Who this guide is for
- Homeowners hiring a tiler for a bathroom, kitchen or floor
- People comparing several tiling quotes
- Anyone unsure what to ask beyond price
- Renovators coordinating tiling with other trades
Questions about surface preparation
Tiles are only as sound as what they are fixed to. Ask how the tiler will assess and prepare the substrate, how they handle unevenness, and what preparation is included in the quote.
A tiler who talks readily about substrate and preparation is signalling that they understand where tiling succeeds or fails.
- How the substrate will be assessed
- How unevenness is addressed
- What preparation the quote includes
- Suitability of the surface for tiling
Questions about waterproofing in wet areas
In showers and wet zones, waterproofing beneath the tiles is critical and is a professional responsibility. Ask how waterproofing will be handled in wet areas and how it is detailed at junctions and corners.
This is the single most important area to probe for bathrooms, since failures here are hidden and costly. Treat it as non-negotiable.
- How wet areas are waterproofed
- Detailing at junctions and corners
- Who is responsible for waterproofing
- Why this matters in showers
Questions about layout and tile choice
Layout decisions, where the pattern centres, how cuts fall and where tiles meet edges, shape the finished look. Ask how the tiler plans the layout and handles awkward areas.
Confirm whether the tiles you have chosen suit the application and how the tiler will set out the room before fixing.
Questions about grout, scope and aftercare
Ask about grout choice, sealing where relevant, and how long before the area can be used. Clarify scope, including removal of old tiles, disposal and any preparation by others.
Discuss aftercare so the finished tiling stays in good condition, and get key points in writing.
Tiler question checklist
- 1Ask how the substrate will be assessed and prepared
- 2Ask how unevenness is handled
- 3Confirm how wet areas will be waterproofed
- 4Ask about detailing at junctions and corners
- 5Discuss layout and how cuts will fall
- 6Confirm the tiles suit the application
- 7Clarify scope: removal, disposal, preparation
- 8Ask about grout, sealing and aftercare
Common mistakes to avoid
- Asking only about price and the look
- Skipping questions about the substrate
- Failing to probe waterproofing in wet areas
- Ignoring layout and how cuts fall
- Assuming any tile suits any application
- Leaving removal and aftercare unclarified
When to involve a professional
- Tiling should be carried out by qualified professionals
- Waterproofing in wet areas is critical and a professional responsibility
- The right approach varies by surface, room and location
- This guide does not endorse, rank or recommend any tiler
- Costs, timelines and guarantees vary by provider
Frequently asked questions
Questions readers ask about this topic
What is the most important thing to ask a tiler?
In wet areas, how they will handle waterproofing beneath the tiles, since failures there are hidden and costly. More broadly, how they assess and prepare the substrate matters most, because tiles are only as sound as what they are fixed to.
Why does waterproofing matter so much?
In showers and wet zones, waterproofing behind the tiles protects the structure from hidden water damage. It is a professional responsibility, and it is the area to probe most carefully when hiring a tiler for a bathroom.
Should I ask about layout before fixing?
Yes. Layout decisions affect where the pattern centres, how cuts fall and where tiles meet edges, all of which shape the finished look. Ask how the tiler will set out the room and handle awkward areas.
What about grout and aftercare?
Ask about grout choice, any sealing, and how long before the area can be used, plus what aftercare keeps the tiling in good condition. Clarify scope too, including removal and disposal, and get key points in writing.
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