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Helping diagnose common problems with existing window installations

How to clean uPVC windows

uPVC cream casement window in the kitchen

uPVC is very easy to clean; it is a low maintenance product that can handle all types of weather, be it high winds on a coastline or the smog of the city, but as with all things, they will eventually build up dust and dirt overtime.

Cleaning inside and out:

  • Open the window and vacuum in all of the vents, nooks and crannies to remove any dirt or grime. If your hoover has a brush nozzle, use this to try and prevent scratching the uPVC. This window cleanliness aids with the drainage of any fluid that may build up in the frame.
  • Using a bucket of warm soapy water (washing up liquid does the trick) and a sponge wipe down the dirty window. Avoid scouring pads, they can scratch the uPVC, especially if you have a decorative finish.
  • You can dry with a tea towel, kitchen roll or an old rag, as long as it is clean and non-abrasive.
  • For crystal clear windows you can try using newspaper to remove smears from the glass.

Things to avoid:

  • Bleach
  • White Spirits
  • Methylated spirits
  • Nail varnish remover
  • WD40
  • Applying too much pressure to the uPVC when cleaning
  • Scouring pads

All of the above can have a damaging effect on your uPVC windows. The liquids above can discolour, erode or remove the finishes, so be extra careful if you are using these near your windows.