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Concrete is durable and versatile, making it a popular material for both interior and exterior flooring surfaces. Because it is stain-resistant and can be left plain and smooth or stamped with unique designs, concrete also offers a great deal of flexibility in terms of functionality and decor in a variety of spaces. Since concrete is porous, regular cleaning is necessary to prevent mold and dirt from building up. [1] The cleaning method does vary slightly depending on the type of concrete you’re working with, but proper maintenance will keep your floor clean and fresh, and help increase its longevity in your home, garage, shop, or workplace. [2]

Part 1
Part 1 of 4:

Preparing Any Concrete Surface

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  1. To do a basic cleaning of any concrete floor and to remove stains, you will need some basic cleaning supplies, including:
    • A broom and duster (or a vacuum)
    • A nylon-bristled brush for scrubbing stains
    • Dish soap and water to remove stains
    • Trisodium phosphate, laundry bleach, and detergent to remove mildew
    • Kitty litter or cornstarch to remove grease stains
    • Degreaser to remove tire marks
    • Bleach, ammonia, or hydrogen peroxide for stubborn stains
  2. Remove any furniture, decorations, rugs or mats, shoes, and anything else that’s on the floor. Move everything out of the room so you’re not cleaning around furniture or constantly having to move furniture around to clean.
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  3. Get up all large dirt and debris with the broom, and then go over the surface again with a duster to remove fine particles and dust. [3] Dusting should be done daily, and sweeping or vacuuming on a weekly basis.
  4. For regular food and beverage stains, scrub the area with hot, soapy water. [4] Use one to two tablespoons (15 to 30 ml) of a mild dish soap or Castile soap, diluted into a half-gallon (1.9 liters) of water. For oil or oil-based stains, wet the area with water and cover the stain with dish soap. Dip a brush in warm water and scrub the area to work up a lather. Blot the suds with a rag or towel and rinse it down with clean water. [5]
    • To remove mildew, mix one ounce (28.3 grams) each of laundry detergent and trisodium phosphate with one quart (946.4 ml) laundry bleach and three quarts (2.8 liters) of water. Scrub the area with a soft brush and rinse with clean water. [6]
    • To remove tire marks (in a garage), spray the area with water and apply a degreaser. Let sit for three to four hours, scrub with a brush, and rinse. [7]
    • To remove grease, spread kitty litter or cornstarch over the area and let it sit for about three days. After you’ve let it sit, vacuum or sweep up the kitty litter and dispose of it in accordance with the type of grease it was (such as in the garbage or through a proper recycling facility). [8]
  5. If your concrete floor is plain and you don’t have to worry about damaging a finish, you can use harsher cleaners like bleach, ammonia, and hydrogen peroxide to clean stubborn stains. [9] Dilute one part cleaner in three parts water and spray on the affected area. Let it sit for about 20 minutes, and then scrub with a brush. Rinse the area with clean water.
    • Always wear gloves and proper protective gear when using harsh cleaners, and make sure the room is well-ventilated.
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Part 2
Part 2 of 4:

Cleaning Stamped or Polished Concrete

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  1. You will need a mop and large bucket, warm water, and a mild, pH neutral cleaner. [10] Do not use ammonia, bleach, or any other highly acidic or alkaline cleaner, as it may damage the concrete finish. [11] Good neutral cleaners to use include:
    • Mild dish soaps
    • Castile soap
    • Neutral stone cleaner
    • pH neutral floor cleaners or detergents
  2. Use about one gallon (3.8 liters) of warm water. Stir in one-eighth to one-quarter cup (30 to 60 ml) of mild soap or pH neutral cleaner (or the amount recommended by the manufacturer).
  3. Once it’s saturated, wring it out thoroughly. The mop should be only slightly damp for cleaning the floor: you want the water to dry quickly, and don’t want excess water sitting on the concrete.
  4. Start in a corner farthest from the door and make your way toward the door, cleaning small areas at a time. As you mop, frequently re-dip the mop in the water and wring it out thoroughly. Consider having an oscillating fan blow air into the room to help the floor dry quicker.
  5. When you have cleaned the entire floor, dump out your cleaning water, rinse the mop and bucket, and refill the bucket with clean, warm water. Mop the floor again in the same way with the clean water, dunking and thoroughly wringing out the mop often. [12]
    • Start at the farthest corner and work toward the door again, working in small sections.
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Part 3
Part 3 of 4:

Cleaning a Garage Floor or Exterior Concrete

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  1. You will need a power washer, a push broom with stiff, nylon bristles, and a cleaning product, such as trisodium phosphate or other concrete cleaner. You can use a regular garden hose if you don’t have a pressure washer. Use the hose on full power with a high-powered nozzle.
    • A pressure washer is recommended for this kind of concrete cleaning as it will do a better job. Pressure washers can be rented from home and garden or building stores.
    • Use a regular scrubbing brush with nylon bristles if you don’t have a push broom.
  2. Pull them up with your hands and then sweep, hose down, or pressure wash the surface to remove dirt and debris. [13]
  3. Open your garage door if applicable. Start at the end closest to the house and work your way toward the garage door or lawn. Use the pressure washer or hose and spray the floor in broad, sweeping strokes to remove dirt and debris. Be sure to spray corners, cracks, and crevices as well.
  4. Place your broom at one end of the garage or patio , and begin sprinkling cleaner on the floor starting at the other end, working your way toward the broom. Make sure the floor is still wet when you do this. [14]
  5. Use your broom or brush to work the cleaner into the entire floor surface and lift out any dirt, grime, and debris. [15]
  6. Starting at the inside and working your way toward the open door or lawn, power wash away any excess cleaner and debris. Leave the door open and allow the floor to dry.
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Part 4
Part 4 of 4:

Protecting Concrete Floors

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  1. This will stop people from slipping on the floor and prevent staining. Wipe up spills with a clean rag or towel as soon as they occur. [16]
  2. A high-quality sealant will last a few years, so you should re-seal your floor every three to four years. [17] Sealing your concrete floor will protect it from scuffs and stains.
    • Choose a sealant that’s right for your concrete surface.
    • Use water-based sealants for indoor flooring.
  3. Not only will a wax finish protect the floor from dirt build-up, stains, and abrasion, but it will also protect the sealant underneath so it lasts longer. [18]
    • Apply floor wax in a thin layer and spread it out with a rayon or microfiber mop. Re-apply every year or so. [19]
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Expert Q&A

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  • Question
    How do you dust concrete floors?
    Kadi Dulude
    House Cleaning Professional
    Kadi Dulude is a House Cleaning Professional and the Owner of Wizard of Homes, a New York City-based cleaning company. Kadi has over 10 years of experience and manages a team of over 90 registered cleaning professionals. Her cleaning advice has been featured in Architectural Digest and New York Magazine.
    House Cleaning Professional
    Expert Answer
    Use a vacuum if you have a good one available, as this will be faster and more efficient, and prevent dust and dirt particles from being spread around.
  • Question
    How can I make my concrete floors shine?
    Kadi Dulude
    House Cleaning Professional
    Kadi Dulude is a House Cleaning Professional and the Owner of Wizard of Homes, a New York City-based cleaning company. Kadi has over 10 years of experience and manages a team of over 90 registered cleaning professionals. Her cleaning advice has been featured in Architectural Digest and New York Magazine.
    House Cleaning Professional
    Expert Answer
    Keep them clean! Vacuum your floors, then dry dust them. A dry microfiber cloth attached to a Swiffer mop will work great, for example. Mop by spraying floor cleaner directly onto the floor, such as a 50/50 vinegar-water solution, or use a very lightly damp mop.
  • Question
    Can I use a vacuum cleaner to clean a concrete floor?
    Community Answer
    Of course. You may need to use a broom to dislodge caked on dirt before you vacuum. A shop type vac would work best.
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      About This Article

      Article Summary X

      Before cleaning a concrete floor, move any furniture, rugs, and other objects out of the way. Sweep or vacuum the floor to remove loose debris, then go over it with a duster. Spot clean stains with a scrub brush dipped in a solution of hot water and dish soap. You can also tackle tougher stains with cleaners like bleach, hydrogen peroxide, or ammonia as long as your floor is plain concrete. For painted or finished floors, avoid these harsh cleansers. Rinse the area with clean water when you’re done. For a deep clean, mop the whole floor with warm water and mild soap or a pH neutral stone floor cleaner. For outdoor concrete or unfinished garage floors, blast the floor with a power washer, then scrub it with a solution of water and a concrete cleaner, such as trisodium phosphate. Use a brush or push broom with stiff nylon bristles. Rinse the floor thoroughly with your power washer when you’re done. Keep reading to learn how to clean stamped or polished concrete!

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