When it comes to home maintenance, cleaning your uPVC windows and doors might not top your to-do list, but it should. Not only do clean windows and doors make your home look brighter and more appealing, but regular cleaning also prolongs their lifespan, preserves the quality of the materials, and ensures smooth operation year-round.
In this guide from GL Glazing & Window Services, we’ll share expert, step-by-step tips on how to clean uPVC windows and doors properly including the frames, seals, and glass. Whether you’re in the middle of spring cleaning or just want to keep your home looking its best, this comprehensive blog will help you get streak-free, spotless results every time.
Why Cleaning uPVC Windows and Doors Matters
Before diving into the how-to, let’s talk about the why. uPVC (unplasticised polyvinyl chloride) is a durable, low-maintenance material widely used in windows and doors across the UK. While uPVC is resistant to rot, rust, and fading, it still needs regular cleaning to:
- Prevent dirt and grime buildup
- Maintain bright white or coloured finishes
- Protect seals and hardware from long-term damage
- Keep windows and doors operating smoothly
Routine maintenance can also help identify early signs of wear or damage, saving you money in the long run.
How Often Should You Clean uPVC Windows and Doors?
For most homes, cleaning your uPVC windows and doors every 2-3 months is ideal. If you live near a busy road, coastal area, or industrial site, more frequent cleaning may be necessary due to increased exposure to pollutants and salt.
Step-by-Step Guide: How to Clean uPVC Window and Door Frames
Step 1: Remove Surface Dust and Debris
Start by opening your windows and doors. Use a soft brush, vacuum cleaner with a brush attachment, or dry microfibre cloth to remove loose dust, cobwebs, and debris from the frames, hinges, and crevices.
Step 2: Wash the Frames
Mix a bucket of warm water with a few drops of mild washing-up liquid. Avoid harsh chemical cleaners, bleach, or abrasive scrubbing pads they can scratch or discolour your uPVC.
Use a soft sponge or cloth to gently wash down the frames, working from top to bottom. For tougher marks or stains, you can use a specialised uPVC cleaner or a paste made from baking soda and water.
Step 3: Clean the Seals and Gaskets
The rubber seals (also called gaskets) around your uPVC windows and doors are crucial for weatherproofing. Gently wipe them with a damp cloth and inspect for any signs of wear, cracking, or detachment.
To prolong their life, you can apply a silicone-based lubricant every 6-12 months.
Step 4: Dry Thoroughly
Use a clean, dry microfibre cloth to remove any remaining moisture. This helps prevent water spots and ensures a streak-free finish.
How to Clean uPVC Window and Door Glass
Achieving that sparkling, streak-free glass finish is easier than you think.
Step 1: Choose the Right Glass Cleaner
While commercial glass cleaners work well, a homemade solution of 1 part distilled vinegar to 4 parts warm water is just as effective and eco-friendly.
Avoid ammonia-based products, they can damage the uPVC and affect the rubber seals over time.
Step 2: Use the Two-Stage Cleaning Method
- Initial Wipe: Use a damp cloth to remove dirt and smudges.
- Glass Cleaning: Spray your glass cleaner directly onto the windowpane, then wipe using a lint-free cloth, squeegee, or newspaper.
Tip: Clean on a cloudy day to avoid streaks caused by rapid drying in direct sunlight.
Step 3: Don’t Forget the Inside
Many homeowners forget to clean the inside glass, but fingerprints, dust, and condensation marks are common. Repeat the same cleaning method on interior panes.
Tips for Cleaning uPVC Door Panels and Thresholds
uPVC front doors, back doors, and patio doors often gather grime in the lower areas. Here’s how to keep them looking like new:
- Use a toothbrush or small detailing brush to clean around the hinges and locking mechanism
- Pay attention to the door threshold and bottom seals, as these trap a lot of dirt
- For coloured uPVC doors, use a colour-safe cleaner to avoid fading
What Not to Use When Cleaning uPVC
To avoid damage, never use the following on your uPVC windows and doors:
- Scouring pads or wire brushes
- Solvent-based cleaners (e.g., nail polish remover)
- Cream cleaners with abrasive particles
- High-pressure washers (can damage seals and frames)
Long-Term Maintenance Tips for uPVC Windows and Doors
Besides cleaning, a few simple checks and maintenance steps can keep your windows and doors functioning perfectly for years:
- Lubricate moving parts like hinges and locks with light machine oil every 6 months
- Check drainage holes at the bottom of frames and clear any blockages
- Inspect the glazing seals for gaps or cracks
- Touch up silicone seals if they appear worn or peeling
Eco-Friendly and Cost-Effective Cleaning Solutions
Want to save money and the planet? Here are some green alternatives:
- Vinegar and water – perfect for glass
- Baking soda paste – great for stains
- Microfibre cloths – reusable and effective
These options are safe for children, pets, and allergy-prone individuals.
Frequently Asked Questions
Q: Can I pressure wash my uPVC windows and doors?
A: No. High-pressure washers can damage seals, dislodge silicone, and scratch the surface. Stick to low-pressure hand washing.
Q: How do I get rid of yellowing on uPVC?
A: Yellowing can be caused by UV exposure or smoking. Try a dedicated uPVC restorer or consult a window specialist if the discolouration is severe.
Q: Is it safe to use bleach on uPVC frames?
A: Bleach can be too harsh and may cause permanent discolouration or damage to the material.
Keeping your uPVC windows and doors clean isn’t just about aesthetics, it’s essential for protecting your investment and maintaining energy efficiency. With just a few easy steps, the right tools, and a bit of regular attention, you can ensure your windows and doors stay gleaming, functional, and looking like new for years.
If you’re unsure about any aspect of uPVC window or door maintenance, or if you’re in the West Midlands and need expert help, GL Glazing & Window Services is just a call away. We offer professional window and door installation, repairs, and cleaning advice tailored to your property.
