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Dirty concrete makes the whole place look neglected, even when the rest of the yard is in decent shape. This heavy-duty concrete cleaner tackles dingy patios, sidewalks, and driveway spots with a simple bleach-and-soap wash that doesn’t require a fancy specialty product (or a dramatic trip down the cleaning aisle).

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Mixing your own batch costs less than buying a ready-made concrete wash in many cases. Using current Walmart pricing, 2 cups of liquid bleach plus 1 teaspoon of dish detergent works out to about $0.54 for one batch, while warm water comes from the tap, and making it yourself lets you control the strength, skip added fragrance if your detergent choice allows, and mix only what you need.

This formula uses 3 materials and mixes in one bucket. You’ll just need a bucket for mixing and a water source for rinsing, which keeps the whole job refreshingly low-maintenance.

✨ Jump to:

🧰 Materials You'll Need
🔧 Tools & Equipment
🛠️ How to Make and Use Concrete Cleaner
🎨 Customization Ideas
🛠️ How to Use It
🛡️ Safety Information
📦 Storage
💸 Cost Breakdown
🛍️ Need Help Finding Everything?
❓ Frequently Asked Questions about Concrete Cleaner
📌 Love this Concrete Cleaner? Pin it!
🖨️ Print-Friendly How-To: Concrete Cleaner

Materials You’ll Need

2 c. liquid chlorine bleach
2 gallons warm water
1 tsp. Dawn dish detergent

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Tools & Equipment

Bucket
Water source for rinsing

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How to Make and Use Concrete Cleaner

Mix the liquid chlorine bleach, warm water, and Dawn dish detergent well in a bucket.
Wash the concrete with the mixture.
Rinse the surface with clear water.
Allow the concrete to dry completely.
For tough stains, allow the mixture to set for 15 minutes before rinsing.

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Customization Ideas

Use this batch as written for general concrete washing when the surface just looks dull or dirty.
For tougher stained spots, use the same mixture but let it sit for 15 minutes before you rinse.
If you need a whitening-focused variation for outdoor concrete, you might also want to see Concrete Bleach.

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How to Use It

This cleaner works best on exterior concrete that can be rinsed thoroughly with clear water. Apply it to the dirty area, wash the surface, and rinse well so the bleach solution doesn’t keep sitting on the concrete longer than necessary.

If you’re tackling grime on other household surfaces too, keep this mix strictly for concrete and use a surface-appropriate cleaner elsewhere, such as Tile Floor Cleaner or Vinyl Cleaner.

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Safety Information

Use this cleaner only where you can rinse thoroughly with clear water, and never mix it with other cleaning products. The U.S. Environmental Protection Agency warns that bleach should not be mixed with ammonia, acids, or other cleaners because dangerous fumes can form. Read more in the EPA’s guidance on using bleach safely during cleanup.

Keep the mixture away from clothing and surfaces that could discolor from bleach contact. If you’re working with splashes at bucket level, gloves and eye protection are a smart idea.

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Storage

Mix this cleaner right before you use it rather than storing leftovers. Bleach solutions lose strength over time, so a fresh batch gives you the most reliable results.

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Cost Breakdown

Using current Walmart pricing, here is the estimated consumable cost for one batch:

2 cups liquid chlorine bleach: about $0.48
1 teaspoon Dawn dish detergent: about $0.06
2 gallons warm water: not calculated

Estimated total per batch: $0.54

Prices vary by store and region, but this is still an inexpensive way to wash stained concrete.

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🛍️ Need Help Finding Everything?

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Frequently Asked Questions about Concrete Cleaner

Can I store leftover concrete cleaner for later?

You’re better off mixing only what you need and using it right away. Bleach solutions lose strength over time, so a fresh batch works more reliably than leftovers sitting in a bucket.

How long should I leave this on tough stains?

For tough stains, let the mixture sit for 15 minutes before rinsing. That’s the only soak time this formula calls for, so there’s no need to let it linger all afternoon.

Do I need to rinse the concrete after washing?

Yes. Rinse with clear water after washing, then let the concrete dry. That final rinse matters because it removes the cleaner instead of leaving residue behind.

Can I use a different dish detergent instead of Dawn?

This formula specifically uses Dawn dish detergent, so that’s the best match if you want to follow it exactly. If you swap products, avoid anything that contains ammonia or additional cleaners that shouldn’t be combined with bleach.

Is this cleaner meant for indoor or outdoor concrete?

This works best for concrete you can wash and rinse thoroughly with clear water, which usually means outdoor areas like patios, walkways, and driveways. Good ventilation and easy rinsing make the job much simpler.

Can I mix this with another cleaner to make it stronger?

No. Don’t add other cleaners, especially anything with ammonia or acids. More ingredients do not equal a better plan here.

What should I do if the stain doesn’t come up the first time?

Start by using the 15-minute sit time for tough stains, then rinse well. If the mark is still there after the concrete dries, repeat the cleaning rather than making the mixture stronger.

Do I need special tools to make this?

No fancy setup here. You just need a bucket for mixing and a water source to rinse the concrete clean.

Will one batch cover a specific square footage?

The formula gives exact ingredient amounts, but it doesn’t assign a square-foot coverage rate. Coverage depends on how dirty the concrete is and how heavily you apply the wash.

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Did you try this concrete cleaner? Tell us where you used it and whether the 15-minute soak helped with your worst stains.

🖨️ Print-Friendly How-To: Concrete Cleaner