Year-end checklist: how to check your windows and prepare them for 2026
Date: December 26, 2025
The end of the year is the perfect time to renovate and prepare your home. In addition to the traditional cleaning and reorganizing, there is one key point that often goes unnoticed: checking your windows.
Among the many benefits offered by PVC windows, one that really sets them apart is how little maintenance they require. While other materials require constant upkeep, PVC does not need to be treated for waterproofing or repainted. However, this does NOT mean that it does not require any maintenance whatsoever.
If your home or project has Deceuninck windows, this checklist will help you keep them in optimal condition and make the most of PVC technology and its thermal and acoustic properties.
Daily cleaning
PVC windows should be cleaned regularly, or at least when there are visible signs of dirt. For non-porous, smooth surfaces and everyday dirt caused by dust and rain, a liquid soap solution, warm water, and a soft cloth are sufficient. For windows with colored film, cleaners must be suitable for acrylic surfaces. Cleaning products can cause different types of damage to PVC profiles.
Products for cleaning PVC
Suitable cleaning products:
- Dishwasher detergent.
- Mild, neutral all-purpose cleaners.
- Cleaners supplied by the manufacturer.
- Alcohol-free glass cleaners.
- Clean water.
Products NOT suitable for cleaning:
- Abrasives or chemicals that could damage the surface, such as removers, enamels, gasoline, solvents, or similar substances, even if they are part of the composition of cleaners.
- Cleaners with orange or lemon scent.
- Cleaners containing ammonia.
- Cleaners containing sulfur (tile cleaners).
- Abrasive or sandy cleaners.
- Tools such as steel cables, abrasive sponges, or scouring pads.
Proper maintenance not only extends its service life, but also ensures comfort, energy efficiency, and safety throughout the year. Deceuninck recommends the following regular cleaning procedure, as needed:
Clean the profiles with a soft cloth
Use soap and water to clean the profiles.
Ventilate your spaces regularly
Renew the air several times a day to prevent humidity.
Do not use caustic fluids!
Use only soapy water or mild products.
Regular cleaning of the exterior
Remove dust, pollen, and accumulated dirt.
Lubricate the fittings
Lubricate hardware, handles, and hinges once a year.
Tighten the handles
Secure loose screws.
Joint care
Clean the joints with a cloth dampened with special lubricant.
Clean the drainage openings
Prevent clogging by periodically checking the frame drains.
Regular cleaning of folds
Remove dust and debris from internal areas to prevent mold and dirt buildup.
Preparing for 2026: Does your window still meet your needs?
After checking each component, ask yourself:
Preparing your home for 2026 starts with protecting its envelope. Checking your windows at the end of the year ensures comfort, safety, and energy efficiency for the coming months. With Deceuninck PVC windows, this process is simple and effective thanks to the quality of their materials and the technology applied in each system.
If you need advice, maintenance, or are thinking about replacing your windows, the Deceuninck team is ready to assist you every step of the way.
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