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Floor Levelling and Screeding

worker doing floor leveling screeding

Levelling your floor is the first step to creating a perfect bathroom – even if you ultimately want to lay a self-draining floor surface on top of that.  Levelling not only makes the floor feel right (and remember you'll be barefoot so more sensitive to differences in level) but also makes it work right since the last thing you want in a wet room is an uneven floor that helps the water to pool and collect in places where it then has more chance to seep through the floor.

Before Levelling

Before we level a floor, we like to look at why it needs levelling in the first place because there's no point putting a sticking plaster on a broken leg.  A lot of levelling work is not because of anything sinister but is required due to natural ageing in a house, including settling. Sometimes, however, it is down to wood decay in the joists and in bathrooms that are frequently because the old floor wasn't properly waterproofed.

So water got into the timbers and softened them until they could no longer support the floor properly. If that's the case, the joists themselves will need to be replaced before we get to the levelling job itself.  It's also an excellent argument for getting us to thoroughly waterproof your flooring as part of levelling the new floor. Let us conduct an on-site assessment, and we'll be able to tell you exactly what needs to be done.


There's a lot of confusion between concrete and screed. Homeowners often ask us why we don't just level the concrete slab floor. That's understandable since both concrete and screed are essentially cement plus water to create a solid layer. The difference is in the aggregates used since concrete is all about strength. It uses much coarser aggregate mixes to achieve that.  So you have your concrete slab floor, but for a really level surface. Like a bathroom floor, we then apply a level of screed over the top. Levelling a concrete slab, if it is out of whack, can be done by several techniques. This including tilting the slab itself with risers underneath, before applying the screed to get that perfectly flat surface.


Screed is usually applied as a top layer on top of the concrete. It's typically Portland cement and sand of a fineness. That ensures a smooth surface and a texture that we work with. It gets an absolutely level surface on top of the slab. We're experts in creating perfectly smooth and level screed surfacing for your bathroom or utility room.

Laser Levelling

Because a perfectly level surface is needed, not only to correct settling and avoid water pooling but to give a perfect platform for things like tiling. Laser levels, as the name implies, are used in building projects to level surfaces such as floors, doors, windows or shelves, to name a few. We use laser levelling to ensure absolutely one hundred per cent flat floors. On a perfectly level floor, you should be able to put a glass marble down. It will not roll even on a perfectly shiny surface. That's what we achieve every time.


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