Whether you’re improving your home’s energy efficiency or replacing old, misted units, investing in double-glazed windows is a smart move. But if you want to keep your windows performing at their best and get the most from your money, regular window maintenance is non-negotiable.
In this guide, we’ll share our top tips for maintaining double-glazed windows, from cleaning your glass and frames to protecting your seals and fittings.
Cleaning double-glazed windows: Essential tips
Nobody wants dirty windows, which is why it’s important to clean them. But keeping up appearances isn’t the only reason to give your double-glazed windows a wash. Cleaning your windows can also help you spot issues before they become serious.
Here’s our advice for when and how to clean your windows:
1. Use gentle, homemade cleaners
Stay clear of harsh chemical cleaners, as they can damage your windows and frames over time. Instead:
- Combine one part white vinegar with four parts water.
- Apply the solution with a soft microfibre cloth using circular motions.
- For tight corners or hard-to-reach areas, use cotton buds or a soft toothbrush.
Of course, shop-bought cleaners are also fine, but choose eco-friendly products to protect your windows from any damage.
2. Choose the right day to clean
Cleaning your windows on a bright sunny day may seem like the ideal scenario. However, the sun causes cleaners to dry too quickly, which leaves you with those dreaded window streaks. Instead, clean your windows on a cloudy day for streak-free results.
3. Buff your windows with newspaper
Here’s an old trick that never gets old: Use scrunched-up newspaper to buff your windows and achieve a lovely streak-free finish. This tip gets bonus points because it’s both budget-friendly and environmentally friendly.
4. Don’t use abrasive materials
Using abrasive materials such as rough sponges or brushes on your windows is a big no no, as these can scratch your window glass and frames.
5. Be gentle with debris removal
Before cleaning, gently remove abrasive debris like sand, stones, or bird droppings with water to prevent scratching the glass surface.
6. Be wary of pressure washers
Pressure washers can damage window seals and frames. If you need to rinse your windows, use a garden hose instead and set it to low pressure.
Top Tip: Not sure how to avoid harsh chemicals? Make your windows sparkle using these household items:
- Baking soda: Ideal for removing stubborn marks without scratching the glass.
- Lemon juice: A natural degreaser perfect for tackling greasy fingerprints and grime.
- Dishwasher soap: Mix a few drops of mild dishwasher soap with warm water for an easy, streak-free clean.
- Cornstarch: Combine a teaspoon of cornstarch with vinegar and water to create a solution that breaks down water bonds for spotless, streak-free windows.
Caring for UPVC frames and rubber seals
It’s not just window glass that needs your attention. Proper care of UPVC frames and rubber seals is just as important for extending the lifespan and efficiency of your windows.
Inspect and maintain window seals
Rubber seals help keep moisture out and warmth in. Here’s how to care for them:
- Regular inspection: Check seals regularly for gaps, lumps, or damage. Gently push minor issues back into place.
- Gentle cleaning: Use warm, soapy water and a soft brush (like an old toothbrush) to remove dirt or mould without damaging the rubber.
If you’re experiencing reoccurring issues with your window seals, they may need expert repair.
Keeping UPVC frames clean
Regularly cleaning UPVC frames prevents discoloration and maintains their appearance. For a step-by-step guide, see our complete guide to cleaning UPVC window frames.
Prevent mould and condensation
Condensation buildup on double glazing can lead to mould growth and potential health concerns if left untreated.
Follow these tips to manage and prevent condensation:
- Regularly wipe any moisture away with a sponge or squeegee.
- Position furniture so it’s spaced away from walls to improve airflow.
- Open windows or use extractor fans when you’re cooking, showering, or drying clothes.
- Review your home’s insulation and consider using a dehumidifier if necessary.
For more detailed tips, check out our guide to reducing condensation in double-glazed windows.
Maintain window locks, hinges and handles
Your window hardware is vital for both security and effective insulation. Regular checks and simple maintenance will keep them functioning smoothly.
Regularly clean and lubricate locks hinges and handles
- Wipe locks, hinges, and handles regularly with a soft, damp cloth.
- Apply silicone-based lubricant or a small amount of light machine oil (such as WD-40) every six months to stop stiffness and corrosion.
Signs your hardware needs attention:
- You find it difficult to open or close your windows
- Your locks and handles are stiff or stick
- Your window hinges are looser than they should be and cause draughts
Routine maintenance will help to keep your windows going for longer, but be mindful that some issues will need professional intervention. If you’re experiencing persistent condensation between panes, damaged seals, or problems with locks and handles, our team is ready to help.
Book a free, no-obligation assessment today and discover how we can restore your double glazing.
