will a pressure washer remove rust from concrete
Kristina Davis

Since rust stains are one of the most common types of stains on concrete, will a pressure washer remove rust from concrete? 

If you’ve got rust stains on your concrete, at the end of this write-up, you would know how to remove them.

The best way to do this is by using a pressure washer with a detergent solution.

If you want to know how they work, read on.

The pressure washer is powerful enough to remove rust from concrete. If you want to clean your patio or driveway and remove the rust stains, then a pressure washer can help you do that.

Can Pressure Washer Remove Rust?

can pressure washer remove rust

Pressure washers can be used to remove rust from a variety of surfaces, including concrete and metal. 

A pressure washer that has the right nozzle can help you clean rusty parts without damaging them. 

The best way to do this is by using cold water or steam as your cleaning solution. Then just, simply apply pressure as you spray it onto whatever area needs cleaning.

To get the most from your pressure washer, you need to use the best nozzle for your job.

Tip: If you're cleaning small areas with a wide radius around them, like a driveway or patio, then it's best to use a wide-radius nozzle.

Types Of Nozzles You Can Consider Using With Your Pressure Washer

nozzle types to use

Type #1: The Wider Radius Nozzles

If you have a large area to clean, consider buying a wider-radius nozzle. These nozzles are best at cleaning broad, flat areas like your driveway.

Type #2: The Narrow Radius Nozzles

If you’re looking to clean vertical surfaces, then a narrow-radius nozzle is your best bet.

Narrow nozzles have a more precise angle that allows them to reach the edges of your project.

Type #3: Turbo Nozzles

For tough jobs like stripping paint from wooden decks or removing old siding from houses, turbo nozzles are ideal. 

using turbo nozzle

Because they can apply high levels of pressure without damaging anything around them (like doors or windows).

You’ll also want these types if there are any cracks in surfaces.

Type #4: Turbine Nozzles

Turbine nozzles can remove rust on metal parts such as car bodies or tools. They are also able to remove paint from surfaces like walls or fences. 

If you have mold in your house’s attic or basement then a turbine nozzle will do the trick.

You can use an angle grinder or circular saw to cut through any large pieces of rusted metal

Tip: Do this before using a pressure washer with high pressure (up to 30 psi) to help you find which nozzle is best for your task.

Will A Pressure Washer Remove Rust From Concrete?

pressure wash remove rust

Of course, they will. Rust stains are unsightly, but they can be easily cleaned using a pressure washer. 

Pressure washing is an efficient way to deep clean your patio and removes rust stains. Pressure washers are safe, effective, and easy to use. 

When used properly they’re able to remove rust quickly and easily from surfaces like concrete or metal, or even wood.

You can also use a pressure washer with an extension wand (or hose). Then apply hot water until all of the iron has been removed from your concrete surface. 

rust in concrete

This will prevent future damage from occurring if there are still any areas where iron is present.

The pressure of the water can be adjusted, and the speed of its release can be controlled as well.

Pressure washers come in many different sizes, each designed to handle different tasks. 

They’re also available in various colors and styles, some have wheels for easy mobility, while others are more stationary.

Tip: It’s still portable enough to move around as needed.

How To Remove Rust Stains From A Concrete With A Pressure Washer?

removing rust stains

A pressure washer uses water under high pressure to blast away dirt, debris, and grime that might be stuck on your concrete surface.

It is a powerful tool that can be used to clean many surfaces. 

What Causes Rust On Concrete?

Rust stains on concrete are caused by the interaction of oxygen and iron in the presence of water. This process is known as oxidation, and it results in rusting.

Rust can also be caused by other factors.

This could be acid rain, and pollution from manufacturing plants or chemical spills (including those containing chromium), or improper cleaning techniques.

Ways To Remove Rust Stains From Concrete With A Pressure Washer

remove rust stains from concrete

The pressure washer is a great way to get rid of stubborn stains in your home or business.

You can also use them for other surfaces, such as wood or brick, with similar results. 

Method #1: Using a Power Washer With A Long Hose And Nozzle

Step #1:  Remove Rust Stains

One must remove the pressure washer or other type of pressure washer with a long hose and nozzle that can spray a fan of water. 

To do this the nozzle should be able to spray at least 5 gallons per minute (GPM).

This is enough to do the job without having to keep stopping to refill the bucket with more water.

You will also need detergent solutions, such as Simple Green or an equivalent product from your local store or home improvement store. 

Make sure it’s not too concentrated, though, otherwise, it may damage floors or other surfaces nearby.

Step #2: Use A Pressure Washer To Remove Rust Stains From the Concrete

pressure washer walkways

Use a detergent solution to remove the rust stains from your concrete driveway or walkway. Then follow the instructions on the package for applying it to your concrete surface.

Apply it with a pressure washer, and let it sit for 30 minutes before rinsing off with water and drying.

This will help prevent streaking or staining as you repeat this step several times over several weeks or months.

Step #3: Use A Pressure Washer With A Detergent Solution

Doing this will help loosen up any remaining rust stains on your concrete surface so they’re easier to clean away. 

You can use any kind of detergent, but I recommend using one specifically designed for concrete cleaners like Concrete Shield.

pressure washer detergent solution

After spraying on some water, first wet down any loose particles, then go ahead and spray your stain with Concrete Shield detergent solution. 

Spray it until it looks like there are no more remnants of rust hiding in between those old spots. Just keep an eye out for drips or splatters as you work. 

Let soak for at least five minutes before rinsing off completely with plenty of fresh water

Tip: It's important to note that the pressure washer must be set to its highest setting and used for this process. 

Method #2: Using A Pressure Washer With A Detergent Solution.

The best way to remove rust stains from concrete is by using a pressure washer with a detergent solution. There are several ways to do this. 

First, clean the concrete surface with a garden hose. Next, apply the detergent to the surface. 

clean concrete with pressure washer

Then allow it to sit there for at least an hour before you begin pressure washing. Additionally, use a pressurized water sprayer and fill it with cool water. 

This will help prevent any damage that may occur while you’re using your pressure washer on this project.

You can also use an acid solution instead of water when washing away rust stains on your driveway or sidewalk area.

Tip: When using an acid solution, make sure that you don't leave any leftover residue behind because, if not cleaned up properly may cause damage.  

The Best Types of Concrete Detergents for Rust Removal

best types of concrete detergent

The best types of concrete detergents for rust removal are alkaline. Your best option is to use a strong detergent that contains phosphates.  

These products will help you remove rust without damaging the surface by causing it to fade or discolor.

You need to be extra thorough when removing rust from your concrete surfaces. It may be beneficial for you to use two different types of cleaners at once.

Use one that’s specifically designed for cleaning concrete. 

Then add another that targets dirt and grime better than most other products on the market today.


If you have a rust stain or surface that needs to be cleaned up, and you are asking – will a pressure washer remove rust from concrete? 

The best solution is to use a pressure washer. It will not only remove the stain but also help clean and sanitize your patio so it can last for years to come.