.

Mold, mildew, and algae that grow outside can cause health problems like rashes and breathing problems.

These contaminants can be removed from these surfaces by power cleaning, which is good for your health and well-being.

Last, cleaning outdoor objects is important if you want them to last a long time.

Regular cleaning can stop dirt, mildew, rust spots, and paint from flaking off, which can speed up the rate at which the surfaces break down.

Pressure washing is a great way to clean the surface and get rid of old, peeling layers of product that could cause problems for new uses in the future.

Tips for Cleaning Garden Stones

Pour vinegar straight on dirty garden stones to clean them.

Be careful not to get pure vinegar on garden plants or grass, as it will kill them.

About 5 minutes should be enough time for the vinegar to get into the rocks.

The algae spot can then be cleaned with a scrub sponge or a wire bristle brush with stiff bristles.

Garden stones can also be cleaned with bleach and water.

The mixture should be put on the rocks and left there for about 10 minutes before the rocks are scrubbed and rinsed.

The rocks can be cleaned with a high-pressure yard hose or pressure washer.

Tips for Cleaning Outdoor Countertops

There are Stonecraft care kits because rock isn’t completely safe.

There are different kinds of stone that can be used for outdoor tables.

Each type has its own special qualities and may need different kinds of care.

Stone outdoor tables can be cleaned with high-quality stone cleaners.

It’s not a good idea to use a pressure washer to clean outdoor tables.

The high pressure can hurt the stone’s surface.

Instead, clean the area with a soft-bristled brush or sponge.

Don’t use harsh cleaners or scrubbing tools that can scratch the stone’s surface.

Types of Stones


One of the most common materials for outdoor surfaces is granite.

It can stand up to heat and can be cut into many different shapes, sizes, and colors.

It is also easy to take care of and good for the environment.

Granite is a good choice for outdoor tables because it doesn’t scratch or stain easily.

It can also be used to make walks and patios.


Another great choice for outdoor floors is porcelain tiles.

They don’t get dirty easily and are strong, which makes them great for high-traffic places.

They come in many colors and styles, so you can choose the one that goes best with your style.

Because they are easy to clean and keep, porcelain tiles are great for outdoor kitchens.


Terracotta tiles have an old-fashioned look that can make your outdoor space feel more cozy.

They have holes in them and work best in mild conditions.

Terracotta tiles are great for patios and walkways because they are easy to walk on when they are wet.

But they need regular care and sealing to keep them from getting stained.

Quarry Tiles

Quarry tiles have a rough surface and are easy to walk on when they are wet.

They are great for places outside where a lot of people walk by.

They come in many colors and styles, so you can choose the one that goes best with your style.

Quarry tiles are great for patios and paths.


Another popular choice for outdoor flooring is flagstone.

It comes in different kinds, like sandstone, limestone, bluestone, and quartzite.

When wet, the rough surface of these stones makes them easy to walk on.

Flagstone is great for patios and walks because it looks like it came from the earth.

Mixed Materials

You can also use more than one material to make something look more interesting.

Pea gravel or crushed stone, aggregate stone, bark mulch, rubber mulch, broken down granite, and sand are all examples of these.

You can use these things to make paths, borders, or outlines.

Choosing the Right Stone

When picking a stone for an outdoor project, you should think about the weather and how the space will be used.

For long-lasting outdoor countertops, you can use rocks that are about 3 cm thick.

Gravel is a good choice for drainage and can keep weeds from growing in the backyard area.

The choice of stone can also come down to personal taste and the style of the patio as a whole.

For example, a patio with Spanish style might use different kinds of stones to make it look like one piece.

Causes of Dirt and Stains

  • Mud and Soil: Mud and soil are common causes of dirt and stains on outdoor surfaces. They can be difficult to remove, especially when they are ground into fibers. The best way to remove mud and soil is to let it dry and then brush it off. If it’s still wet, use a hose to wash it away.
  • Hard Water: Hard water can also cause stains on outdoor surfaces. When mixed with certain ingredients found in sunscreens, such as avobenzone, it can create dark brown stains that are challenging to remove. To remove hard water stains, use a cleaner specifically designed for hard water stains.
  • Algae, Mold, and Mildew: Algae, mold, and mildew can also cause stains on outdoor surfaces, especially on porous surfaces. They require specific cleaners to remove them. To remove algae, mold, and mildew stains, use a cleaner specifically designed for these types of stains.

Appropriate Cleaners for Different Types of Stains

  • Rust and Oxidation: Rust and oxidation need different cleaners than grease and oils. To remove rust and oxidation stains, use a cleaner specifically designed for these types of stains.
  • Grease and Oils: Grease and oils require a different cleaner than rust and oxidation. To remove grease and oil stains, use a cleaner specifically designed for these types of stains.
  • Algae, Mold, and Mildew: To remove algae, mold, and mildew stains, use a cleaner specifically designed for these types of stains.

Sherwin-Williams has many solutions for dirt, stains, and discoloration on outdoor surfaces, such as alkali burning, chalking, darkening of wood, efflorescence, and water and smoke marks.

It’s important to use the right cleaner for each kind of mark and surface to make sure the job gets done right and the project lasts longer.

Methods of Stone Cleaning

General Cleaning

Stone surfaces can be cleaned regularly with a damp cloth and a light soap solution.

Don’t use cleaners that are rough or acidic because they can damage the surface.

For tougher stains, use a professional stone cleaner instead.

Limestone Surfaces

Limestone surfaces need to be cleaned with extra care.

Use a mild soap solution for every day washing.

For polished limestone, you should use a pH-neutral cleaner like light dish soap.

For tough spots, you can use a strong alkaline cleaner, but you should spread it on thinly so it doesn’t damage the surface.

Spread the cleaner on the rock with a brush with soft bristles.

Natural Stone Surfaces

Granite, marble, travertine, slate, and limestone are all natural stone surfaces that need to be cleaned in a certain way.

Avoid using strong chemicals, abrasive cleaners, and acidic solutions because they can damage the surface and break down sealants.

Instead, use a soft cloth and a cleaner made especially for stone surfaces.

Don’t use cleaning pads or steel wool on soft natural stone surfaces, as they can scratch and etch the stone.

Pressure Washing

Pressure washing is a good way to clean stone surfaces, and it has a number of other benefits as well.

It gets rid of dirt, mud, garbage, hard water, bug guts, oil, food spills, and any other buildup, so the stone stays clean and looks great.

It also helps break up tough spots like grease, oil, and rust that are hard to clean with regular methods.

It also makes the stone last longer by getting rid of things that are bad for it.

This makes it cheaper to fix because the problem isn’t as bad, and it also makes your stone look great and work well.

Lastly, pressure cleaning natural stone gets rid of any buildup, so you can see if there is any structural damage.

If there is damage or wear and tear, it can be taken care of before it gets worse.

It’s important to use the right method when pressure washing stone surfaces so you don’t damage the stone.

Change the setting on the sprayer so that the water comes out in a fan instead of a jet.

Stand a few feet away from the stone so you don’t break it or make it flake.

Pressure washing stone veneer is another good way to clean, keep, and bring back the beauty of stone surfaces outside.

Frequency of Cleaning

If you see greenish-black stuff on your concrete patio, it’s probably mold, mildew, or moss, and you should clean it as soon as possible.

How often you clean will depend on how much mold, mildew, or moss is there and how often it comes back.

Places with a lot of mold may need more than one treatment.

On other occasions, this could be done once a year as part of a spring cleaning.

Outdoor furniture

In the spring, you should clean your outdoor furniture once a week, and in the summer, you should clean it every other week.

This will get rid of the pollen that builds up on the furniture.

This is very important for people who live in places where it is hot.

Granite surfaces

When cleaning granite surfaces outside, it’s best to do it as soon as possible and use soap and water to get rid of the dirt.

Outdoor granite surfaces can also be cleaned with cleaners for kitchen surfaces that don’t have bleach or strong abrasives.

If the outdoor granite surface is made of a porous material like marble or limestone, you should rinse off any loose dirt or outdoor waste with water and then clean it with soap and water.

If you need to clean something more, you can use a cooking surface cleaner that doesn’t have bleach or harsh abrasives.

Wet & Forget Outdoor

If you live in a dry area, you can use Wet & Forget Outdoor according to the advice on the package.

Then, a week later, you can use a garden hose to rinse the surfaces.

But if you live where it’s humid, you might need to clean your outdoor areas more often.

Safety Precautions

Wearing Personal Protective Equipment (PPE)

When cleaning outside areas, the first safety measure you should take is to wear personal protective equipment (PPE).

When working with cleaning agents, PPE includes gloves, safety glasses, or a respirator.

Wearing PPE will protect you from dangerous chemicals and keep you from getting hurt or hurting someone else.

Following Proper Procedures for Cleaning Up Spills

When cleaning outdoor areas, the second safety measure you should take is to clean up spills the right way.

If you spill cleaning chemicals by accident, you should clean it up right away and get rid of it the right way.

Also, you shouldn’t touch the spilled area with your bare hands.

Instead, you should wear gloves to protect your skin.

Using Proper Equipment and Precautions When Cleaning Above Ground Level

The third safety measure you should take when cleaning outdoor surfaces is to use the right tools and precautions when cleaning or repairing the outside of windows above ground level.

To avoid getting hurt or having an accident, you should use a ladder or other piece of equipment made for this task and follow all safety rules.

Considering the Type of Surface and Frequency of Use

When cleaning outdoor areas, you need to think about what kind of surface it is and how often it is touched.

Germs are more likely to spread on surfaces that people touch often, so they should be cleaned more often or sanitized in addition to being cleaned.

It’s also important to clean surfaces first, because dirt and other impurities can make it harder for chemicals to reach germs and kill them.

When cleaning, you should always start with the cleanest (least dirty) area and work your way to the dirtiest (most dirty) area.

This way, you won’t spread dirt to areas that are already clean.

Avoiding Spraying Cleaning or Disinfection Products on Low-Touch Surfaces

Spraying cleaning or disinfecting products on low-touch surfaces outside, like sidewalks, roads, or groundcover, is not required, effective, or recommended.

This won’t work because the sanitizer won’t work if there are things like dirt or trash around.

If you don’t have enough resources to clean and sterilize regularly, you should wash your hands often and try not to touch your face.

These are the best ways to stop the spread of any germs that might be on surfaces.

Washing Your Hands After Cleaning

Last, always wash your hands for 20 seconds with soap and water after you clean.

This will help keep you safe and healthy by stopping the spread of germs.

Mistakes to Avoid

Cleaning outdoor surfaces is an important thing to do if you want them to look good and last longer.

But people often make the same mistakes when they clean outdoor areas.

Here are some tips to help you avoid these mistakes and get the best results.

Consider the Age of the Surface

People often make the mistake of not thinking about how old an outdoor surface is when they clean it.

Even the best paints and colors have a shelf life, and if they are put on a surface that isn’t clean, they will wear out even faster.

For a job to go well, it is important to start with a surface that is as clean as possible.

Using the Proper Cleaner

People also make a mistake when they don’t use the right cleaner for the job.

Different spots need different cleaners, and you can’t solve all your problems with just one cleaner.

For example, rust and oxidation need different cleaners than grease and oils, and organic spots like algae, mold, and mildew also need a different cleaner.

So, it’s important to think about both the spots and the surface to be cleaned and to rinse the surface well after cleaning.

Avoid Reusing Rags

Lastly, when cleaning outdoor areas, people often make the mistake of using the same rags more than once.

When cleaning, you should have more than one rag on hand and not use the same one to wipe down different things.

Using a new rag will help keep germs and dirt in one place and stop them from spreading to other places.

Other Tips to Keep in Mind

Here are a few more things to think about when cleaning outdoor surfaces:

  • Wear gloves and eye protection when using cleaners to protect your skin and eyes.
  • Use a pressure washer to clean large areas quickly and efficiently.
  • Test the cleaner on a small, inconspicuous area before applying it to the entire surface.
  • Follow the manufacturer’s instructions for the cleaner and any tools you use.
  • Rinse the surface thoroughly after cleaning to remove any residue.
  • Allow the surface to dry completely before applying any paint or stain.


Keeping the outside of your home clean is important if you want it to look its best.

There are many ways to clean and take care of outdoor areas like patios, driveways, decks, and roofs.

Sweeping and Removing Furniture

To keep your outdoor space in good shape, sweep the deck once a week to prevent buildup.

Before you start cleaning, take out all of the furniture and other items from your outdoor area.

This will make cleaning easy and keep you from breaking any of your things.

Pressure Washing

Pressure washing is a great way to clean outdoor areas that are dirty or grimy.

Decking can be cleaned with a power washer using a number of different solutions, such as a 50/50 mix of bleach and water.

This will help get rid of any spots that have been there for a long time.

But there are also ways to do things that are better for the environment if you’d rather.

Cleaning Mold and Mildew

Mold, mildew, or moss are probably to blame for the greenish-black stuff on your concrete patio.

Mold and mildew can grow in the cracks and crevices of concrete steps or bricks when the weather is damp or wet.

This can be caused by rain or humidity.

To get rid of mold, mildew, lichens, algae, and moss, you can use a cleaning product that won’t hurt the surface, is safe for people, pets, and the environment, and is affordable.

To keep your home clean and looking nice, you need to clear away leaves and other debris from your outdoor areas.

Depending on the type of trash and the surface, you can clean it up in different ways, like by using rakes or brooms.

Summing up the main ideas

In the end, cleaning stone isn’t just about getting the dirt and grime off your yard. It’s about bringing back the natural beauty of your outdoor area and making it a place where you and your guests feel welcome. But it is also about taking care of the place where we live. By cleaning with eco-friendly products and methods, we can have less of an effect on the world and keep the natural beauty of our surroundings.

So, when you think about cleaning your patio next, think about the big picture. Think about how what you do affects the world and what you can do to help. And don’t forget that a clean porch shows that you care about making the world a cleaner, greener place. So, let’s all do what we can to keep our outdoor areas looking nice for future generations.

Looking for a new Pressure washer?

Choosing a gadget can be very difficult if you know nothing about the technology.

Some will pay for features they do not need while others may not consider what they really want.

So I created this quick, newbie guide to help you focus on what is really important to you:

The Best Pressure Washer (For You!)

What are some ways you can keep the outside of a house clean?

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Links and references

  1. article series on stone cleaning
  2. STONE CLEANING METHODS (link provided in article)
  3. “Exterior Building Enclosures: Design Process and Composition for Innovative Facades” by Keith Boswell (book)

My article on the topic:

Patio Cleaning 101: Tips, Tools & Safety

Written reminder for myself: (Article status: plan)