How to Maintain Aluminium Joinery for Decades of Performance

Introduction: Built to Last, Easy to Care For

One of the greatest advantages of aluminium joinery is its exceptional durability paired with minimal maintenance requirements. Unlike timber, aluminium doesn’t warp, swell, or rot, and unlike PVC, it won’t yellow or become brittle over time. At TermoExpress, we manufacture our products using premium Cortizo Systems and advanced finishing techniques to ensure they remain beautiful and functional for decades. However, even the toughest materials benefit from regular care. This guide outlines simple but effective ways to maintain aluminium windows, doors, and façades for long-term performance.

1. Routine Cleaning

Dust, pollution, and environmental residue can accumulate on frames and glass over time. Regular cleaning not only maintains appearance but also prevents build-up that could affect moving parts or seals.

  • Frequency: Every 3–4 months for urban environments; more often in coastal or industrial areas.
  • Method: Use a soft cloth or sponge with mild soap and warm water.
  • Avoid: Abrasive cleaners, steel wool, or harsh solvents that can damage finishes.

2. Caring for Powder-Coated and Anodised Finishes

The finishes applied by TermoExpress are designed for longevity, but gentle care will keep them looking like new.

  • Rinse frames with clean water before wiping to remove dust particles.
  • For stubborn marks, use a pH-neutral cleaner.
  • Avoid high-pressure washers directly on seals or joints.

3. Checking and Lubricating Hardware

Handles, locks, and hinges should operate smoothly. Twice a year:

  • Apply a small amount of silicone spray or light machine oil to moving parts.
  • Tighten any loose screws.
  • Check locking points for secure engagement.

4. Inspecting and Maintaining Seals

Gaskets and weather seals are crucial for energy efficiency and weather resistance. Over time, they can dry out or loosen.

  • Inspect annually for cracks, gaps, or wear.
  • Replace damaged seals promptly to prevent drafts or water ingress.

5. Glass Care

Use a glass cleaner and soft cloth to maintain clarity. For Low-E coated glass, follow manufacturer recommendations to avoid damaging the coating. Avoid scraping tools that could scratch the surface.

6. Special Considerations for Coastal Properties

Salt air can accelerate corrosion on any material, including aluminium. For coastal installations:

  • Rinse frames monthly with fresh water.
  • Choose marine-grade finishes for maximum resistance — something TermoExpress offers on request.

7. When to Call a Professional

While routine maintenance is simple, certain issues require expert attention:

  • Frame misalignment or difficulty operating sliding panels.
  • Sealant or gasket replacement.
  • Hardware upgrades or retrofitting new glazing.

Conclusion: A Little Care Goes a Long Way

Aluminium joinery from TermoExpress is engineered for decades of reliable service with minimal upkeep. By following a few straightforward maintenance steps, homeowners and businesses can preserve both performance and appearance for the long term. With the right care, your aluminium windows and doors will continue to deliver beauty, comfort, and efficiency — year after year.