How to Easily Clean uPVC Windows & Doors

Want to know how to easily clean your uPVC windows and doors with minimal fuss?
In this guide you’ll find out how with only a cloth and warm soapy water.

Key takeaways
- Always whisk away dirt and debris from your uPVC window and door frames before applying soap and water.
- Wear a face mask when cleaning frames with mould and mildew.
- A sponge and warm, soapy water are usually enough to clean uPVC frames.
- Avoid using strong chemicals as they can discolour or stain uPVC.

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How to Clean the Inside of uPVC Window
| What you will need: | Good to have: |
|---|---|
| Apron Rubber gloves Warm, soapy water Non-abrasive cloth Multi-purpose oil | Vacuum cleaner Paint brush |
Steps:
- Open the window as wide as it will go.
- Remove loose dirt and debris with a cloth or vacuum. If you’re vacuuming, it’s best to use a brush nozzle. Pay extra care to the nooks and crannies close to the hinges the inside of the frames. Optional: You may use a paint brush to get into the tiniest spaces where dirt accumulates.
- Use a soft cloth and warm soapy water to get rid of built up dirt.
- Wipe off excess water with clean, non-abrasive cloth. You may use an old cotton shirt, rag, or tea towel.
- Lubricate the hinges with a small amount of multi-purpose oil.
How to Clean uPVC Window Frames
| What you will need: | Good to have: |
|---|---|
| Apron Rubber gloves Warm, soapy water Non-abrasive cloth | Garden hose Squeegee |
Steps:
- Make sure that the window is thoroughly shut.
- Use a brush or cloth to wipe off loose dirt or dust on the window frames and panes. You may use a hose to rinse off dirt.
- Scrub off dirt with a non-abrasive cloth and warm, soapy water. If you’re using a window cleaning spray, be sure to NOT spray it on the frames.
- Rinse your window with clean water.
- Dry the window glass with a soft cloth or a squeegee. Use a soft cloth to dry off the uPVC frames.
How to Clean uPVC Window Frames that Have Moulds and Mildew
| What you will need: |
|---|
| Apron Rubber gloves Mask Spray bottle and vinegar or uPVC-friendly mould-removing solutions Lukewarm water |
Steps:
- If you are cleaning from inside your house, make sure to allow plenty of air circulation.
- Wear a mask to protect yourself from inhaling moulds and mildew.
- Generously spray the affected area with vinegar. If you’re using a mould-removing solution, be sure to follow the instructions for use.
- Let the vinegar sit for up to an hour to break up the moulds.
- Wipe the moulds off with a soft sponge. Use lukewarm water to rinse off.
How to Clean uPVC Doors
| What you will need: | Good to have: |
|---|---|
| Apron Rubber gloves Warm, soapy water Non-abrasive cloth | Microfibre cloth Non-smear glass cleaner Vacuum cleaner |
Steps:
- Open the door as wide as it will go.
- Use a rag or a vacuum cleaner with a brush nozzle to get rid of dirt and debris.
- Use warm, soapy water to clean both sides of the uPVC door. To clean the glass part of your door, it is best to use microfibre cloth and non-smear glass cleaner.
- Rub in circular motions to avoid streaks.
- Wipe off dirt and soap with a damp cloth.
Can I use stronger cleaning solutions to remove dirt, scruff, or moulds from my window frames?
It’s best to avoid products that contain ammonia, methylated spirits, and bleach. The following products may also discolour or stain uPVC frames: nail varnish remover, cream cleaners sourcing pads, and WD40.
Is it possible to steam clean uPVC frames?
Steam cleaners can effectively clean uPVC frames. Direct steam nozzles are ideal for getting into the gaps in your window frames.
Can I let glass dry in the air?
A soft, clean cloth is best for drying window glass. Streaks and blemish may form if you leave glass to dry in the air.
How often should I clean uPVC windows?
Every two to three months, but it depends largely on where you live in the UK. In some cases, you may only need to clean your uPVC windows twice a year. Regular cleaning can increase the lifespan of uPVC and prevent the buildup of moulds.
Conclusion
Up to 18% of your home’s heat escapes through windows. If you discover, upon cleaning, that your uPVC frames are warped or damaged, it might be time for a replacement. A poorly fitting frame can add to your energy bills.
In the long run, your energy savings will pay off for your initial investment on new uPVC frames. When you’re ready to move to the next step, you may use our free price comparison tool to find out the best prices in your area.
We can also help you find the companies that offer the best value for your money by requesting quotes on your behalf. It’s a free, no obligation service.

