How to clean mildew & mold from a concrete driveway

Written by melynda sorrels
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How to clean mildew & mold from a concrete driveway
Mold on your driveway is unsightly and could get tracked inside. (brown and white house image by Stephen Orsillo from

In nature, mould and mildew have a purpose. That purpose is aiding in the decomposition of leaves and other plant debris. Mold and mildew thrive in warm, damp places, so if you live in a warm humid area, mould spores can be just about anywhere. If mould and mildew get onto your driveway, in addition to making your driveway look filthy, they can stick to your shoes and be transported into your home where they can cause bigger problems. Removing mould and mildew from your driveway is chore that's time consuming but not difficult.

Skill level:
Moderately Easy

Things you need

  • Garden hose
  • Coarse brush or push broom
  • Powdered washing powder
  • Baking soda

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  1. 1

    Wet the moulded area with a garden hose to dampen the area and keep mould spores from coming up into the air and getting on you.

  2. 2

    Scrub the area with a coarse brush or push broom to loosen the mould from the driveway.

  3. 3

    Rinse the area with hose to wash the mould away from the cement.

  4. 4

    Sprinkle powdered washing powder liberally over the mould-stained area.

  5. 5

    Scrub the detergent into the cement with the brush or push broom to remove the stain.

  6. 6

    Rinse the area and allow it to dry completely. If the moulded area is on a shaded part of your driveway where the sun can't readily help the water evaporate, soak up as much of it as you can with a towel. Sprinkle baking soda over the area to absorb moisture and sweep it up when the area is dry.

Tips and warnings

  • Wear gloves, protective glasses and a mask when cleaning mould and mildew.

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