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Why Proper Concrete Floor Preparation Is Important

Drilltec are here to discuss the importance of preparing concrete floors before going ahead with any work. We have put together a list of the things that you should look out for and how to ensure that the floor is ready, to achieve the optimal coating and long lasting sealing or application for a healthy, new floor.

Uneven floors

It’s vital to ensure that the surface is flat before applying an extra layer of cement to cover those potholes or other damages. If the floor is uneven, the application of more concrete will only exacerbate this problem further and create bigger health and safety issues than before.

Laitance – is the top layer on the cement that can set about 3mm deep which needs to be removed once the concrete has set. This layer is formed from small pieces of aggregate that come to the top of the surface when a substantial amount of water has been applied. This layer is extremely weak and if it is left, it will affect the performance of the flooring and could fail over time. So it’s important that the floors are smooth and flat for the best possible results.

Old painted surfaces

It is essential to remove any paint before trying to re-apply a concrete layer with a pressure washer and chemicals. However, it must be done professionally to ensure that the surface is smooth and ready for a new layer.

Contaminated concrete

Concrete becomes contaminated when dust and dirt infiltrate the mixture, creating huge problems when the adhesive tries to attach and set. It will cause weak patches that’ll take you back to square one.  


If the surface needs a recoat of concrete, then you know it’s already in a bad condition. If you’re placing machinery on an uneven surface, there’s no doubt that it’s more likely to fall over or break than it is if it were on a flat surface.

Wherever this uneven floor is situated – be it a driveway, stockroom, or worksite – it’s important to keep a smooth, flat surface to ensure that you don’t ruin your car tyres, your stock doesn’t topple over and that the machinery used on site isn’t damaged by easily avoidable accidents.


Lots of water is used to hydrate cement, but to ensure it’s sealed appropriately the moisture levels must be just right.

Health and safety

Last but by no means least, you’ll need to take measures to ensure that you and others are not at risk. Minimise accidents by taking the right procedures before laying a concrete floor.

Drilltec Diamond Drilling strive to inform others about the necessary steps that must be taken before tackling any job because this is a key aspect to providing a seamless finish every time. This is why you can count on our professionals to provide you with nothing but the best, as we always make sure that health and safety checks are in order before starting on and completing a job to the highest standard. If you would like more information and expert advice, please give us a call today.