Window Fitting Tips Fitters WON'T Show You! (DIY Friendly)

In this video I replace old, condensated UPVC windows for a customer and show how I remove and refit them without damaging the plaster — even in a spotless house where detail matters. With 20 years experience fitting windows, I talk through the real problems fitters don’t usually show you: Taking windows out cleanly with no damage Dealing with out-of-level window openings Packing frames correctly so they look straight Cutting bay window cills at the correct angles Insulating gaps properly for a neat, long-lasting finish This is a real on-the-tools job, no shortcuts, no rushed fitting — just practical tradesman tips that DIYers and new fitters can learn from. If you’re thinking about replacing your own windows or want to improve your fitting skills, this video will show you what really matters. 👉 Let me know in the comments if this helped, and what window jobs you’d like to see next. #WindowFitting #UPVCWindows #DIYWindows #TradesmanTips #HomeImprovement #RealLifeTradesman All advice shown is based on personal experience. Always follow UK building regulations and safety guidance.