How to level a concrete veranda without removing existing concrete?

We have a cabin in a holiday park and I want to level my veranda to make better use of the space, we need to get approval for any renovations we do to the outside. Currently the concrete is level with the sliding door, so we can’t go any higher near the door way, but where it slopes down towards the gutter is where I’m looking at leveling it. You can see by the photos that the slope is quite significant. Is there a way we can level this out to be level with the existing slab that runs along the sliding door without removing the sloped concrete slab.?

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Comments

JacobZ

Hi @Gazza55,

Welcome to the Bunnings Workshop community, it is wonderful to have you with us.

When it rains, do you get any water on that slab? I suspect it was poured that way to ensure water doesn't pool on it or flow back towards the door. Levelling it out could affect drainage, so I would suggest you consider this before making any decisions.

There are concrete levelling products that are applied over the top, but they cannot be used as finished floor surfaces and would need a covering such as tiles or pavers. Considering the height of the door in relation to the slab, I don't think this is an option.

The only way I can see to level the slab is to speak with a business that specialises in slab jacking, which is a way of lifting sunken concrete back to its original position, then supporting it to ensure it stays there. If the slab was intentionally poured with this slope, I am not sure whether this would be possible or not, but it is the only method I am aware of that might be a possibility, so it is worth contacting some companies to see what they think.

Unfortunately, I don't know of a D.I.Y. fix.

Allow me to tag our helpful members @AlanM52, @Dave-1 and @Nailbag to see if they have any thoughts or ideas.

Let me know what you think and if you have further questions, please don't hesitate to ask.

Jacob

AlanM52

Good evening @Gazza55,

Screenshot 2026-01-31 193403.jpg

Jack Matrix 2410 x 1205 x 7mm Charcoal Classic Diamond Lattice

I am thinking about something like that (or similar) right across the whole lot from sliding door to concrete edge, supported and levelled with window packers and 'partly' fixed with building adhesive. We need opinions about the feasibility of that idea because it is polypropylene plastic and anything metal may be out of you budget.

Cheers

Nailbag

Hi @Gazza55

Not to these dimensions, but I have used self-levelling compound extensively in spaces nearly as big which where then finished with tiles as @JacobZ suggested.

I think this will be your most flexible solution as you have greater control over height management to where you want the top surface to finish. There are some great natural feel tiles that have a stone like non-slip surface that would be also worth considering.

Nailbag

Dave-1

Good Evening @Gazza55

I have been trying to figure a way to fix a leveling compund to the slope of the concrete slab. But then I run into issues with water against the door itself if it rains. Maybe if you drill and screw in some masonary anchors acrisss the area, especially the deeper section. Plus give a permanant edge to the slab that you are filling you could use leveling compound in several batches to raise and have it as a less of a slope? I dont know how long it would last without tiles on it (and back to the issue with the level of the door)

Dave

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