Steel Doors, Windows & Partitions for Design-Led Spaces

Bespoke steel windows, doors and internal screens, designed for high-end homes and commercial spaces. We manage everything from survey and CAD drawings to finish selection and installation, giving you the slimline industrial look with a far more complete service.

Built for Projects Where Detail Matters

Steel windows and doors continue to be a standout choice in both modern and traditional architecture. Their appeal lies in a unique combination of strength, precision and visual refinement. Unlike bulkier alternatives, steel-framed doors and windows allow for incredibly slim sightlines, creating larger glazed areas that maximise natural light while maintaining a crisp, structured look.

This balance of strength and elegance makes steel ideal for a wide range of applications. In contemporary homes, it delivers clean lines and open, light-filled spaces. In period or heritage settings, it respects the original character of the building while offering improved performance and durability. Whether used for internal steel doors, full-height glazing or bespoke window configurations, the result is always intentional and design-led.

At The Frameless Door Company, we take this further by offering a fully coordinated approach. From initial survey through to detailed CAD drawings, finish specification and installation, every element is considered as part of the wider architectural scheme. This ensures your steel doors, windows and internal screens are not just fitted into the space, but properly designed as part of it.

What we offer

Why Choose Steel Windows & Doors

Steel remains one of the most refined and reliable materials available for architectural glazing. Its inherent strength allows for slimmer profiles and larger panes of glass, creating a look that feels both minimal and highly engineered. For homeowners, architects and developers alike, it offers a level of detail and longevity that other materials often struggle to match.

The key benefits of steel windows and doors include:

Ultra-slim sightlines: Steel’s strength means less frame and more glass, allowing natural light to move freely through your space.
Structural integrity: Ideal for larger openings and full-height glazing, without compromising stability or performance.
Timeless design: A classic material that works equally well in contemporary homes and heritage properties.
Durability: Steel resists warping, cracking and movement, making it a long-term investment for both internal and external applications.
Design flexibility: Bespoke sizing, multiple configurations and a wide choice of finishes ensure every installation feels tailored.

When combined with a considered design and installation process, steel doors and windows become more than just functional elements. They act as defining architectural features, shaping how light, space and movement are experienced throughout a property.

A Complete Process, Designed Around Your Project

We don’t just supply steel windows and doors. We provide a fully coordinated service that ensures every detail is considered from the outset. This approach is especially valuable for design-led homes, architectural projects and developments where precision and clarity are essential.

Our process is structured to give you confidence at every stage:

1. Initial Consultation

We start by understanding your project, your space and your design goals. Whether you are a homeowner, architect or contractor, we tailor our recommendations to suit both aesthetic and practical requirements.

2. Site Survey

Accurate measurements and site conditions are critical. We carry out a detailed survey to ensure your steel doors, windows or internal screens are specified correctly from the start

3. CAD Drawings & Technical Design

We produce clear CAD drawings for approval, allowing you and your wider project team to visualise proportions, configurations and key details before manufacture begins. This step is particularly important for coordinating with architects and builders.

4. Finish & Hardware Specification

You can select from a wide range of powder-coated colours and premium finishes, along with carefully chosen hardware. Every element is considered to ensure a cohesive, design-led result.

5. Manufacture & Installation

Once approved, your bespoke steel elements are manufactured to specification and installed by experienced professionals, ensuring a precise fit and smooth operation.

This end-to-end process ensures your steel windows and doors are not just fitted into a space, but fully integrated into the architecture of your project.

Applications for Steel Windows & Doors

Steel doors, windows and internal glazing can be used across a wide range of spaces. Their versatility makes them suitable for both structural openings and interior design features, helping to shape how rooms are divided, connected and experienced.

Common applications include:

Internal steel doors
Ideal for separating living spaces while maintaining light flow. Often used between kitchens and lounges, hallways and reception rooms, or to create defined zones within open-plan layouts.
Steel patio and garden doors
Perfect for connecting interior spaces with outdoor areas. Slim profiles maximise views and natural light, while maintaining a strong architectural presence.
Kitchen and dining partitions
Steel-framed glazing can subtly divide spaces without closing them off, offering both openness and separation where needed.
Home office screens
Create a dedicated workspace without losing the sense of openness. Acoustic glazing options can also help improve privacy and reduce noise.
Steel windows for extensions
A popular choice for rear extensions and renovations, where large glazed areas and clean lines help create bright, modern spaces.
Heritage and listed property replacements
Steel windows and doors can be designed to respect original proportions and detailing, making them suitable for period homes and conservation-sensitive projects.
Commercial and office partitions
Used to divide workspaces while maintaining visibility and light. A strong choice for design-led offices, studios and commercial interiors.

Each application can be fully customised in terms of size, configuration and finish, ensuring your steel windows and doors work both functionally and visually within your space.

Finishes That Elevate the Detail

The finish of your steel windows and doors plays a defining role in how they sit within the wider space. Beyond form and function, it’s the finish that brings everything together, complementing surrounding materials, hardware and architectural features.

We offer a carefully curated range of finishes to suit both contemporary and traditional interiors.

These finishes can be coordinated with door handles, hinges and surrounding joinery, helping to create a cohesive and considered design throughout your space.

Whether you’re aiming for a bold architectural statement or a more understated, integrated look, our bespoke steel doors and windows can be finished to reflect your vision down to the finest detail.

Powder-Coated Colours

>Our powder-coated steel doors and windows are available in a wide range of RAL colours, allowing you to match or contrast with your interior palette. From classic black and soft neutrals to bold, design-led tones, each finish is applied for durability and consistency.

Standard black and white finishes
Full RAL colour range available
Matte, satin or gloss options
Consistent finish across doors, windows and screens

Metallic and Special Finishes

For projects where detail is everything, we also offer premium metallic and plated finishes that add depth and character. These finishes are ideal for high-end homes and interiors where subtle variation and texture are key.

Antique brass
Bronze finishes
Brushed steel
Polished and satin metal options

Homeowners

For homeowners, it’s about creating a space that feels considered and refined. Steel doors and internal screens are often used to define open-plan areas, connect rooms or bring more light into darker parts of the home.

We guide you through the process, from initial ideas through to installation, ensuring the final result feels both functional and beautifully integrated.

Architects & Designers

We work closely with architects and interior designers to ensure every detail aligns with the wider scheme.

Our CAD drawings, finish options and flexible configurations make it easier to specify steel-framed doors and windows with confidence, while maintaining clean lines and consistent detailing throughout the project.

Developers & Contractors

For developers and contractors, reliability and clarity are key. Our structured process, from survey to installation, helps streamline delivery and reduce uncertainty on site.

Whether it’s a single plot or a multi-unit development, we provide bespoke steel doors and windows that meet both aesthetic and practical requirements.

Technical Options & Specifications

Every project is different, which is why our steel windows and doors are fully customisable to suit both the design intent and the practical requirements of your space. From glazing and thermal performance through to configuration and detailing, each element is carefully specified to ensure a precise and long-lasting result.

Key technical options include:

Single or Double Glazing
Choose from single or double glazed units depending on whether the installation is internal or external, with options to improve thermal performance where required.
Weather Stripping
For external applications, integrated weather stripping helps improve sealing against the elements, enhancing both comfort and performance.
Thermal Performance
We can advise on suitable configurations to meet thermal requirements, particularly for external doors and windows within extensions and new builds.
Locking Options
A range of locking mechanisms is available, from simple internal latches to more secure multi-point locking systems for external steel doors.
Door and Screen Configurations
Options include single doors, double doors, French-style doors and fixed side screens, allowing you to create layouts that suit your space and opening sizes.
Curved and Bespoke Shapes
Where required, steel frames can be manufactured to bespoke shapes, including arched or curved designs, adding a distinctive architectural feature.
Internal Screens with Integrated Doors
Steel partitions can be designed with integrated single or double doors, providing flexibility in how spaces are divided while maintaining a consistent visual language.

By combining these options, we ensure your steel doors, windows and internal glazing are not only visually refined, but also perform exactly as required within your project.

Frequently Asked Questions

What is the difference between steel doors and aluminium doors?

Steel doors offer much slimmer sightlines due to the strength of the material, allowing for larger areas of glass and a more refined, architectural look. Aluminium doors tend to have thicker frames and a more contemporary systemised appearance, whereas steel provides a more premium, design-led finish.

Are steel windows and doors suitable for internal use?

Yes, steel windows and doors are ideal for internal use. They are commonly used for room dividers, internal doors and partitions, helping to define spaces while allowing natural light to flow through the property.

Can steel doors be powder coated in any RAL colour?

Yes, steel doors and windows can be powder coated in a wide range of RAL colours. This allows you to match your interior scheme or create a contrasting feature, with options available in matte, satin or gloss finishes.

Do you provide CAD drawings before manufacture?

Yes, we provide detailed CAD drawings as part of our process. This allows you and your project team to review and approve dimensions, configurations and key details before manufacture begins.

Are steel doors available double glazed?

Yes, steel doors can be manufactured with double glazing where required. This is particularly beneficial for external doors, helping to improve thermal performance and energy efficiency.

Can steel windows suit listed or heritage properties?

Yes, steel windows are often specified for listed and heritage properties because they can replicate traditional profiles while offering improved durability and performance. Each project should be assessed to ensure it meets any relevant planning or conservation requirements.

Do you offer supply and installation?

Yes, we offer a complete service including supply, survey, CAD drawings and professional installation, ensuring a smooth and coordinated process from start to finish.

What finishes are available for hardware?

We offer a range of hardware finishes including antique brass, bronze, brushed steel and other premium options. These can be selected to complement your doors, windows and overall interior design scheme.

Where can I check official guidance on planning or listed buildings?

If your project involves a listed property, a conservation area, or external changes to windows and doors, it’s worth reviewing official guidance before work begins. You can find helpful information on the UK Government planning permission guidance and the Planning Portal. For project-specific advice, it is also sensible to speak with your architect or local planning authority.