Window 0V 2H - Double Casement Portrait

Window 0V 2H - Double Casement Portrait

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Window 0V 2H - Double Casement Portrait

Window 0V 2H - Double Casement Portrait

Steel Casement Windows

Our steel casement windows are crafted to the highest industry standards using OTTOSTUMM hot-rolled solid steel, blending time-honored steel manufacturing techniques with modern precision engineering. The result is exceptional strength, enduring durability, and refined architectural beauty — all while maintaining the slim, minimalist sightlines designers appreciate.

Each window comes standard with Low-E dual-pane glass to enhance thermal performance and energy efficiency. A selection of textured and privacy glass options is available, along with customizable gridlines to align with your architectural vision.

Standard Casement Window Materials

  • OTTOSTUMM Hot-Rolled Solid Steel

  • Dual-Pane Tempered Glass

Thermally Broken Casement Window Materials

  • OTTOSTUMM Cold-Formed Galvanized Steel

  • Dual-Pane Tempered Glass

Steel Casement Windows

Our steel casement windows are crafted to the highest industry standards using OTTOSTUMM hot-rolled solid steel, blending time-honored steel manufacturing techniques with modern precision engineering. The result is exceptional strength, enduring durability, and refined architectural beauty — all while maintaining the slim, minimalist sightlines designers appreciate.

Each window comes standard with Low-E dual-pane glass to enhance thermal performance and energy efficiency. A selection of textured and privacy glass options is available, along with customizable gridlines to align with your architectural vision.

Standard Casement Window Materials

  • OTTOSTUMM Hot-Rolled Solid Steel

  • Dual-Pane Tempered Glass

Thermally Broken Casement Window Materials

  • OTTOSTUMM Cold-Formed Galvanized Steel

  • Dual-Pane Tempered Glass

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Reviews

Don’t take our word for it. See what people are saying about us.

Amazing quality and communication. Delivered exactly as expected. Highly recommend!
N
Nyler Mith
Amazing quality and communication. Delivered exactly as expected. Highly recommend!
A
Alex Norman
Amazing quality and communication. Delivered exactly as expected. Highly recommend!
N
Nyler Mith
Amazing quality and communication. Delivered exactly as expected. Highly recommend!
A
Alex Norman

  • Steel windows and doors are architectural systems made from high-strength steel frames that support glass panels. They are known for their slim sightlines, durability, and timeless appearance. Steel allows for large glass areas with minimal frame thickness, creating a sleek and elegant look.

  • Strength: Steel is significantly stronger than aluminum or wood, allowing for thinner frames and larger glass panels.
    Durability: Steel resists warping, cracking, and expansion better than wood.
    Longevity: Properly finished steel can last decades with minimal maintenance.
    Design: Steel offers narrow profiles and a refined, architectural aesthetic.

  • Yes. Modern steel systems include:

    • Thermal breaks to reduce heat transfer
    • Double or triple glazing options
    • High-performance weather seals

    When properly installed, steel windows and doors can meet or exceed energy code requirements.

  • Steel can rust if left untreated. However, modern steel systems are:

    • Hot-dip galvanized
    • Powder coated or factory finished
    • Properly sealed during installation

    With proper finishing and maintenance, corrosion is highly resistant—even in coastal environments.

  • Steel systems can last 50+ years when properly maintained. Many historic steel windows installed in the early 20th century are still in service today.

  • Yes. Steel is one of the strongest framing materials available. Steel doors offer:

    • High structural integrity
    • Enhanced locking hardware compatibility
    • Excellent resistance to forced entry

    They are commonly used in both luxury residential and commercial applications for this reason.

  • Absolutely. Steel systems can be customized in:

    • Size and configuration
    • Fixed, casement, awning, pivot, sliding, or bi-fold designs
    • Color finishes
    • Glass type (clear, frosted, low-E, laminated, etc.)
    • Divided lite patterns

    Custom fabrication allows for highly tailored architectural designs.

  • Yes. Steel is popular in:

    • Modern and minimalist architecture
    • Industrial-style designs
    • Contemporary farmhouses
    • Historic renovations

    Its slim profile complements both traditional and modern aesthetics.

  • Steel systems typically have a higher upfront cost than vinyl or aluminum. However, they offer:

    • Longer lifespan
    • Greater durability
    • Increased property value
    • Lower long-term replacement costs

    Many homeowners and developers view steel as a long-term investment.

  • Steel windows and doors require minimal maintenance:

    • Occasional cleaning with mild soap and water
    • Inspect seals periodically
    • Touch up finishes if damaged

    Factory finishes are designed for long-term performance.

  • Yes. Most modern steel systems are engineered to meet:

    • Structural load requirements
    • Energy codes
    • Safety glazing standards
    • Impact ratings (if specified)

    Always confirm with your manufacturer or installer for your region’s specific codes.

  • Steel is 100% recyclable and often made from recycled material. Its long lifespan also reduces replacement frequency, making it a sustainable building material choice.

Intentional design

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Made with care

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Real people making great products

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