For black silicone around a shower base or grout falling out between tiles, mention previous repairs and water appearing outside the shower. A recurring leak should be described as a leak, not only as a request for new silicone.
Different joint materials
Grout fills the joints between tiles; silicone provides a flexible seal at suitable junctions or movement joints. The materials have different roles and are not interchangeable in every location. We check the joint and cause of deterioration before specifying replacement.
Surface resealing and membrane work
Resealing renews visible flexible joints. Waterproofing repair addresses the membrane and junctions beneath or behind finishes and can require tile removal and substrate repair. Renewing surface silicone does not establish that the underlying waterproofing is sound.
