Seal it before the first year marks it up
The cheapest time to protect a new Prosper home is before anything stains. Fresh grout, new natural stone and unused shower floors take sealer beautifully, and from that point on spills sit on the surface instead of soaking in. Once a stone floor has absorbed cooking oil or a shower has built layered mineral deposits, the work becomes restoration instead of protection, and restoration costs several times what sealing would have.
