Yes, you need it, except when you happen to be using epoxy-based grout. Grout sealer is essential for tile work. Grout is a porous substance. So, once grout has been applied and dried, it is ready to absorb any liquid that comes its way. So, you need to get one step ahead of the moisture, and penetrate the grout with sealer. Grout sealers are not fun to apply, the task involved is laborious, and the immediate results are not visible, never my idea of a great home remodeling task, and the smaller the tile size, the more grout you will have. That is why our trained and experienced operatives will come and apply the grout sealers for you.
Our grout sealing specialists will use a no-sheen, natural look, water-based, impregnating, non-flammable sealer specially formulated for your grout.