Good preparation is key to achieving a long-lasting tiled floor. Taking time to prepare the surface, plan the layout and use the correct tools will help ensure a professional finish.

What you’ll need

Notched trowel, tiles, spacers, spirit level, bucket, mixing drill, sponge, tape measure, tile cutter, grouting float, rubber mallet and clean water.

1. Preparation & planning

• Prepare the surface: Ensure the floor is clean, level and solid. Remove loose material and repair low spots using a self-levelling compound. For wooden sub-floors, install cement backer boards.

• Prime: Apply a suitable tile primer to seal the surface and improve adhesion.

• Plan the layout: Mark the centre of the room and dry-lay tiles to plan cuts, avoiding small slivers at edges.

2. Tiling

• Mix adhesive: Mix cement-based adhesive with water to a smooth, lump-free consistency.

• Apply adhesive: Using a notched trowel at a 45° angle, comb adhesive onto the floor in sections of around 1m². Press tiles firmly into place with a slight twist.

• Large tiles: Butter the back of large format or deep-studded tiles to improve adhesion.

• Check levels: Use spacers, check with a spirit level and tap down high spots using a rubber mallet.

• Clean as you go: Remove excess adhesive with a damp sponge.

3. Grouting & finishing

• Allow adhesive to cure: Follow drying times on packaging.

• Grout joints: Apply grout using a rubber float, forcing it into joints. Wipe tiles clean with a damp sponge.

• Remove haze: After 15–20 minutes, wipe away grout haze.

• Final drying: Leave the floor to dry fully (around 72 hours) before heavy use.

Key tips

• Comb adhesive in one direction to release air.

• Avoid swirling with the trowel.

• Work in small sections to prevent drying.

• Use the correct notch size for tile size.