How to Tell If Your Sealant Needs Professional Replacement
Quick answer: Your sealant needs professional replacement if it’s cracking, crumbling, discoloured with mould, lifting away from the surface, feels hard and brittle, or is more than 5–10 years old. These signs mean water is likely getting behind the seal, and a DIY top-up won’t fix it — the old sealant needs to be fully…
