How to Level a Concrete Floor: In 6 Steps

Levelling a concrete floor is an essential step in preparing for any type of flooring installation. Whether you’re installing tile, hardwood, carpet, or vinyl, a level surface is key to ensuring a successful and long-lasting flooring project. In this blog, we’ll go over the steps on how to level a concrete floor, so you can achieve a smooth and even surface.

If you require a concrete floor, why not get in touch with us? We provide commercial and domestic concrete and more. 

 

Step 1: Determine the Level of the Floor

Before you begin the levelling process, you need to know how much you need to level the floor. You can do this by using a long level or laser level to determine the high and low spots on the floor. Once you have determined the high and low points, you can mark them with chalk or a marker.

Step 2: Prepare the Floor

Before you begin levelling the floor, you need to prepare it by cleaning it thoroughly. Remove any debris, dirt, or dust from the surface. Use a shop vac to vacuum the floor, and then use a wet mop to clean it. If there are any cracks or holes in the floor, fill them with concrete patching compound and let it dry completely.

 

Applying a diluted PVA adhesive mix or acrylic primer is necessary before levelling the compound. The primer should be applied after the concrete surface has been thoroughly cleaned and any cracks or holes have been repaired. The primer should be applied using a roller or brush, and allowed to dry completely before the levelling compound is applied. This will ensure that the levelling compound adheres properly to the concrete surface and provides a smooth and level base for any type of flooring installation.

Step 3: Mix and Apply the Levelling Compound

Once the floor is clean and dry, it’s time to mix and apply the levelling compound. You can buy levelling compound at any hardware store, and it’s usually sold in bags that you mix with water. Follow the manufacturer’s instructions to mix the compound, and then pour it onto the low spots on the floor. Use a trowel or leveller to spread the compound evenly over the surface, making sure to fill in any gaps or low spots.

Step 4: Allow the Compound to Dry

After you have applied the levelling compound, you need to allow it to dry completely. The drying time will depend on the type of levelling compound you use, so make sure to check the manufacturer’s instructions. It’s important to let the compound dry completely before you move on to the next step.

Step 5: Sand and Smooth the Surface

Once the levelling compound is dry, use a sander or grinder to sand down any rough spots or high points on the surface. This will help to smooth out the surface and create an even surface for your new flooring. After sanding, vacuum the surface to remove any dust or debris.

Step 6: Repeat the Process (If Necessary

Depending on the level of the floor, you may need to repeat the process of applying levelling compound and sanding the surface multiple times until you achieve a completely level surface.

 

In conclusion, levelling a concrete floor may seem like a daunting task, but with the right tools and techniques, it can be a relatively simple process. By following these steps, you can ensure that your new flooring installation will be a success, and that you will have a smooth and even surface for years to come.

How to Level a Concrete Floor for Tiling

Levelling a concrete floor for tiling is an important step to ensure that the finished tile surface is even and free from any lippage. 

Here are the steps to follow to level a concrete floor for tiling:

 

  • Prepare the Surface: Clean the concrete surface thoroughly, and repair any cracks or holes with a concrete patching compound. Once the repairs are done, allow the surface to dry completely.
  • Apply Primer: Apply a diluted PVA adhesive mix or acrylic primer to the surface using a roller or brush. Allow the primer to dry completely before proceeding.
  • Mix and Apply Levelling Compound: Mix the levelling compound according to the manufacturer’s instructions, and spread it evenly over the surface using a trowel. Use a straight edge or level to ensure that the surface is even and level. Allow the levelling compound to dry completely before proceeding.
  • Sand the Surface: Once the levelling compound has dried, sand the surface lightly to remove any high spots or rough patches.
  • Install the Tiles: Once the surface is level and smooth, you can install the tiles using a tile adhesive.

How to Level a Sloping Concrete Floor

Levelling a sloping concrete floor can be challenging, but it’s necessary to ensure that the floor is even and safe to use. 

Here are the steps to follow to level a sloping concrete floor:

 

  • Determine the Slope: Use a level or laser level to determine the degree of slope in the concrete floor.
  • Choose a Levelling Method: Depending on the degree of slope, you may choose to use a self-levelling compound, a mortar bed, or a combination of the two.
  • Prepare the Surface: Clean the concrete surface thoroughly, and repair any cracks or holes with a concrete patching compound. Once the repairs are done, allow the surface to dry completely.
  • Apply Primer: Apply a diluted PVA adhesive mix or acrylic primer to the surface using a roller or brush. Allow the primer to dry completely before proceeding.
  • Mix and Apply Levelling Compound or Mortar Bed: Mix the levelling compound or mortar bed according to the manufacturer’s instructions, and spread it evenly over the surface using a trowel. Use a straight edge or level to ensure that the surface is even and level. Allow the compound or mortar bed to dry completely before proceeding.
  • Sand the Surface: Once the levelling compound or mortar bed has dried, sand the surface lightly to remove any high spots or rough patches.

How Much Does it Cost to Level a Concrete Floor

The cost to level a concrete floor in the UK can vary depending on various factors such as the size of the area, the degree of unevenness, and the method of levelling used. 

 

Here are some rough estimates for the cost of levelling a concrete floor in the UK:

  • Self-Levelling Compound: Using a self-levelling compound can cost anywhere from £15 to £25 per square metre, depending on the product used.
  • Screed: Using a screed can cost anywhere from £10 to £18 per square metre, depending on the thickness of the screed and the type of material used.
  • Professional Services: Hiring a professional to level a concrete floor can cost anywhere from £20 to £50 per square metre, depending on the level of expertise required and the type of levelling method used.
  • It’s important to get multiple quotes from contractors and to choose a method that fits your budget and needs. Additionally, the prices mentioned above are rough estimates and can vary depending on the location and other factors specific to your project. If you are interested in finding out our prices, contact us today.
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