Regrouting, resealing, and finding out why it failed.
Quick answer: Grout Repair and Regrouting. Southeastern Renovation is a licensed South Carolina general contractor (CLG.127339) serving the Charleston Lowcountry and York County, SC. Work is coordinated by Southeastern Renovation as the general contractor. Licensed trade subcontractors handle work requiring their trade credentials; permit responsibilities depend on the project scope and jurisdiction. Call (843) 718-8177 for an estimate.
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 discoloured with age and nothing is moving, regrouting and sealing is a genuinely good-value job and makes an old bathroom look considerably younger.
Serving Charleston, Mount Pleasant, North Charleston, Summerville, Goose Creek, James Island, West Ashley, Isle of Palms, Moncks Corner, Hanahan, Ladson, Daniel Island, Johns Island, Park West, Seabrook Island, Kiawah Island, Edisto Island, Folly Beach, Ravenel, Rock Hill, Fort Mill, Tega Cay, Lake Wylie, Clover, York, Indian Land across the Charleston Lowcountry. Part of Southeastern Renovation.
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 colour sealing, and it changes how a bathroom reads more than people expect.
It is also the moment to choose a colour that will not show every mark.