Tiling Over Tiles: Is It a Good Idea & How You Can Do It

How to tile over tiles
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Dealing with an exhausting house renovation may not be the best way to spend a weekend. Especially when the kitchen or bathroom are involved. Removing old tiles is a messy and strenuous job, so tiling over existing tiles is a great way to redo the space faster.

Such a project can help cut off the hassle, the dirt and the expenses altogether! However, there are some pitfalls to watch out for, so keep reading on if you want to know more about the pros and cons of tiling over tiles, the process itself, etc.

Can you tile over tiles?

Yes, you can and it can be great for a fast room update, too. Saving time and effort is always a good idea, as pulling the existing tiles is hard labour.

However, there are factors to consider before choosing this method for a bathroom or kitchen update. To help you decide better, read the pros and cons and determine if you should tile over existing tiles.

Pros

  • One of the main advantages of tiling over existing tiles is that it is time-saving. This more straightforward solution will save you the headache of removing the old tiling, installing the new ones and spending a great deal of time cleaning afterwards.
  • Another advantage of this renovation technique is its affordability. It is cost-effective because you can avoid renting heavy stripping machines that could be hazardous when improperly used.

Overall, this method is DIY-friendly and a great way to spruce up the bathroom or kitchen space. Still, there are some factors to consider before you make your final decision.

Cons

  • Laying tiles over old tiles would result in adding extra height to your floor. This may become an issue if the new floor level starts blocking the doors or cupboards. Chances are they have already been levelled to the old flooring.
  • Another drawback could be the step to the bathroom entrance becoming too high and a hazard accident spot.
  • Your existing tiles must be in relatively good condition – evenly placed and without cracks to retain moisture if you consider going the DIY way. Tiling over badly damaged or uneven tiles won’t improve the room but will cause further complications and possible repairs.

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How to tile over existing tiles

Before you start, inspect the state of the existing tile flooring. Check for any loose tiles by tapping each of them and wait for a hollow sound. If you hear any, you can still lay tiles over them. However, a good rule of thumb is to allow no more than 5% of hollow areas. If there are a lot of loose tiles, consider replacing them before the tiling overwork starts.

Here’s what you will need:

  • Clean cloths
  • Gloves
  • Water
  • Mild detergent
  • Primer
  • Tile adhesive
  • Grout
  • Trowel

Clean and prepare the area

Before you start laying tiles, you need to clean the existing floor thoroughly. Don’t undermine this step – you will thank yourself later with cut off time for drying and cut off risk of mildew/bacteria built. Use a vacuum cleaner for collecting sand and other debris and then wash with water and detergent. Rinse and dry well.

Remove all the furniture and check for unevenness. Pack up with glue on the surface that needs levelling out. For a stronger bond between the two layers of tiles, you can apply a layer of primer on the old tiling and let it dry.

Lay in stages

No need to rush with the groundwork. It is best to lay the new tiles one by one, as drying time may vary. Also, do not waste a lot of time once the bonding agent is applied on the tile or it may dry before you can install it. “Draw” straight lines along the wet surface with the edge of your trowel – the grooves aid with the drying and adhesion process.

Position the tiles as you go

Set each tile on the freshly scored adhesive and press firmly to the floor. Repeat the same process until all new tiles are in place. If your original tiling is in perfect condition, you can apply adhesive directly to the back of your new tile.

Seal off your work

The finish is applying grout in the grooves between the tiles. Using grout is an essential step for protecting the floor from moisture and mildew growth. Choose an already mixed grout from the hardware store – it will save you time and effort. Quickly apply it in a single round.

Here are a few more pointers to consider:

  • Get professional advice if the base is plasterboard – with a maximum weight limit per square centimetre, two layers of tiles could result in structural damage.
  • Adhesive for laying tiles over tiles is different from what’s used for the first laying. Choose the type of bonding agent well. Generally, it’s advised to use the same adhesive brand as the primer. The adhesive used for tiling over existing tiles consists of two types: matt finish and gloss finish.
  • Make sure you calculate the floor raising (3 cm on average) in the equation – remove doors and bathroom storage units to trim off where necessary.

Takeaway

  • Laying tiles on tiles is a time and money-saving renovation method, as long as you work on a generally sound floor.
  • Take your time inspecting the surface for mildew, uneven or strangely-placed tiles. The surface should also allow the new layer’s added weight.
  • The main drawback – the raised floor is solved with proper measurement and trimming the bottoms of doors and furniture.
  • As long as you measure carefully, assess your old flooring condition and have some basic handyman skills, there is no reason that laying tiles over existing tiles should create any issues.

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Odette
Odette
2 years ago

Thank you so much for this! I’m getting ready to do my kitchen floor and was second guessing if I can do it. With your article, I feel more confident. Much appreciated you sharing this 🙂

Pam Roth
Pam Roth
2 years ago

Question – what is the appropriate tile/whatever for the transition to the old floor (at the doorway)?

The Fantastic Team
Admin
1 year ago
Reply to  Pam Roth

For transitions, people usually use transition strips. If you’d like to experiment with colours, you can do a mosaic tile floor transition, especially if the two rooms have different colour schemes.

keith woolard
keith woolard
1 year ago

I was thinking of putting a 6mm tile underlay on top of the existing tiles as I have no door height issue. Thoughts please

The Fantastic Team
Admin
1 year ago
Reply to  keith woolard

Hi, Keith! Did you manage to deal with this problem? 5-6mm is usually the ideal for most people. It depends on how uneven is the floor, that plays the biggest role when determining the thickness.

Petalpusher
Petalpusher
1 year ago

Did this in my home back in 2014. My installer suggested we overlay the new tile on top of the existing kitchen tile that had been in place (no cracks or chips) since 1997. It has worked out perfectly and saved me a bunch of money and headache.

The Fantastic Team
Admin
1 year ago
Reply to  Petalpusher

We’re glad to hear it worked out for you. Thank you for sharing!

Brian
Brian
1 month ago

Hi is it possible to put mosaic tiles over tiles in a wet room area

The Fantastic Team
Admin
1 month ago
Reply to  Brian

Hi, Brian. It doesn’t matter the type of the tiles actually, it’s all about the technique. The only concern should be whether the existing tiles are in good condition, so you have an easy surface to work on. And yes, you can use mosaic tiles in a wet room. We actually think they’re quite suitable because they’re easy to clean and as a bonus, you can create interesting patterns. The only tiles we wouldn’t recommend for a wet room are ceramic tiles.

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