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Cleaning Concrete, Sidewalks, Steps and Brickwork


Concrete, a surface that can always be slippery... A happy customer, in Washington, cleaned his sidewalk and sent us this photo, so we could brag. Concrete can be a trickier surface to clean, especially for new customers. It is porous, so liquid quickly soaks right in. It is a rougher texture, so things can really get a strong foothold in the nooks and crannies. However, once you master your technique, the time saved and the ease of cleaning gets everyone excited. Here's some common advice to help everyone get the same results that he did, shown above. Start when your concrete is dry, preferably in the morning so that the concrete surface is cooler and you have less evaporation. Clean a 2 foot patch that lets you get familiar with how much 30 SECONDS Outdoor Cleaner it will take and how long you have to leave it sit. The general rule of thumb is to saturate the area enough so that the cleaner pools on the surface. You will probably see it go white and bubbly, and it should appear clean, before you rinse everything away. This will take about 15 minutes. This is the longest time needed for 30 SECONDS Outdoor Cleaner to clean, simply because of this type of surface; it's porous and it's rough. Once you are confident with the process then you can tackle the bigger areas, knowing when and where to re-apply more cleaner, if necessary. You will notice that there is grass all along the sidewalk, above. 30 SECONDS Outdoor Cleaner is designed to be used around all your lawns and landscaping. Once it goes into the soil, it biodegrades, so its perfect for virtually any setting in your yard.


Speaking of different settings... here's another area,  in Washington. The cleaning process is the same for this type of project too.


And this customer is having fun in Illinois. All he said was "WOW! This stuff really does work!" when he sent us these photos. Cleaning this brick is the same process as cleaning the concrete because they are both porous and rougher than other surfaces.

Do any of you have great stories to share?

Before and After Pictures

Customer Photos

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Jill Collier

October 28, 2014

Cleaning around your pool is a very popular use for 30 SECONDS Outdoor Cleaner. That area can get extra wet, humid and slippery. Here’s my advice to help enjoy that space again.
Lower the water level quite a few inches below the tile area. This is really just to help when rinsing the area. You will want to minimize any overspray into your pool.
Spray our cleaner on when the surface is DRY. Apply enough cleaner so that it keeps the surface wet with 30 SECONDS for at least 15 minutes (time recommended for brick and stone surfaces.) You don’t want the cleaner to simply soak in, since that wont be able to clean the actual surface.
Once it looks clean, you can rinse away the area. If you have stubborn areas that don’t quite look clean, then apply more cleaner before you go to rinse everything away. In your case, make sure the tile is rinsed really well and completely dried out, before you raise the water level.
These areas are often such great candidates for before and after photos. If you are up for it, we’d love to see your results.


October 28, 2014

Cool ideas shared above to clean the concrete work. I am looking forward to do the gevelreiniging (facade cleaning) of my home at Antwerpen. I would appreciate a little low down on the facade cleaning work so that I am assured of the work that my vendors would perform. Thanks for the post shared above.

Jill Collier

October 28, 2014

Hi Thomas
Your post was a great opportunity to learn a new word…gevelreiniging. Once I googled it and saw the images of the brick facades, I totally understand your perspective. Cleaning the facades would be very similar to cleaning concrete, brick and masonry, on our label.

Simply start with a dry surface and saturate the surface well with 30 SECONDS Outdoor Cleaner. Believe it or not, this is the trickiest step because you have to apply enough cleaner, on your vertical surface to ensure the cleaner keeps the surface wet, long enough to clean. You can’t just spray on a light spray and have it soak right in, and not allow enough time to clean. The label has more step-by-step directions, and time needed, for various surfaces.

Once you master that step, and you see the surface clean, then you simply rinse with a hose. No more pressure washing. I would imagine that if people usually pressure wash their façade, they are going to love 30 SECONDS Outdoor Cleaner. It is not harsh on the surface, since you are only using a garden hose and it will be much faster. Pressure washing can be so time consuming and back breaking.

Give 30 SECONDS a try. Call me if you want more advice. And let me know if you get struck by the ‘Woo Hoo’! effect that we all know here in the Pacific NW.

Edme Smets

October 28, 2014

Incredible stuff, concrete cleaning is really a tiresome exercise and the kind of results you have shown, is appreciable. Its biodegradability makes it a much more eco friendly choice for façade cleaning.

J Mitchell

October 28, 2014

I am wanting to use the 30 seconds cleaner on our rock tile pool surround. It of course is at the water line. What is the best way to do this? Should I leave the treated area above water level for a time period or can I just drain below tile, treat area and then refill pool to cover the area?? We of course are not swimming because of winter so I am not worried about water contamination.


May 30, 2016

Do you dilute the 30 second cleaner for a dirty sidewalk?


June 24, 2016

Is it safe to use on colored concrete?


July 11, 2017

How will using your product affect my plants nearby the concrete, to be cleaned?

Jessica Merly

July 11, 2017

HI Mary,
30 SECONDS Outdoor Cleaner is formulated to be safe around your lawn and landscaping. You can safely rinse it into the dirt, where it will break down and not harm the root systems of your plants. If spray does get directly on the plants during cleaning, simply rinse the foliage off within 10 minutes to avoid spotting. Cheers!

Angie Garrett

November 13, 2017

Hi, we’re in High Point, NC, and we need to clean a rough concrete sidewalk in front of our condo, which is right beside some new grass growing where we recently had to plant seed to grow this lovely grass. If we use 30 Seconds Outdoor Cleaner, do you promise that when we use our power setting on our regular water hose (not a pressure washer) that it will not kill our new grass? Also, which cleaner do you recommend since you have several selections? The sidewalk is not very long, about 3 feet wide by 20 feet long.

Jessica Merly

November 17, 2017

Hello Angie,
Thank you for your question. 30 SECONDS Outdoor Cleaner is safe to use around lawns and landscaping when used as directed, and breaks down readily in the soil. As a precaution, you can wet down the grass both before and after application to protect such tender, new growth.
1 gallon of the 30 SECONDS Outdoor Cleaner Concentrate will clean approximately 220-660 sq feet depending on the porosity of the surface. Since you are looking to clean rough concrete, you’re coverage will be closer to the 220 sq ft. One gallon should be plenty for the area you are describing.
Follow the directions on the bottle, and be sure to thoroughly and heavily saturate the concrete with cleaner. This will help to ensure the best results. If you have further questions, please do not hesitate to ask.

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About 30 SECONDS® Cleaners
  • 30 SECONDS Cleaners are proudly made in the USA
    Troutdale, Oregon and Manchester, Tennessee
    (503) 669-1953

About 30 SECONDS® Cleaners
  • 30 SECONDS Cleaners are proudly made in the USA
    Troutdale, Oregon and Manchester, Tennessee
    (503) 669-1953