Tile
Grout Repair and Regrouting in Charleston, SC
Regrouting, resealing, and finding out why it failed.
Regrouting, resealing, and finding out why it failed.
Quick answer: Grout that keeps cracking in the same place is a sign of movement (a flexing floor, an unsupported shower pan, a missing expansion joint), and new grout cracks again unless that is fixed. Grout is not waterproof; constantly wet grout can mean the waterproofing behind the tile has failed. Where it is just worn, regrouting and sealing is good value: a national example puts an 80 sq ft shower at $560–$880 (Fixr, 2025; cost guide; not our quote). Call (843) 718-8177.
Movement is the common cause. A floor that flexes, a shower pan that was not properly supported, or a change of material without an expansion joint will all crack grout in the same places repeatedly, and new grout in a moving joint cracks again.
Water is the other. Grout is not waterproof — the waterproofing in a shower is behind the tile, not in the joints — so grout that is constantly wet and staining can be a sign the layer behind it is not doing its job.
Where the grout has simply worn or discolored with age and nothing is moving, regrouting and sealing is a genuinely good-value job and makes an old bathroom look considerably younger.
We take this work across greater Charleston, from Summerville and Goose Creek to Mount Pleasant, West Ashley and the sea islands, and on the York County side around Rock Hill, Fort Mill, Tega Cay and Lake Wylie. More on our tile services.
Because something there is moving. A flexing floor, an unsupported shower pan, or a junction between two materials with no expansion joint will crack new grout as reliably as it cracked the old.
The movement is the repair; the grout is the symptom.
No, and this is worth knowing. In a properly built shower the waterproofing is behind the tile.
Grout that is permanently wet, staining or soft can be telling you that layer has failed, which is a bigger job than regrouting.
Yes, either by regrouting or by color sealing, and it changes how a bathroom reads more than people expect.
It is also the moment to choose a color that will not show every mark.