How to Maintain Your Windows for a Longer Life?

One of the main reasons homeowners choose modern uPVC windows is their legendary durability and low maintenance. Unlike old wooden frames that require frequent sanding, staining, and painting, modern systems from REHAU or Vivaplast are built to last a lifetime. However, the term “low maintenance” does not mean “no maintenance.”

Your windows are complex mechanical systems with dozens of moving parts that endure wind, dust, and massive temperature fluctuations throughout the year. Taking just 30 to 40 minutes twice a year (ideally in spring and autumn) to care for your windows can extend their lifespan by decades and ensure they continue to operate as smoothly as the day they were installed. Here is our comprehensive guide to professional window care.

1. Regular Cleaning of the Profiles

The high-gloss surface of a quality uPVC profile is designed to repel dirt, but urban dust and pollution will inevitably leave their mark. For general cleaning, use a soft cloth and a mild solution of soapy water or a specialized uPVC cleaner.

Crucial Warning: Never use abrasive cleaning agents (like scouring powders), wire sponges, or aggressive solvents like acetone, thinners, or gasoline. These chemicals can permanently scratch the surface, make it porous (which leads to faster staining in the future), or even strip away the protective UV coating that prevents your frames from yellowing or becoming brittle. A simple bi-annual wipe-down is all it takes to keep your windows looking brand new.

2. Lubricate the Hardware: The “Engine” of the Window

The internal hardware—the hinges, handles, and the complex interlocking mechanisms around the entire sash—experience constant friction. To prevent premature wear and ensure easy operation, regular lubrication is necessary. Apply one or two drops of light machine oil (such as sewing machine oil) or a technical silicone-based spray to all visible moving metal parts.

Pay special attention to the locking “mushrooms” and the hinges. This keeps the movement effortless and prevents “stiff handle” syndrome, which is the most common cause of broken internal gears. If you feel the handle becoming difficult to turn or hear a squeaking sound, don’t use force—simply lubricate the mechanism.

3. Care for the Rubber Seals

The rubber seals (gaskets) are what provide the essential airtightness and save you from drafts and water ingress. Over time, exposure to intense sun and temperature changes can cause the rubber to dry out and lose its flexibility.

At least once a year, wipe the seals clean with a damp cloth and apply a thin layer of technical petroleum jelly, silicone spray, or a specialized rubber care product. This maintains their elasticity and ensures they continue to seat perfectly against the frame. Soft, supple seals are the key to a quiet home and a lack of condensation issues.

4. Seasonal Adjustments (Summer/Winter Mode)

Many homeowners are unaware that most modern hardware systems allow you to adjust the “pressure” of the sash against the frame. In winter, you can slightly increase the pressure for maximum airtightness. In summer, you can loosen it to allow the seals to “breathe” and prevent them from becoming permanently compressed or deformed by the extreme heat. This is usually done by turning the locking pins (cams) with an Allen key. If you aren’t sure how to do this, consult your supplier or a technician.

5. Check the Drainage Channels

Every uPVC window has small drainage slots built into the bottom of the frame. Their purpose is to direct any moisture that gets inside the profile back out to the exterior. Periodically check that these holes are not blocked by dust, leaves, or insects. A quick clean with a thin brush or a pipe cleaner will ensure that water drains away correctly, preventing internal moisture buildup and potential hardware corrosion.

By following these professional steps, your windows from СОФ ДИЗАЙН will look and function perfectly for 30 years and beyond. Remember—a little bit of care today saves you from expensive repairs or replacements tomorrow!