How to Clean a Concrete Balcony

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Relaxing on your apartment balcony is a great way to enjoy the fresh air, but even concrete still gets a little dirty out in the elements. Luckily, there are a ton of things you can use to clean your balcony without a hose. We've put together a list with some easy cleaning tips and recommendations on what to use for stubborn stains so you can go outside and enjoy your space!

1

Clear everything off your balcony.

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    Bring all of your things inside or put them in your yard. If you have any heavy furniture, ask a friend to help out so you don’t hurt yourself. Also make sure you move potted plants since the cleaning solutions could damage them. [1]
    • You may want to clean off any furniture before bringing inside so your home stays clean.
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2

Sweep loose dust and debris.

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    Start near the edges of your balcony and work towards the center, collecting the dirt in a couple of spots. Be sure to reach all the tight corners of your balcony since that’s where dirt builds up the most. Once you’ve swept up as much as you can, collect it all in a dustpan and throw it away. [2]
    • Always use smaller and shorter strokes. Not only will these be more precise, but they also won’t make a mess in the process of sweeping.
    • If possible, make small dirt piles, as you don’t want to try and move dirt too far around the room. Having many small piles will typically be more effective than trying to create one big pile.
    • If something is really stuck to the concrete, try loosening it with a plastic scraper.
    • If you have trouble reaching tight spaces with your broom, try using a vacuum with a hose attachment.
3

Sponge or mop your balcony.

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    Fill a bucket with warm water and mix in a little bit of mopping solution or detergent. Use your sponge to wipe down the walls or railings around your balcony. Then, mop the floor with your cleaning solution working from the edges of your balcony toward the center. [3]
    • You can use your sponge on the balcony floor if you don’t have a mop.
    • For more scrubbing power, use a stiff-bristled brush to scrub off the dirt.
    • Always be mindful of anyone who has a balcony directly underneath yours since water running off could drip down and get their balcony dirty. Always wring out your mop or sponge before you start so there isn’t as much excess water.
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4

Remove rust stains with laundry detergent.

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    Apply the detergent onto a stiff-bristled brush and work it into the rust stain. After rubbing in the detergent, leave it on the stain for about an hour. Mist the detergent with water throughout so it doesn’t dry. Then, scrub the stain again with a wire brush and rinse it off with water. [4]
    • You may need to try this 2–3 times to completely lift the stain.
5

Try dish detergent for leaf stains.

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    If you have brown stains from old leaves, combine about 1 ⁄ 2 cup (120 ml) of liquid dish soap into a bucket with 3 gallons (11 L) of water. Pour the solution on top of the stains and work it into the concrete until the stains break apart. Rinse the solution off with clean water to finish up. [5]
    • For a little extra cleaning power, try sprinkling powdered laundry detergent on the stain after rinsing it off and scrubbing it with your brush again. Detergent that says it’s effective against food stains works the best.
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6

Apply commercial degreaser for grease stains.

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    Spray the degreaser onto your concrete so it thoroughly coats the stain and let it soak in for a couple of minutes. After that, scrub the stain with a stiff-bristled brush. [6]
    • Products like Organic Orange or Goof Off are good picks for degreasers.
7

Use trisodium phosphate for oil stains.

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    Trisodium phosphate (TSP) is a liquid cleaner you can buy from your local hardware store. Mix 1 part TSP with 6 parts water. Add in calcium carbonate or cornstarch until the mixture forms a thick paste. [7] Spread the paste over the stain and let it dry for 24 hours. Then, scrub the surface with a stiff-bristle brush and clean water. [8]
    • You can buy calcium carbonate or talc powder from your local hardware store as well.
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8

Spread diluted bleach for mold and mildew.

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    Put on a pair of gloves, mask, and safety glasses to protect yourself from the bleach. Add equal parts of bleach and water into a spray bottle or bucket. Spread the solution over the stain and let it sit for 10 minutes. After that, use a stiff-bristled brush to lift up the stains. [9]
    • Since bleach could discolor your concrete, spot-test it in an inconspicuous area of your balcony before using it on the stains.
    • Only use as much bleach solution as you need since the runoff could kill plants or flowers.
9

Scrub the toughest rust stains with muriatic acid.

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    Get some muriatic acid from a hardware store. Put on some long gloves and protective eyewear before pouring 1 ⁄ 2 cup (120 ml) of the acid into 2 cups (470 ml) of cold water. Carefully pour the acid onto the rust stains and work it in with a stiff-bristle brush. Let the acid sit for a few minutes and then rinse it off with clean water. [10]
    • You may need to try 2 or 3 treatments for heavy rust stains.
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10

Use a pressure washer for the deepest clean.

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    break apart stubborn debris, but require a hose. You can rent a pressure washer from a hardware store or buy your own. Connect the pressure washer to a hose and set the machine to around 3,500 PSI. Hold the washer hose about 8 inches (20 cm) off the ground and turn on the pressure washer. Work in back and forth strokes across the concrete to remove deep-set stains and debris. [11]
    • Pressure washers aren’t the best choice if someone has a balcony underneath yours since the water will leak and spill down onto it. If you do plan on cleaning your balcony, let anyone who lives directly below you know so they can move their items.
11

Rinse your balcony with clean water.

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    If you have access to a hose, just spray your balcony down to rinse it. If you don’t have a hose near your balcony, then fill a bucket with some clean water and wipe the floor clean with your mop. [12]
    • If someone has an apartment below yours, then stick to using a mop and bucket. Wring out the mop before you use it so water doesn’t drip down to the lower balcony.
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12

Seal the concrete to prevent stains.

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    You can buy concrete sealant from a hardware store. Use a garden sprayer or a paint roller to apply a thin layer of the sealant onto the concrete. Let the sealant dry and cure before using your balcony again so you don’t risk any future stains. [13]
    • Read the instructions on the sealant thoroughly since brands may have different curing times.

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      Tips

      • Try to clean your balcony every 1–2 weeks so it never gets too dirty.
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      • Take breaks to clean your broom, since it’s easy for dust and debris to get stuck in the bristles. They can occasionally fall off the bristles and end up making a mess.
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      Warnings

      • Always wear gloves and safety glasses when using strong chemical cleaners like bleach and muriatic acid. [14]
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      • Vinegar can actually wear away concrete and make it weaker, so try another cleaning solution instead. [15]
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      • When sweeping, trying to go too quickly with big strokes will end pushing dust and debris around the balcony.
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      References

      1. ↑ https://youtu.be/KqKyuGWcOsc?t=37
      2. ↑ https://smallbalcony.com/9-tips-to-clean-pigeon-poop-off-a-concrete-balcony/
      3. ↑ https://smallbalcony.com/how-to-clean-a-balcony-without-a-water-hose/
      4. ↑ https://todayshomeowner.com/how-to-remove-rust-stains-from-concrete-naturally/
      5. ↑ https://www.bobvila.com/articles/driveway-cleaning/
      6. ↑ https://youtu.be/swb14AJ4baU?t=24
      7. ↑ https://www.bobvila.com/articles/driveway-cleaning/
      8. ↑ https://www.latimes.com/archives/la-xpm-1995-08-13-re-34599-story.html
      9. ↑ https://mybackyardlife.com/how-to-clean-concrete-patio-without-pressure-washer/
      1. ↑ https://www.bobvila.com/articles/driveway-cleaning/
      2. ↑ https://www.bobvila.com/slideshow/8-steps-for-making-your-sad-patio-look-brand-new-again-386534
      3. ↑ https://smallbalcony.com/how-to-clean-a-balcony-without-a-water-hose/
      4. ↑ https://youtu.be/XtXopmXJ3mo?t=193
      5. ↑ https://www.bobvila.com/articles/driveway-cleaning/
      6. ↑ https://www.bobvila.com/articles/driveway-cleaning/

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