Worn-out weatherstripping on your sliding doors can let in drafts, water, and even pests, but how do you know when it’s time for a swap? In this straight-up guide, we’re sharing the telltale signs that your weatherstripping’s on its last legs.

Look out for cracks, gaps, or seals that feel brittle—our team’s seen it all and knows what spells trouble. We’ll walk you through simple checks, like feeling for air leaks or spotting water stains, and explain why acting fast prevents bigger headaches, like higher bills or door damage. Plus, we’ll share quick tips on what to replace it with.

Don’t let bad weatherstripping mess with your comfort—let’s dive in and catch those warning signs early!