Short answer: Yes, absolutely.
Resealing UPVC windows is not only possible, but it is also a recommended maintenance task that can save you hundreds of pounds on heating bills and prevent serious structural damage to your home. can you reseal upvc windows
Over time, the sealant (usually silicone or butyl rubber) around your window frames degrades due to UV exposure, rain, wind, and temperature changes. When this happens, you will notice drafts, water leaks, or condensation between the glass panes. Short answer: Yes, absolutely
If the window frame itself is warped, or if the wall around the window has crumbling bricks, you need a builder or window fitter, not just a tube of silicone. Short answer: Yes