What Is Anodising — And Why It Matters for Aluminium Windows & Doors

When it comes to aluminium windows and doors, strength and looks go hand in hand. One of the best ways to boost both is anodising — a finishing process that hardens the surface and adds a sleek, long-lasting metallic finish, perfect for modern homes.

What Exactly Is Anodising?

Anodising is an electrochemical process that turns the outer layer of aluminium into a tough, protective oxide coating.

Unlike paint or powder coating, this layer doesn’t sit on the surface — it becomes part of the metal itself.

✅ Extra-hard surface✅ Highly resistant to corrosion, scratches, and UV✅ Ideal for outdoor aluminium doors and windows

How the Process Works

1️⃣ Clean: The aluminium is thoroughly cleaned.2️⃣ Submerge: It’s placed into an acid-based bath.3️⃣ Charge: An electric current passes through, forming microscopic pores.4️⃣ Form: Oxygen bonds with aluminium, creating an oxide “barrier layer.”5️⃣ Colour & Seal: Pigments can be added before sealing for durability.

Colour & Finish Options

Anodising gives huge design flexibility for both homes and commercial projects.

Choose from over 25 finishes — including silver, champagne, bronze, black, and modern metallic tones.

At Windows Instock, we partner with leading Melbourne anodisers to offer both stocked and custom colours. Our team can provide sample swatches so you can feel the real texture before deciding.

Why Choose Anodised Aluminium

✔ Durability — The finish won’t peel or chip; it’s part of the metal.✔ Low Maintenance — No repainting needed, easy to clean.✔ Architectural Look — Elegant metallic sheen suits modern façades.✔ Sustainability — Long lifespan and minimal waste in production.

Talk to the Melbourne Experts

Whether you need anodised aluminium windows, double-glazed doors, or a custom architectural finish, we’ve got you covered.

Our Clayton South facility manufactures commercial-grade aluminium systems that meet Australian Standards — designed for local weather and backed by local support.

📞 1800881777