Category: Kitchen Tile

Can You Tile Over Existing Tiles? Our Professional Advice

 

Can you tile over existing tiles? Yes, it is technically possible in some situations. However, at Gun Tiling, we generally recommend removing old tiles before installing new ones, particularly when the condition of the surface underneath is uncertain.

Keeping the old tiles might seem like an easy way to save time and reduce disruption. But a new tiled finish still depends on the strength of everything beneath it. Covering an existing surface can leave problems in place and make them harder to address later.

If you are planning a tiling project in Perth, here is what to consider before deciding whether to tile over tiles or start with removal.

Is tiling over existing tiles technically possible?

Tiling over existing tiles, sometimes called tile-on-tile installation, uses the old tiled surface as the base for a new layer. It can work when the existing installation is sound and the proposed preparation and adhesive system are suitable.

That requires more than tiles that look tidy. A professional assessment needs to consider their bond to the base, signs of movement, the condition of the supporting surface and whether the extra thickness and weight are appropriate for the area.

A suitable installation method also needs to follow the relevant product manufacturer’s instructions. An adhesive designed for one surface or application should not be assumed suitable for another.

Why we generally recommend removing old tiles

Our preference is to establish a sound base before installing a new finish. Removing existing tiles gives us better access to inspect the substrate, meaning the surface that supports the tiling, identify any latent defects and determine the preparation needed.

With tile-on-tile installation, the new work continues to rely on the original installation. If the old tiles lose their bond, the new layer can be affected too. A strong adhesive on top cannot repair a weak bond underneath.

There are practical considerations as well. Adding tiles and adhesive changes the finished floor height. Door clearances, adjoining floors, thresholds and access to appliances all need checking. On walls, extra thickness can affect fittings and finished edges, while the supporting surface must be suitable for the additional load.

Removal takes additional work upfront, but it allows those details to be considered as part of the full renovation rather than worked around afterwards.

Hidden issues beneath existing tiles

An older tiled surface can conceal latent defects—hidden issues that may not be apparent during a surface inspection. These may include loose sections, cracks in the substrate, previous repairs or moisture damage.

Cracked grout, lifting tiles and hollow sounds when tiles are checked can signal that further investigation is needed. A surface check helps identify concerns, but it does not establish the condition of every concealed layer.

In bathrooms and showers, the waterproofing deserves particular attention. A new layer of tiles does not fix a leaking waterproofing system. If there are signs of water damage or uncertainty about the existing system, the cause needs to be investigated before new tiling begins.

Learn more about our waterproofing services

Proper surface preparation still matters

Tiling over tiles does not eliminate preparation. Existing surfaces can carry grease, soap residue, sealers or coatings that interfere with adhesion. Glazed and other smooth tiles also need a preparation method suited to the chosen installation system.

Depending on the surface and products, preparation may involve thorough cleaning, mechanical abrasion, priming or levelling. The manufacturer’s instructions determine the required approach. Applying a bonding primer alone is not a remedy for loose tiles or a damaged base.

When tiles are removed, preparation remains just as important. Adhesive residue, uneven areas and substrate damage need to be assessed and addressed before installation. Removing tiles creates access to the base; preparing that base correctly is what makes it suitable for new work.

Read how a professional tiling project works

When tile removal is the better option

We generally recommend tile removal when:

  • Existing tiles are loose, lifting or showing signs of failure.
  • Cracks or movement need investigation.
  • There are leaks, moisture damage or concerns about waterproofing.
  • Floor levels, drainage falls or transitions need correcting.
  • The additional height or weight would create problems.
  • The renovation involves changes to plumbing, fixtures or the room layout.

For a full bathroom renovation or a substantial flooring update, removal often provides a more practical starting point. It allows the preparation, waterproofing where required and finished levels to be planned around the new installation.

Explore our tile removal services in Perth

Long term durability and performance

A quality tiling job should perform well through everyday use. That depends on the supporting surface, appropriate materials, correct installation and provision for movement, as well as the visible finish.

A properly assessed tile-on-tile system can perform successfully in suitable conditions. Our concern is the uncertainty that comes with retaining an older installation, particularly when its condition or history is unclear.

At Gun Tiling, we focus on preparation and workmanship that support a lasting result. We would rather explain the work a project needs at the start than leave an underlying issue to affect your new tiles later.

Finished balcony floor with new tiles.Balcony floor with broken and lifted tiles before the work.BeforeAfter↔
AfterBefore

Drag the divider to compare before and after. Photos taken from different angles.

Take a look at the before and after of this balcony project, where latent defects called for a complete rework. Gun Tiling removed all existing tiles and rebuilt the installation with correct waterproofing, drainage falls and new tiles.

Frequently asked questions

Do I need to remove old tiles before retiling?

Not in every case, but removal is often the better option when the existing installation is damaged, poorly bonded or unsuitable for the new work. A professional assessment should determine the approach before installation begins.

Can you tile over existing tiles in a bathroom?

It may be possible in suitable conditions, but waterproofing, drainage and finished levels need careful assessment. Tiling over a bathroom surface should never be used to cover a leak or avoid investigating water damage.

Is it cheaper to tile over tiles?

It can reduce removal and disposal costs upfront. However, cleaning, preparation, suitable installation products and adjustments to levels or fittings may still be needed. Compare the complete scope of work before deciding which option offers better value.

Can you tile over cracked or loose tiles?

Cracked or loose tiles need investigation and appropriate remedial work. Installing another layer over them leaves the cause unresolved and can put the new finish at risk.

Does tiling over existing tiles fix waterproofing?

No. New tiles do not repair an underlying waterproofing failure. The source of a leak needs to be identified and an appropriate repair or replacement system planned.

How long will tiles laid over tiles last?

There is no reliable lifespan that applies to every installation. Performance depends on the original base, preparation, installation system and conditions of use. The suitability of the existing surface matters more than a general estimate of years.

Get the right advice before you retile

If you are weighing up whether to tile over tiles or remove them, Gun Tiling can assess your project and explain the preparation required. We provide professional wall and floor tiling, tile removal and waterproofing services across Perth, with careful attention to the work beneath the finished surface.

Contact Gun Tiling to discuss your project and request a free quote.

What Affects the Cost of a Tiling Project?

10 Factors That Influence Your Quote

The cost of a tiling project is shaped by much more than the number of square metres. A professional tiling quote considers the tiles being installed, the condition of the surface, the room, the layout, access to the site and the preparation needed before installation can begin.

If you are researching tiling costs in Perth, it is useful to understand how tiling quotes are calculated. Two areas of a similar size can require very different amounts of labour, materials and planning. A clear quote should reflect the actual scope of the work so there are fewer surprises once the project is underway.

Below are ten of the main factors that can influence your quote.

1. Size of the Area

The total wall or floor area is an important starting point because it affects the amount of tile, adhesive, grout and labour required. Measurements also need to account for the full installation area, including returns, recesses, steps and other surfaces that may not be obvious from a basic room dimension.

A larger, open floor may create efficient working runs. A smaller bathroom can contain more corners, fixtures and detailed cuts within each square metre. This is why area alone does not provide a complete picture of the work involved.

2. Type and Size of the Tiles

Ceramic, porcelain, natural stone, large-format tiles and mosaics each need a suitable installation approach. Tile weight, thickness, edge type, surface variation and intended application can influence handling, cutting, preparation and the products used.

Large-format tiles may require careful substrate preparation, handling and levelling to achieve a consistent finish. Mosaics involve many joints and can take more time around sheets, edges and transitions. Natural stone may need additional care and, depending on the product, sealing or other material-specific steps.

Choosing the tile early helps the tiler assess the job accurately. Gun Tiling’s tile supply service connects customers with tile options, and the wider range at Gia’s Bathrooms & Tiles can help homeowners compare sizes, finishes and applications before the quote is finalised.

3. Floor Tiling Versus Wall Tiling

Floors and walls present different installation conditions. Floors need to be assessed for flatness, movement, levels, transitions and the way the tiled surface will meet adjoining finishes. Wall tiling can involve vertical set-out, corners, niches, windows, fittings and finished edges.

The quote should identify which surfaces are included and the preparation each one requires. For larger floor areas, learn more about Gun Tiling’s professional floor tiling in Perth.

4. The Room and How It Is Used

A bathroom, kitchen, laundry and living area may have a similar tiled area but a different scope. Bathrooms and laundries can involve wet-area details, floor wastes, falls, penetrations and coordination around fixtures. Kitchens often require careful splashback set-out around cabinetry, power points and windows. Living areas may involve long sightlines, doorway transitions and large continuous floor sections.

The room’s function helps determine the materials, preparation, detailing and installation sequence needed for the job.

5. Surface Preparation Required

Tiles need a suitable surface beneath them. Before pricing the installation, a tiler may need to assess whether the substrate is sound, clean, sufficiently flat and ready for the proposed tile system.

Preparation can include cleaning, patching, grinding, levelling, screeding or addressing unsuitable areas before tiling begins. Cracks, movement, uneven floors, damaged sheeting or adhesive residue can add time and materials. This work may not be visible in the finished room, but it is an important part of doing the job properly.

6. Tile Removal and Disposal

If existing tiles need to come up, the quote may need to include removal, dust control, loading, transport and disposal. The time involved depends on the type of tile, the adhesive, the substrate, the thickness of the existing build-up and how easily the area can be accessed.

Removal can also reveal surface damage or preparation needs that were not visible beforehand. Where old finishes are part of the scope, ask whether a dedicated tile removal service and disposal are included in the quote.

7. Waterproofing Requirements

Wet areas may require waterproofing as part of the project. The size and configuration of the area, the condition of the substrate, junctions, penetrations, wastes and the proposed installation all influence the waterproofing scope.

A quote should make clear whether waterproofing is included, who is responsible for it and what preparation must be completed first. Treating waterproofing as a defined stage of the job helps protect the tiled system and supports a reliable long-term result.

8. Site Access and Working Conditions

Access affects how materials, tools and waste move through the property. Stairs, upper floors, narrow entries, limited parking or long carrying distances can add handling time. Work in an occupied home may also need additional protection, dust management and coordination so the household can continue to use other areas safely.

Clear information about access helps the tiler plan labour, equipment and site protection accurately.

9. Pattern and Layout Complexity

A straight, simple layout is generally different to pricing a herringbone pattern, a feature wall, detailed borders or a layout that must align across several surfaces. More complex patterns can involve additional set-out, cutting, checking and wastage.

The number of corners, niches, columns, floor wastes and penetrations also matters. A professional tiling quote should reflect the proposed layout rather than assuming every square metre takes the same amount of time.

10. Grout, Trims and Finishing Details

The finishing specification can affect both materials and labour. Grout type and colour, joint width, silicone joints, edge trims, mitred edges, movement joints, thresholds and transitions should be considered before work begins.

These details are small compared with the full area, but they influence the final appearance and how neatly the tiled surfaces meet fixtures, walls and adjoining floors. Confirming them early also makes it easier to compare quotes on the same scope.

How Are Professional Tiling Quotes Calculated?

A professional tiling quote is usually built from the complete scope of work. That can include site assessment and set-out, surface preparation, removal, waterproofing where required, installation labour, adhesives and grouts, trims and finishing, site protection, waste handling and other project-specific needs.

Not every quote includes the same items. Before comparing totals, check that each contractor has priced the same surfaces, tiles, preparation and finishes. A lower figure may simply exclude work that another quote has clearly allowed for.

What Information Helps Produce an Accurate Quote?

Providing clear information at the start helps reduce assumptions. Useful details include:

  • the property address and room or area being tiled
  • approximate dimensions, plans or measured wall and floor areas
  • photos of the current surfaces, access points and adjoining finishes
  • the selected tile, including material, dimensions and edge type
  • the preferred pattern, grout colour, trims and other finishing details
  • whether existing tiles or fixtures need to be removed
  • known issues such as cracks, uneven surfaces or previous water damage
  • whether the home will be occupied during the work
  • the expected project timing and any coordination with other trades.

For some projects, photos and plans can support an initial discussion. A site inspection may still be needed to confirm measurements, surface condition, access and preparation before the scope is finalised.

Frequently Asked Questions

How much does tiling cost in Perth?

There is no single reliable rate for every tiling project. Area is one factor, but tile type, preparation, removal, waterproofing, layout, access and finishing details can materially change the scope. The most useful price is one based on the actual project and clear inclusions.

Is a cheaper tile always cheaper to install?

No. The purchase price of the tile and the installation cost are separate. A lower-cost tile may still require complex set-out, additional preparation or time-consuming cuts. Tile size, material, consistency and pattern can all affect installation.

Why do two tiling quotes differ?

The quotes may be based on different inclusions, preparation allowances, materials or assumptions. Compare the scope line by line and ask whether removal, disposal, waterproofing, adhesives, grout, trims, protection and finishing are included.

Can I get a tiling quote from photos?

Photos, dimensions and plans can be useful for an initial review, but they may not show levels, substrate condition, access or concealed issues. Depending on the project, an on-site assessment may be needed before the scope is confirmed.

Do tiling quotes include tiles and materials?

It depends on the quote. Some projects include supply of tiles and installation materials, while others are priced for installation only. Ask for the inclusions to be listed clearly so you know who is supplying the tiles, adhesive, grout, trims and other products.

How can I keep the project cost under control without cutting corners?

Make tile and layout decisions early, choose a pattern that suits the budget, provide accurate information, keep the work area accessible and confirm the full scope before work starts. Simplifying unnecessary layout complexity can reduce labour while still allowing the preparation and installation to be completed properly.

Should I choose my tiles before requesting a quote?

You can begin the conversation before choosing tiles, but the final selection helps produce a more accurate quote. Share the tile material, dimensions, finish and proposed pattern before the scope is confirmed.

A Clear Quote Starts With a Clear Scope

The best way to understand the cost of your tiling project is to look beyond a generic rate and define what the job actually requires. The right tile, sound preparation, suitable materials, careful set-out and clear finishing details all contribute to a result that is completed properly.

Gun Tiling provides professional wall and floor tiling, preparation, tile removal and waterproofing services across Perth. To discuss your project and receive a quote based on the work involved, request a professional tiling quote.