Steel Window Partition

Custom Steel Windows & Doors

Designed for modern residential and commercial projects.
Custom-built systems with full project support and installation in NY & CT.

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CUSTOM STEEL SYSTEMS

Steel Entry Doors

Steel Entry Doors

Modern or classic steel entry doors, custom-made with or without glass.
Slim profiles, precise geometry, and architectural-grade detailing.
Built with thermally broken steel to meet today's performance standards — ensuring durability, insulation, and refined aesthetics.

Steel Interior Partitions

Steel Interior Partitions

Elegant steel and glass partitions designed to divide spaces while preserving light and openness. Custom fabricated with ultra-slim steel profiles, they create architectural interiors for homes, lofts, and commercial spaces.

Interior Glass Steel Doors

Interior Glass Steel Doors

Create open, light-filled spaces without sacrificing privacy. Our custom interior steel doors offer the perfect architectural transition between rooms, combining industrial strength with a sophisticated, minimalist aesthetic.

Steel French Doors

Steel French Doors

Why choose between iconic style and modern insulation? Our custom Steel French Doors now feature Thermal Break technology and VIG (Vacuum Insulated Glass), offering the slim profile you love with the energy efficiency you need for NYC winters.

Casement Steel Windows

Casement Steel Windows

Experience the perfect blend of industrial strength and architectural beauty. Our custom-made steel casement windows feature ultra-slim profiles that maximize natural light without compromising on durability.

Steel Pivot Doors

Steel Pivot Doors

Engineering meets Artistry. Designed for monumental openings, our custom Pivot Doors offer a seamless, effortless rotation on a concealed axis. Experience a dramatic architectural statement combined with the high-performance thermal insulation and slim steel profiles your property deserves.

Steel Fixed & Picture Windows

Steel Fixed & Picture Windows

Designed for breathtaking spans and minimalist aesthetics. Our fixed steel windows offer the slimmest sightlines in the industry, turning your landscape into a living piece of art.

CUSTOMIZE YOUR VISION

Bespoke steel and glass systems tailored to your design — from arches to complex multi-panel configurations.

Select from premium glass types and custom finishes to match your project precisely.

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ACOUSTIC & THERMAL PERFORMANCE

What is Vacuum Insulated Glass (VIG)?

Vacuum Insulated Glass uses a microscopic vacuum layer between two panes to dramatically reduce heat transfer. Unlike traditional double glazing, there is no gas — meaning almost no heat or sound can pass through.

The result is superior thermal performance and outstanding acoustic insulation, keeping interiors quiet, comfortable, and energy-efficient year-round.

VIG HD
VIG Pro
VIG Basic
VIG 2HD
Vacuum Insulating

What is a Thermal Break?

Steel is naturally conductive, which can lead to heat loss and interior condensation. A thermal break solves this by introducing a high-performance insulated barrier within the frame.

This barrier blocks heat transfer between interior and exterior surfaces, improving energy efficiency while eliminating cold-to-the-touch frames and moisture buildup.

Thermal Break Steel Sample
Traditional
Fineline
Forster XS
Thermal Break Steel Door Window
Steel Window Sample Scaled

WHY WORK WITH OPENSKY

27+ YEARS OF COMBINED EXPERIENCE
CUSTOM STEEL SYSTEMS TAILORED TO YOUR PROJECT
PROJECT GUIDANCE, SUPPLY & INSTALLATION IN NY & CT
5-YEAR WARRANTY
Built With Precision. Made To Last.

FREQUENTLY ASKED QUESTIONS

What makes Opensky Window different?

We combine 27 years of experience with deep knowledge of multiple steel window and door systems, helping architects turn design intent into precise, technically sound, and buildable solutions.

Where are your windows and doors made?

All of our systems are engineered and developed in the United States, following strict architectural and performance standards. Each project is custom-built to meet exact design and specification requirements.

Where is your steel manufactured?

We use premium Swiss steel sourced from Europe, selected for its precision engineering, structural integrity, and long-term durability in architectural applications.

What type of steel do you use?

We use high-quality structural steel designed for strength, slim sightlines, and long-term performance. Our thermally broken systems are engineered to provide durability, corrosion resistance, and modern energy efficiency.

How long does production take?

Production typically takes 4–12 weeks, depending on project scope and design complexity.

How much do custom steel windows and doors cost?

Custom steel windows typically range from $100–$130 per square foot, while custom steel doors range from $130–$200 per square foot. Final pricing depends on size, configuration, glass type, hardware, finish, insulation performance, and installation requirements (how complex or extensive the installation is).

Double Arched Doors (approx. 60" x 96" → 40 sq. ft.)

Low end: 40 × $130 = $5,200

High end: 40 × $200 = $8,000

Includes tempered glass, reinforced hinges, locking system, and high-performance insulation. Price varies with arch complexity, hardware selection, and installation requirements.

Large Arched Window (approx. 48" x 72" → 24 sq. ft.)

Low end: 24 × $100 = $2,400

High end: 24 × $130 = $3,120

Includes high-performance insulation. Price depends on curvature, glazing specifications, and installation requirements.

Are your steel products fully custom?

Yes. All doors and windows are made to order based on your exact measurements and design preferences.

Do you offer installation?

Yes. We provide professional installation services in NY & CT.

Do you offer a warranty?

Yes. All of our products come with a strong 5 years warranty, giving you full confidence and long-term peace of mind.

Are steel windows energy efficient and soundproof?

Yes. We offer insulated, thermally broken systems with advanced glazing options, including VIG (Vacuum Insulated Glass). These systems significantly improve thermal performance while also reducing outside noise — creating a quieter, more comfortable interior environment, especially in urban settings.

Do you offer financing options?

Yes. We provide flexible financing solutions with terms ranging from 2 to 12 years.

Qualified projects are eligible for 0% interest during the first 12 months, with financing available for projects up to $250,000.

This allows homeowners and developers to move forward without compromising on design, materials, or performance — while maintaining full architectural integrity of the project.

OUR PROCESS: FROM VISION TO INSTALLATION

01

Consultation & Design

Share your ideas or architectural plans. We’ll discuss Thermal Break options and VIG glass to ensure a perfectly engineered realization of your dream.

02

Engineering

Our engineers create precise shop drawings for your approval. Master craftsmen begin hand-welding frames for flawless joints and premium finishes.

03

Quality Control

Rigorous multi-point inspection. We carefully crate and ship custom pieces directly to your site in New York or Connecticut in perfect condition.

04

Installation

Expert white-glove installation. We ensure every frame is perfectly fitted, sealed, and polished for a flawless, professional result.

START YOUR PROJECT

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