To follow are a few signs that your bathroom countertops are past their prime.

You’ve got surface damage.

Your entire family uses your bathroom countertop at least once per day—most likely even more than that. If your bathroom countertop isn’t made of something durable, or if it’s showing signs of considerable damage, it’s time to replace it and improve its looks and functionality.

You’ve got mold.

Mold is dangerous. It loves dark, damp places, which means that inside the cabinet underneath the bathroom counter is the perfect place for it to grow. This is especially likely if you have plumbing problems or a leaky sink. If you find mold inside your vanity, there’s very little doubt that it has spread inside your countertop—and there’s no getting rid of it once that happens. It’s time for a replacement.

You’re looking to sell.

Buyers care about two rooms: the kitchen and the bathroom. If one (or both) of these rooms are not up to par, they’re not going to give your home a second thought. By upgrading your bathroom countertops, you’ll surely catch buyers’ eyes and ensure that your home sells for as much as it’s worth.

You’re redoing the cabinets.

If you redo one element of your bathroom and neglect to include the countertops in the project, they are going to stick out like a sore thumb. An outdated countertop paired with sleek, shiny, and new cabinets is not the vibe that people are going for. If you’re redoing the cabinets, make sure to include the countertop in on the action.

You’re upgrading the space.

Even if your countertops are still in good shape, there’s a chance that they just don’t fit aesthetically for you anymore—and that’s okay. Trends come and go. But if you’re looking to keep your new bathroom countertop for as long as possible, invest in something that will never go out of style, like quartz.