Why Do Tiling Problems Happen in the First Place?
There’s nothing more frustrating than stepping back after a tiling project only to notice uneven tiles, hollow sounds underfoot, or grout already starting to crack. The truth is, most tiling issues don’t come down to the tiles themselves. They’re usually caused by what’s happening underneath or how the installation was handled.
At Spacers Tile and Wood Flooring, we regularly speak to customers who are trying to fix problems that could have easily been avoided from the start. The good news? Once you understand what causes these issues, avoiding them becomes much simpler.
Lippage: When Tiles Just Don’t Sit Right
One of the most noticeable tiling issues is lippage where one tile edge sits higher than the next. It might seem like a small detail, but it can completely affect the look (and feel) of your floor or wall. This is especially common with large format porcelain tiles, which are popular for their clean, modern finish.
Lippage usually comes down to an uneven subfloor or incorrect installation techniques. If the surface underneath isn’t perfectly level, the tiles won’t sit evenly no matter how carefully they’re placed.
That’s why preparation is everything. Using a self-levelling compound and the correct trowel size can make all the difference. Many installers also use tile levelling systems to keep everything aligned as the adhesive sets.
Hollow Spots: The Problem You Can’t Always See
Sometimes a tiled floor looks perfect—but doesn’t feel right.
If you tap on certain tiles and hear a hollow sound, it’s a sign they haven’t bonded properly to the surface beneath. These hollow spots are often caused by poor adhesive coverage or air pockets trapped during installation.
While it might not seem like a big issue at first, hollow tiles are far more likely to crack under pressure over time.The key to avoiding this is proper adhesive application. Tiles should be firmly pressed into place, and for larger formats, back-buttering the tile (applying adhesive to the back as well as the floor) helps ensure full contact.
Cracking Grout: A Sign Something Isn’t Right
Grout isn’t just there to fill gaps it plays an important role in holding your tiled surface together. So when grout starts to crack, it’s usually a sign of movement underneath.
This could be due to:
- A flexible or unstable subfloor
- Incorrect grout selection
- Adhesive not fully cured before grouting
In areas like kitchens, bathrooms, or rooms with underfloor heating, using a flexible grout is essential. It allows for slight movement without cracking, helping maintain both the appearance and durability of your tiles.
Adhesive Failure: When Tiles Start Lifting
One of the more serious issues is adhesive failure, where tiles begin to lift or completely detach from the surface.
This is almost always preventable and usually comes down to incorrect product choice or poor preparation. For example, porcelain tiles require stronger, more flexible adhesives than standard ceramic tiles. Skipping primer or installing onto a dusty or damp surface can also weaken the bond.
At Spacers Tile and Wood Flooring, we always emphasise the importance of using the right adhesive for your specific tile and substrate. It’s a small decision that has a huge impact on long-term performance.
Why Subfloor Preparation Is Everything
If there’s one takeaway from all of this, it’s that most tiling problems start before a single tile is laid.
A properly prepared subfloor should be:
- Clean and free from dust or debris
- Completely level
- Structurally sound
- Suitable for the chosen adhesive system
Skipping any of these steps increases the risk of lippage, hollow spots, and adhesive failure.
It’s not the most exciting part of a project but it’s by far the most important.
Choosing the Right Products Makes a Huge Difference
Not all adhesives, grouts, and preparation materials are the same.
The right combination depends on:
- The type of tile you’re using
- The size and weight of the tiles
- The environment (wet areas, underfloor heating, etc.)
- The condition of your subfloor
Using high-quality, compatible products ensures everything works together as a system—not against each other.
DIY vs Professional Installation
Tiling can be a rewarding DIY project—but it’s also one where small mistakes can lead to big problems. Large format tiles, in particular, require precision and the right techniques to avoid issues like lippage and poor adhesion. If you’re unsure at any stage, getting expert advice can save you time, money, and frustration later on.
Getting It Right from the Start
The difference between a good tiling job and a great one often comes down to preparation and attention to detail. By taking the time to properly prepare your surface, choose the right materials, and follow best practices, you can avoid the most common tiling problems altogether.
At Spacers Tile and Wood Flooring, we’re here to help you get it right from the very beginning. Whether you’re working on a kitchen, bathroom, or full home renovation, our team can guide you through the process with expert advice tailored to your project. If you’re based in Maidenhead, Ruislip, or High Wycombe, visiting one of our showrooms is the best way to see your options and make confident decisions.
Final Thoughts: A Flawless Finish Starts Below the Surface
Tiling isn’t just about how it looks on the surface—it’s about how well everything works underneath. Avoiding issues like lippage, hollow spots, cracking grout, and adhesive failure isn’t complicated—it just requires the right approach from the start. Do it properly, and your tiles will look just as good years down the line as they do on day one.
Don’t hesitate, contact us for any assistance…
Ruislip: 01895 621 651
Maidenhead: 01628 624 546
High Wycombe: 01628 624 546
Find your local showroom near you:
Ruislip Tile and Wood Flooring Showroom – Spacers Showrooms
Maidenhead Tile and Wood Flooring Showroom – Spacers Showrooms
High Wycombe Tile and Wood Flooring Showroom – Spacers Showrooms