Regrouting of shower tiles

We need the floor tiles in our shower regrouted and sealed as I believe there is water coming through them. The main goal is waterproofing here. Work required: * Inspect the shower floor and assess potential water ingress. * Remove old grout and regrout the floor using high-quality, water-resistant grout (ideally epoxy). * Remove and replace silicone seals along the shower edges and around the drain where appropriate.