If your shower is leaking but the rest of the bathroom looks fine, you’re probably wondering if you really need to rip out the whole thing. The short answer is: not always.
In many cases, the leak can be stopped properly by retiling just the shower floor and the first row of wall tiles. It’s called a floor-first-row retile, and it’s one of the smartest ways to repair a leaking shower without doing a full renovation.
At Allspex Tiling, we specialise in these kinds of repairs. We’ve fixed hundreds of showers where people were told they needed a full rebuild, when the issue was actually at the base of the shower. Here’s what this method involves and when it’s the right option.
What a Floor-First-Row Retile Actually Means
A floor-first-row retile means we remove all the tiles on the shower floor plus the bottom row of wall tiles. We do this so we can access the waterproofing layer and re-seal the most common leak points properly.
Waterproofing always needs to go up the wall slightly to create a watertight junction between the floor and wall. If you only remove the floor tiles, you can’t make that overlap, which means the new waterproofing wouldn’t hold. That’s why the first row of wall tiles comes off too — it’s not for looks, it’s for function.
Once the old tiles and bedding are out, we rebuild the base correctly with new screed and waterproofing before retile and sealing.
Why Only the Floor and First Row?
Most shower leaks start at the junctions — around the drain or along the corners where the floor meets the wall.
Even if the rest of the shower looks perfect, water often finds its way under the floor tiles through cracked grout, movement in the hob, or failed silicone around the edges.
By repairing from the floor up to the first row, we can replace the full waterproofing system where it matters most. The rest of the wall tiles can stay if they’re in good shape and the leak hasn’t spread higher.
As Marco always says, “Water doesn’t just come through the middle of a wall. It starts at the floor junction or a small breach and then spreads. If you fix it from the bottom up, you stop it at the source.”
When A Partial Shower Repair Method Works Well
A floor-first-row retile can be ideal if:
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You’ve got a leaking shower showing water damage in the ceiling below or adjacent wall.
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The floor tiles are cracked or sound hollow when tapped.
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The shower is older, with outdated waterproofing.
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The wall tiles are still in good condition and worth keeping.
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You want a durable, mid-range option between a quick seal and a full renovation.
It’s also a popular choice for landlords or property managers who want to stop a leak fast but don’t want to commit to a complete bathroom rip-out.
When a Base Only Repair is Not Suitable
There are times when a floor-first-row repair isn’t enough. For example:
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If water has spread higher up the wall or into other rooms.
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If tiles are loose or drummy past the first row.
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If the plumbing behind the wall is leaking.
In these cases, you’ll need a more extensive repair to avoid further damage
Damaged Timber Subfloor
The shower subfloor had completely rotted from years of hidden moisture, making it unsafe to stand on. The damaged timber was removed before rebuilding the shower base properly.
New Timber Subfloor
We replaced the damaged timber with a strong, treated base before rebuilding the shower. Allspex handles the full repair process, so homeowners don’t need to organise other trades.
Waterproofing Application
The waterproofing membrane is applied in double coats across the shower base and up to the first row of wall tiles, creating a continuous barrier where the wall junction meets the floor.
Completed Floor First Row
After repair – the shower was fully rebuilt with new floor and first-row tiles. While the new tiles differ slightly in colour, it’s a clean, long-lasting, and economical solution to stop the leak without a full renovation.
The Process
Here’s how we handle a floor-first-row shower repair from start to finish:
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Remove the shower screen (it must come off to seal and tile correctly).
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Remove the floor tiles and first row of wall tiles carefully to protect the rest of the wall.
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Inspect the substrate for moisture or rot.
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Re-screed the base using our HydroLock ProBlend™ additive — this makes the screed itself waterproof, adding another layer of protection most tilers don’t offer.
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Apply full waterproofing with Bostik Dampfix Platinum, overlapping the wall junctions.
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Tile using C2S2-grade adhesive for superior bond strength.
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Seal with FlexiShield™ epoxy, our premium resin-based grout that locks out water and resists mould.
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Refit or replace the shower screen once everything has cured.
The whole process usually takes around five visits – some days are longer than others as we need time for things to dry and cure.
Why Tile Removal is Necessary – Despite what the internet says!
Many people first try sealing or regrouting when their shower leaks. It might look better for a few months, but once the seal fails and the shower leaks through the waterproofing,, a retile is the only long-term fix. Once water has already got under the tiles, no surface seal can push it back out.
Likewise if you’ve got water pooling and not travelling to the drain, the slope has not been set right and the water will eventually seep through the grout and cause you the same dramas under the tiles. No amount of sealing is going to fix your flat shower – retiling is the only option.
A floor-first-row retile goes deeper, fixing the waterproofing system itself. You’re left with a shower that drains properly, stays dry underneath, and comes with a proper warranty.
How Long It Lasts and What It Costs
Every job is different, but most floor-first-row retiles come with a 10-year workmanship warranty.
It’s less expensive than a complete renovation because we’re only working in the lower section, but it still includes all the correct materials, waterproofing, and testing that make it a proper long-term repair.
The main benefit is value — you’re fixing the problem properly without tearing out tiles that don’t need replacing.
Final Advice from Marco
If your shower floor is cracked, leaking, or showing signs of water damage, don’t rush to reseal it or tile over the top. The right approach depends on where the leak is coming from and how far it’s travelled.
A floor-first-row retile is a smart middle-ground solution — it’s invasive enough to do the job properly, but not so extreme that you’re rebuilding a perfectly good shower.
If you’re unsure what kind of shower repair you need, get in touch and we’ll take a look. We’ll give you straight advice on whether a floor-first-row retile, a full retiling, or a seal is the right move.
