For brown uPVC window frames:

  • Use a soft cloth and a gentle uPVC cleaner.
  • Apply in a circular motion, then wipe off with a damp cloth.
  • Avoid using harsh chemicals which can discolour the frames.

For brown uPVC window frames:

  • Use a soft cloth and a gentle uPVC cleaner.
  • Apply in a circular motion, then wipe off with a damp cloth.
  • Avoid using harsh chemicals which can discolour the frames.