How to Refresh uPVC Window Frames

Are your windows starting to look a little tired? If so, it might be time to replace them. On the other hand, they might just need a little care and attention. The right maintenance can make an old window look as good as new –especially in the case of uPVC windows, which typically have white frames that can be a magnet for grime and dirt.

Let’s take a look at how to clean your windows, and remove stains from white uPVC. When you’re done, they’ll look as good as new.

Cleaning a uPVC window frame

One of the biggest disadvantages of uPVC is that it’s delicate and easily discoloured. Once that white has faded away, it’s often impossible to restore its previous glory.

Cleaning uPVC window sills and frames therefore requires a gentle solution.

  1. Don’t use anything too caustic; opt instead for a combination of one part vinegar and two parts water, administered using a spray bottle.
  2. Cover the plastic in the solution and allow it to break apart the grime.
  3. Rub the surface gently with a soft scrubbing brush.
  4. When you’re done, you can wipe away any lingering dirt before it has a chance to dry again.

In some cases, you’ll find rust stains on your window frames. On uPVC windows these will look like chalky-white patches. To get rid of them, you can use another DIY formula comprising one part detergent and two parts household cleaning powder.

  1. Add just enough water for the powder to dissolve, and a dash of bleach.
  2. Apply using a spray-on bottle as we’ve described above, but be sure to wear rubber gloves, and work in a well-ventilated area. There’s an easy way of ensuring this – leave the window open!

If the glass itself is looking a little dirty, then give it a clean while you’re cleaning the uPVC. We’ve covered the subject in detail in our guide on how to clean windows.

What about painting uPVC windows?

uPVC window frames are not designed to be painted, and doing so may void the manufacturer’s warranty. That said, if it’s a choice between painting and replacing them, applying a lick of paint might be worth a try. Just be sure to select the right type – polyurethane enamel paint that’s rated for vinyl surfaces.

How to paint uPVC window frames

  1. Thoroughly clean the frame.
  2. Cover the glass with masking tape.
  3. Apply a coat of primer, and wait at least 6 hours for it to dry fully.
  4. Apply two coats of paint, allowing each to dry completely, and scour off any that might have found its way onto the glass using a razor blade.

If you’ve done everything right, you’ll have extended the lifespan of your window a little. That said, if your windows are in dire need of a refresh, it might be time to start thinking about fitting new windows.

← Previous post

Next post →

2 Comments

  1. Is there anything you would suggest to bring back the colour, on older upvc double glazed casement windows?

    They have sort of faded and turned a yellow/off white colour..

    Thanks
    John

    • Windows and More

      Windows and More

      Hi John,

      There are products on the market that you can use to brighten up the uPVC windows however i would advise you contact the window manufacturer 1st.

      Kind regards

      Alan

Leave a Reply