uPVC (unplasticized polyvinyl chloride) doors and windows are widely celebrated for their durability, energy efficiency, and low maintenance requirements. However, like all home installations, they require a structured maintenance schedule to ensure optimal performance and longevity. Below, we provide a comprehensive, season-by-season guide on how to maintain your uPVC doors and windows year-round.
Spring: Refresh and Inspect After Winter
Spring Maintenance Checklist for uPVC Windows and Doors
After enduring the harshness of winter, spring is the ideal time to thoroughly inspect and refresh your uPVC units.
1. Clean Frames with Non-Abrasive Products
Use a soft cloth or sponge with warm soapy water (mild detergent) to clean dirt, salt deposits, and grime that may have accumulated. Avoid scouring pads or harsh chemicals like bleach or acetone which can damage the uPVC surface.
2. Check for Mold and Mildew
Winter dampness can sometimes lead to mold forming around window frames. Use a vinegar solution or a dedicated anti-fungal spray to safely eliminate any signs of mold.
3. Examine Seals and Gaskets
Inspect rubber seals around the windows and doors. Check for signs of brittleness, peeling, or gaps. Damaged gaskets can compromise insulation and should be replaced promptly.
4. Lubricate Hinges and Locks
Apply light machine oil or silicone spray to moving parts such as hinges, handles, and locking mechanisms to ensure smooth operation and to prevent rust.
Summer: Prevent Warping and Maximize Ventilation
Summer Maintenance Tips for uPVC Fittings
Warmer temperatures mean more exposure to UV rays and increased usage of windows and doors for ventilation.
1. Inspect for UV Damage
uPVC is UV-resistant, but prolonged exposure can still cause slight discoloration. Wipe down with uPVC-specific cleaner to maintain that factory-fresh white appearance.
2. Clear Drainage Channels
Locate and clean the drainage holes at the bottom of the window frames. These prevent water from collecting and leaking indoors. Use a small brush or pipe cleaner to remove blockages.
3. Adjust for Expansion
uPVC can slightly expand in heat. If windows or doors are harder to open or close during the summer, adjust the hinges or locking points rather than forcing them. Many modern uPVC systems allow for such adjustments with an Allen key.
4. Maintain Ventilation Features
If your windows have trickle vents, clean them using compressed air or a soft brush to remove dust and pollen build-up.
Autumn: Prepare for the Cold Months
Autumn Preparation Steps for uPVC Doors and Windows
Getting your uPVC systems winter-ready ensures you retain heat and avoid unexpected repairs during colder months.
1. Test Weather Seals
Before temperatures drop, do a quick check by closing the window or door on a sheet of paper. If you can pull the paper out easily, it might be time to replace the seal.
2. Apply Silicone Lubricant to Seals
This keeps rubber seals supple and prevents them from cracking or freezing during the winter.
3. Inspect Glass for Condensation
Check for condensation between panes in double-glazed units. This is a sign of a failed seal, which requires professional replacement to maintain insulation effectiveness.
4. Tighten Loose Screws and Handles
Temperature shifts can loosen hardware. Use a screwdriver to ensure all handles, hinges, and locks are securely fastened.
Winter: Defend Against Moisture and Drafts
Winter Maintenance for Energy Efficiency and Comfort
Cold weather can stress uPVC systems. It’s vital to protect them against moisture ingress and thermal inefficiency.
1. Seal Drafts Immediately
Use draught-proofing strips or foam sealants for temporary solutions if you feel cold air coming through gaps. However, follow up with permanent repairs as soon as possible.
2. Monitor Condensation Levels
Internal condensation on the window pane should be wiped regularly. Consider using a dehumidifier or improving ventilation to reduce excess moisture indoors.
3. Check Locks and Security
Cold metal can contract slightly, affecting alignment. Make sure that your doors and windows lock smoothly and securely. If not, minor hinge or striker plate adjustments may be required.
4. Avoid Using Force
If your window or door is stuck due to frost, never force it open. Apply gentle heat using a hairdryer around the frame to release frozen components.
Routine Care Tips to Follow All Year Round
Essential Ongoing Maintenance Practices
Keeping up with small, regular tasks can extend the life of your uPVC fixtures by years.
1. Regular Cleaning Routine
Clean your uPVC surfaces once every 2-3 months using a microfibre cloth and warm soapy water. For stubborn marks, use a uPVC-specific cleaner.
2. Polish for Shine and Protection
Twice a year, consider applying a uPVC restorer or polish to keep surfaces gleaming and protected against the elements.
3. Inspect Hardware Functionality
Monthly, check that handles, locks, stays, and restrictors are operating as intended. Don’t wait until something breaks—preventive maintenance saves money.
4. Professional Maintenance
Every couple of years, hiring a qualified window technician to perform a full inspection and service can identify potential issues early and preserve your manufacturer’s warranty.
Common Issues and How to Fix Them
1. Stiff or Jammed Windows and Doors
Usually caused by misalignment. Most uPVC hinges and locking systems are adjustable with simple tools.
2. Foggy Double Glazing
This signals a failed seal. The only permanent fix is replacement of the affected glass unit.
3. Water Leaks
Check seals, drainage holes, and weatherstripping. Cleaning and resealing usually solves the issue.
4. Yellowing Frames
Use a non-abrasive uPVC whitening cleaner. If yellowing persists, this might be due to poor material quality—replacement may be the only solution.
Benefits of Year-Round Maintenance
Proper maintenance of uPVC windows and doors results in:
- Enhanced energy efficiency
- Improved security
- Longer lifespan of units
- Maintained curb appeal
- Reduced repair costs
A well-maintained uPVC system is not just a functional asset—it is a valuable contributor to your home’s overall performance and aesthetics.