07/10/2026
🧐 If you’re thinking about uPVC windows, don’t look only at the price — here are 5 potential problems worth knowing about before you decide.
1. Heat loss in winter
Poorly performing frames, seals or installation can allow more heat to escape, meaning more energy is needed to keep your home warm.
2. Condensation, damp and mould
Cold areas around the window can encourage condensation. If moisture keeps returning, it can contribute to damp and mould around the frame and surrounding walls.
3. Movement with temperature changes
uPVC expands as it gets warmer and contracts as it cools. Over time, this movement can affect seals and how tightly the window closes, contributing to draughts and air leakage.
4. Frames can distort
Large or poorly supported uPVC windows can move or distort over time, which may cause problems with opening, closing and maintaining a good seal.
5. Plastic ages
White uPVC can gradually lose its original appearance, while coloured or foiled finishes may fade, discolour or deteriorate after years of exposure to sunlight and weather.
💬 Comment “WINDOWS” if you’re thinking about replacing your windows and want help understanding which option could be right for your home.