Cracked grout, recessed joints, and loose tiles are some of the telltale signs of a leak, but when grout joints darken as a result of mould, and the tiles sink to the touch, it’s about time to act.

There’s nothing worse than time-worn caulk—the distasteful brown and brittle bead, cracking around the edges. Once the sealant starts cracking, you're at risk of dealing with water ingress, which could potentially lead to mould growth.

Without a doubt, one of the main elements to look for when buying a home is the envelope's energy efficiency. Besides ensuring optimal indoor temperatures, it minimizes heating and cooling needs, making the home impervious to drafts and water leaks.