Fireplace Levelling

[BarryBarrington]

Hello all,
First time DIYer here looking for advice on how to level this fireplace ready for tiling.

I'd like to know the best way to bring up and level the fire pit area to the same level as the hearth extension, and what is the best way to prep the hearth extension for tiling.

The old gas fire has been removed and the connector sealed. Can that be covered over?

Many thanks for reading the post