Aluminum vs. Steel Windows: A Complete Comparison

Choosing between aluminum and steel windows affects your building's security, appearance, and longevity.

Both materials have their place in Kenyan construction. Here is an honest comparison to help you decide.

Aluminum Windows

Pros:

• Lightweight and easy to install
• Corrosion-resistant, ideal for coastal areas
• Slim frames allow more natural light
• Low maintenance — no painting required
• Modern appearance
• Available in various powder-coated colours

Cons:

• Less strong than steel
• Higher thermal expansion
• Can dent under impact

Steel Windows

Pros:

• Extremely strong and durable
• Better security against break-ins
• Fire-resistant
• Lower material cost than aluminum

Cons:

• Heavy — requires stronger wall framing
• Prone to rust if not properly galvanised
• Requires periodic painting
• Thicker frames reduce glass area

Cost Comparison

• Steel windows: KES 3,000 - 6,000 per sqm
• Aluminum windows: KES 6,000 - 15,000 per sqm

Which Should You Choose?

For residential homes, aluminum windows offer the best balance of aesthetics, durability, and low maintenance. For industrial buildings or areas requiring high security, steel windows remain a solid choice.

At Roshem, we fabricate and install both types. Our relationship with Kenwa Hardware ensures competitive pricing on quality materials.