Renton / Shower remodel
Renton shower remodel: rebuilding after cracked tile and poor bonding
When shower tile is cracking, new grout may not solve the problem. This Renton shower remodel shows what we found behind the old tile and how the shower changed from demolition to the finished glass enclosure.
- Location
- Renton, Washington
- Scope
- Second bathroom shower rebuild
- Original problems
- Cracking, poor bonding and uneven cuts
- Finished details
- Rectangular tile, mosaics and sliding glass
They called us back for their second bathroom
These Renton homeowners first hired us to remodel their primary bathroom after a leaking shower pan. About three years later, they called us back for a second bathroom. You can see the earlier work in our Renton primary bathroom renovation.
This shower had a different set of problems. The cuts around the edges were uneven, some grout joints were more than ¼ inch wide, and tile was cracking. Once the tile came off, we could see that some pieces had not bonded properly to the thinset underneath.
The photographs below follow the work from the original shower through demolition, pan construction and the finished tile. They also explain a decision homeowners often face: when is a shower worth repairing, and when does it make more sense to rebuild?
Uneven cuts were visible. The bonding problem was underneath.
At the ceiling and wall corner, the original tile ended in irregular cuts with wide grout joints between the edges. Those boundaries draw the eye because they frame the whole shower. Even when the main wall tile looks fairly straight, an uneven finish around the perimeter can make the installation feel unfinished.
A joint wider than ¼ inch is not automatically a defect. Some tile and grout combinations are designed for wider joints. The issue here was the uneven cutting and inconsistent gaps. A planned joint belongs to the layout; an oversized gap used to make up for a poor cut does not improve the fit of the tile.
The cracking mattered more than the appearance. A cosmetic repair would not address tile that lacked a proper bond underneath. Before choosing new grout or sealant, we needed to address the installation behind the surface.
Removing the tile showed why a surface repair was not enough
During removal, some tiles separated from thinset that had dried without adhering properly. The ridges left on the wall made those areas easier to see. Poor bonding contributed to the cracks and was one of the reasons this shower was rebuilt.
Thinset is the mortar that bonds tile to its backing. It has to make contact with the tile while it is still workable. If the spread mortar dries or skins over before a tile is placed, it may remain on the wall without forming a reliable bond to that piece.
This is why working time and checking mortar transfer matter during installation. CUSTOM Building Products explains that mortar which has become too dry should be removed and replaced with fresh material. Its thinset installation instructions describe that check; the selected mortar’s own directions should always guide the work.
For a homeowner, the practical question is simple: what is the proposed repair actually fixing? Replacing grout between loose tiles leaves the loose tiles in place. When several areas have bonding problems, removing the affected work gives the contractor a chance to examine the backing and decide on a suitable rebuild.
The rebuild started below the finished tile
The construction photographs show the shower opened up around the original base and window, followed by the new pan liner. These stages are easy to overlook in a finished-room photograph, but they are part of planning a tiled shower. The base, drain, wall assembly and their connections need to be considered together.
When comparing shower-remodel proposals, ask what is included beneath the tile. A quote should make clear whether it covers removal, preparation of the backing, the shower base, waterproofing connections and the finished surfaces. Two proposals can use similar-looking tile while describing very different amounts of work.
The edges deserve attention too. Corners and other changes of plane need a detail that accommodates movement. LATICRETE’s grout troubleshooting guidance calls for suitable flexible sealant at those locations. This is a separate issue from choosing the grout used between tiles on the flat wall.
The finished Renton shower remodel
The rebuilt shower uses warm neutral rectangular wall tile, a vertical hexagonal accent and a mosaic shower floor. The window stays central to the back wall, bringing daylight into the shower. The tiled curb and surrounding floor connect the shower to the rest of the small room.
The photograph taken before the glass went in gives the clearest view of the layout. You can follow the wall joints, see the cuts around the window and look at the transition between the walls, shower floor and curb.
Sliding glass doors complete the shower enclosure beside the toilet. Comparing this finished view with the earlier photographs shows more than a change in color. It shows how the edges, floor and enclosure come together after the underlying work has been rebuilt.
Should you repair your shower or replace it?
Start with the cause of the problem rather than the finish you want to buy. A small damaged grout joint in otherwise sound tile may call for a limited repair. Repeated cracks, movement or poorly bonded tile deserve a closer assessment before you spend money on another cosmetic fix.
- Ask what is causing the damage. A useful proposal explains the likely cause and how the scope addresses it.
- Separate appearance from performance. Uneven cuts are visible, but a neat grout line does not tell you whether the tile is well bonded.
- Discuss adjoining details. The window, curb, drain, corners and glass all affect the scope of a shower rebuild.
- Ask to see progress photographs. Before-and-after images show the result; construction photographs help explain the work between them.
In this Renton bathroom, rebuilding addressed the poor bonding and gave the shower a more consistent finish. If you are weighing a similar project, browse our Washington bathroom remodeling projects to compare different layouts and completed rooms.
Questions homeowners ask about cracked shower tile
Can regrouting fix cracked shower tile?
Regrouting can address worn or damaged grout when the tile and backing remain sound. It cannot restore the bond beneath loose tile. If cracking keeps returning, the tile moves or several areas are affected, have the assembly assessed before paying for another surface repair. In this Renton shower, poor bonding was one of the reasons for rebuilding.
Are grout joints wider than ¼ inch always wrong?
No. Suitable joint width depends on the tile, its size variation and the grout being used. Here, the problem was uneven cuts and oversized gaps at the boundaries of the shower, along with separate bonding problems beneath some tiles. A deliberate, consistent wide joint is different from grout being used to fill an irregular cut.
Why can shower tile fail to stick to thinset?
One possible cause is mortar drying or forming a skin before the tile is set. Other causes can include unsuitable materials, a poorly prepared surface or inadequate contact. The mortar must be suitable for the tile and backing, used within its working time and checked for transfer while installation is underway.
Should shower corners be filled with grout?
Changes of plane need movement accommodation. A suitable flexible sealant is commonly used where tiled walls meet and at other restraining surfaces, following the installation system instructions. Adding more rigid grout to a corner that repeatedly cracks may leave the underlying movement problem unresolved.
Does a shower rebuild have to mean changing the whole room?
The scope depends on what is failing and which adjoining surfaces must be opened. In this project, the finished shower occupies the same corner beside the window and toilet. Discuss the shower base, walls, waterproofing connections, fixtures and glass as one scope before deciding what can remain.
Planning a shower remodel in Renton?
Tell us what is happening in your shower and what you would like to change. We can discuss the condition, layout and scope before you choose the finishes.
Renton shower photographs
