Grout gets far less attention than tiles, but it's often the first thing to fail. The two main types are cementitious grout and epoxy grout.
Cementitious grout
Cement-based grout is the standard choice for most tiling. It's easy to work with, cheaper, and fine for dry and occasionally wet areas. It is porous, so it can absorb dirt and stain over time, and in wet areas it needs looking after.
Epoxy grout
Epoxy grout is resin-based. It doesn't absorb liquids, so it resists staining, bacteria and chemicals far better. That makes it the usual choice for commercial kitchens, food areas, changing rooms and busy pools.
The trade-offs
- Epoxy costs more and takes longer to install
- Epoxy needs time to cure before heavy use or water (we allow 7 days before refilling a pool)
- Cement grout is cheaper and quicker but may need regrouting sooner in demanding areas
Our advice
Use epoxy where the conditions demand it: kitchens, wet areas, food production and leisure pools, where closing for repairs is costly. For dry corridors, offices and receptions, a good cementitious grout is usually the sensible choice.
This guide is general information. Always follow the tile, adhesive and product manufacturers' instructions for your specific project.