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uPVC windows are a popular choice for homes across London and the wider UK – and for good reason. They’re energy-efficient, low-maintenance and built to withstand our ever-changing British weather. But even the best-installed windows don’t last forever. Over time, wear and tear can take their toll, and subtle warning signs may begin to appear. If you’ve noticed something not quite right with your windows, it could be more than just a minor inconvenience. Acting early can save you from costly repairs, draughty rooms and rising energy bills. Here’s how to spot the signs your uPVC windows are failing – and when it’s time to call a professional fitter. 1. Persistent Draughts and Cold Spots One of the first indicators of failing uPVC windows is a persistent draught, even when the windows are firmly shut. What to look out for: Cold air entering around the frame edges Curtains moving despite no windows being open Noticeable temperature differences near windows In many London homes, especially...

Is your home feeling cold, noisy or draughty? If so, replacing tired old windows with modern double-glazed units could be one of the best investments you make this year. Not only does quality double glazing boost energy efficiency and comfort, it also adds value to your property. But before you call anyone, it’s essential to understand what double glazing costs in London in 2026 and what factors influence the prices you’ll see quoted. With higher living costs and labour rates here in the capital, Londoners tend to pay more than the national average — and being prepared helps you budget better. Typical Costs: What You Can Expect 🪟 Price Per Window In 2026, the average cost for a standard double-glazed window in the UK is roughly £450 to £1,200 per window — though this depends heavily on materials and style. uPVC remains the most affordable option, while aluminium and timber frames tend to be pricier. uPVC frames: From around £450–£1,000 per window Aluminium frames: Approximately £...