One of the big attractions of uPVC is how little looking after it needs. A regular wipe-down is all it takes to keep frames bright, but using the wrong products can cause damage, so it is worth knowing what to use.
What you need
- Warm water and a small amount of washing-up liquid.
- A soft cloth or sponge, and a microfibre cloth for drying.
- A soft brush or old toothbrush for tracks and corners.
- A uPVC-safe cream cleaner for stubborn marks, if needed.
Step by step
- Brush away loose dirt and cobwebs from the frame, sill and tracks.
- Wash the frames with warm soapy water, working from the top down.
- Wipe over the rubber seals and gaskets as well, as dirt builds up there.
- Rinse with clean water and dry with a microfibre cloth to avoid streaks.
- Clean the glass last with a glass cleaner or a little vinegar in water.
Keep the working parts happy
Once or twice a year, clear the small drainage slots on the bottom of frames and sliding tracks, and put a drop of light lubricant on hinges, locks and handles. This keeps everything moving smoothly and helps prevent sticking.
What to avoid
- Abrasive scouring pads and powders, which scratch the surface.
- Bleach, solvents and harsh chemicals, which can discolour or weaken the finish.
- Pressure washers close up, which can force water past the seals.
If the frames have yellowed or stained and a gentle clean does not help, ask us. Some finishes can be restored and others are better replaced.

