Install plain tiles.

Investing in professional installation ensures your surfaces are not only aesthetically pleasing but also fully waterproof and durable. This guide covers everything from current UK market rates to the technical standards your tiler should follow.

What Does the Work Involve?

• Substrate Assessment: Checking the floor or wall for level, moisture content, and structural integrity.
• Surface Preparation: Removing old tiles, priming surfaces, and applying self-levelling compound or tile backer boards where necessary.
• Setting Out: Calculating the "dry lay" to ensure balanced cuts at the edges and avoiding awkward "slivers" of tile.
• Adhesive Application: Selecting the correct adhesive (e.g., rapid-set or flexible) and applying it with the appropriate notched trowel.
• Tile Fixing: Carefully laying the tiles with consistent spacers to maintain uniform grout lines.
• Grouting and Finishing: Filling the joints with grout, cleaning the tile faces, and applying silicone sealant to internal corners and junctions.

Typical Costs

Prices for tile installation in the UK vary based on your location and the type of tile being used. Porcelain is generally more expensive to install than ceramic due to its hardness and the need for specialist diamond drill bits and blades.

Factors that increase the price include the use of large-format tiles (which require two-man lifting), intricate "herringbone" or "brick-bond" layouts, and the need for extensive tanking (waterproofing) in wet rooms.

How Long Does It Take?

• Small Kitchen Splashback: 1 day (including grouting).
• Standard Bathroom Floor: 1 to 2 days (depending on drying times).
• Large Kitchen/Diner Floor (30m²): 3 to 5 days.
• Full Wet Room Tiling: 5 to 7 days (including waterproofing stages).

DIY or Professional?

While a confident DIYer can handle a small, flat splashback, floor tiling is significantly more challenging. Incorrectly prepared floors can lead to "lippage" (uneven tile edges) or cracked grout within months.

Professional tilers use specialist equipment like wet saws and laser levels that ensure a finish DIY tools simply cannot match, especially with large-format plain tiles where errors are obvious.

If you are working in a bathroom, professional installation is vital to ensure the area is 100% watertight. Failure to follow British Standard BS 5385 can lead to leaks that damage the structural timber of your home.

Choosing the Right Tradesperson

• Check Qualifications: Look for NVQ Level 2 or 3 in Wall and Floor Tiling or membership in The Tile Association (TTA).
• Verify Experience: Ask to see a portfolio of recent work, specifically looking for straight grout lines and neat corner cuts.
• Red Flags: Be wary of tilers who suggest "dot and dab" (putting spots of adhesive on corners) rather than full-bed contact, as this leaves voids that cause tiles to crack.

3 Questions to ask your tiler:

• Do you include the cost of decoupling membranes for underfloor heating?
• How do you plan to handle the internal corners—silicone or grout? (It should always be silicone).
• What type of substrate preparation is included in the quote?

UK Regulations

• BS 5385: The British Standard for the design and installation of wall and floor tiling. It dictates everything from adhesive choice to expansion joints.
• Part M (Building Regs): Relevant if you are installing tiles as part of an accessible bathroom or "wet room" conversion.
• Document P: If the tiler needs to move electrical sockets (common in kitchen splashbacks), they must be qualified or have the work signed off by an electrician.

Common Problems

• Lippage: When one tile edge sits higher than its neighbour, creating a trip hazard and a poor look. This is usually caused by an unlevel subfloor.
• Grout Cracking: Often caused by movement in the subfloor. Using a decoupling membrane or flexible adhesive can prevent this.
• Efflorescence: A white salty residue that can appear on grout lines, often due to moisture trapped behind the tiles during installation.
• Adhesive Failure: Using the wrong adhesive for the substrate (e.g., using standard adhesive on a calcium sulphate screed without priming).

Frequently Asked Questions