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How to remove grout from tiles

A close up view of clean orange tiles with defined grout lines.

Overview

If you have grout that is chipping or discoloured, you might need to remove it. We show you everything you need to do the job. You will also see what tools are available to make it a bit easier.

Steps

  1. 1

    Choose the right tool

    For small areas, a handheld grout saw is often sufficient. It’s easy to control and ideal for precision work. However, if you're working on a larger area or have stubborn grout, the best grout removal tool will be a multi-tool with a diamond blade attachment which will speed up the process and reduce strain on your hands.
    grout removal tools, including a multi tool with a diamond blade attachment, a handheld grout saw are placed on orange tiles.
  2. 2

    Start removing the grout

    Position your grout saw over the grout line and apply firm, steady pressure. Move the tool back and forth along the grout line. Take your time to carefully remove grout from tiles for the best results without damaging or scratching the tiles.
    A person is using a red handheld grout saw to remove grout from between orange tiles.
  3. 3

    Avoid going too deep

    When working in bathrooms or other wet areas, it’s crucial to take care not to compromise the waterproofing membrane beneath the tiles. This layer is essential for preventing water from seeping through and causing damage to the underlying structure, such as the subfloor or walls.
    A person is using a multi-tool with a diamond blade attachment to remove grout from orange tiles.
  4. 4

    Clear away the dust

    As you work, the grout will grind away and produce dust. Regularly use a vacuum or brush to clear away the debris so you can clearly see your progress and avoid any build-up in the grout lines.
    A person is using a vacuum cleaner to clear away the dust and debris from grout lines on orange tiles
  5. 5

    Finish the removal

    Once you’ve finished, it’s important to clean the grout dust or debris left behind. Use a damp microfibre cloth to gently wipe down the tiles and grout lines, ensuring the surface is clean and free of dust. This step is essential to ensure proper adhesion when applying new grout or undertaking further renovations. Once the area is clean and dry, you’re ready to prepare for regrouting or other updates to your tiles.
    A person is wiping the tiles with a microfibre cloth to clean the grout dust or debris left behind.
  6. 6

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Health & Safety

Please make sure you use all equipment appropriately and safely when following the advice in these D.I.Y. videos. You need to be familiar with how to use equipment safely and follow the instructions that came with the equipment. If you are unsure, you may feel it is safest to consult an expert, such as the manufacturer or an expert Bunnings Team Member.

Grave health hazards are linked to asbestos, which may be in homes built up to 1990. Health hazards may result from exposure to lead-based paints in older materials and copper chromium arsenic (CCA) treated timber. For information on the dangers of asbestos, lead-based paint and CCA treated timber and tips for dealing with these materials contact your local council's Environmental Health Officer.