External Steel Doors
Maximum protection against break-ins, made to measure and installed by our own team.
Not sure which door? Call 0121 824 7924
Same-Day Quotes
Within 24 hours
1,000+ Installations
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Customisable Options
Designed specifically for your property
24-Month Warranty
Added peace of mind
Expert Installation
Installed by our experienced team
External Steel Doors
Iconic Doors proudly supplies and manufactures high-performance steel windows and doors using premium Forster steel profile systems, reinforcing our position as a trusted specialist in bespoke steel glazing solutions.
Engineered in Switzerland, Forster systems such as Forster Unico are thermally broken and specifically designed for external applications—making them the recommended choice for the UK climate. Unlike non-thermally broken steel profiles, Forster systems provide superior thermal insulation, condensation control, and long-term durability, ensuring excellent performance in variable and demanding weather conditions.
By utilising Forster profiles, we manufacture elegant steel windows and doors that combine ultra-slim sightlines with modern standards of energy efficiency, security, and weather resistance. These systems are ideal for external steel windows and doors, while also offering refined solutions for internal steel partitions where a cohesive architectural aesthetic is required.
All products are bespoke and made to measure, suitable for residential, commercial, and heritage projects worldwide. From contemporary developments to sensitive restorations, our Forster-based steel systems deliver exceptional performance without compromising on design.
Contact Iconic Doors today to request a quote or discuss your project and discover why Forster steel profiles are the preferred solution for high-quality external steel windows and doors in the UK.
Why choose this door?
Best applications
Designed for a range of residential and architectural applications, with options tailored to suit different properties and spaces.
How It Opens
Available in a range of opening configurations to suit your entrance, layout and preferred way of using the space.
Space Requirements
Designed around your available opening, with configurations tailored to make the most of the space.
Design Benefits
Combines refined architectural styling with practical performance, creating a door that complements your property.
Profile Options
Choose from a range of profile options to achieve the right balance of proportions, performance and visual style.
Glass Options
Select from a range of glazing options to balance natural light, privacy, performance and visual appeal.
Colour Options
Choose from a wide range of colours and finishes to complement your property’s architecture and personal style.
Hardware
Complete your door with carefully selected handles, locks and accessories for a cohesive and functional finish.
Customise Your External Steel Doors
Create an external steel door that is tailored to your home, your space and your personal style. From the profile and layout to the glass, colour and hardware, every detail can be selected to create a door that feels uniquely yours.
Choose Your Profile
Choose a profile from the external steel system to suit your door design, proportions and architectural style.
Choose Your Layout
Choose a configuration designed around your entrance, from single and double doors to bespoke arrangements.
Choose Your Glass
Select from glazing options available within the specified external steel system, balancing privacy, natural light and visual appeal.
Choose Your Colour
Choose a powder-coated finish in a RAL colour to complement your property’s architecture.
Choose Your Hardware
Complete your door with compatible handles, locks and hardware available for the specified external steel system.
Our Like-for-Like Price Promise
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Planning a Steel Door Project?
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Have questions? Call us at 0121 824 7924
External Steel Doors in Real Projects
Bespoke External Steel Doors, Designed for Real Homes
Explore a completed external steel door installation and see how our bespoke approach brings together strength, architectural design and everyday functionality.
From the door configuration and profile to the glass, colour and hardware, every detail was selected to complement the property while delivering lasting performance and a refined finish.
What Our Customers Say
External Steel Doors FAQs
What are thermally broken steel windows, and why do they matter?
Thermally broken steel windows are designed with an integrated insulation barrier—known as a thermal break—that separates the internal steel frame from the external one. This construction significantly reduces heat transfer through the frame, preventing thermal bridging.
In practical terms, thermally broken systems such as those using Forster Unico XS profiles help maintain a comfortable indoor temperature throughout the year—keeping heat in during winter and reducing heat gain in summer. They deliver excellent energy efficiency while preserving the slim sightlines and structural strength that steel is known for.
An added benefit is the reduction of internal condensation and frost in colder climates, helping protect interior finishes and improve occupant comfort. For projects in climates with temperature variation, thermally broken steel windows and doors are essential for meeting modern energy regulations and achieving long-term performance.
How do I request a quote or get more information about Iconic Doors’ Forster steel windows and doors?
Requesting a quote is straightforward. You can contact Iconic Doors via our website or by phone to arrange a free consultation. Our team will review your project requirements, advise on the most suitable Forster steel profile system—or alternative steel solutions—and provide a detailed, transparent quotation.
We frequently work alongside architects, designers, and contractors at the early stages of a project to ensure all technical and design requirements are addressed. Whether you have full drawings or are still exploring options, we’re happy to guide you through the process. Simply share your plans or ideas, and we’ll help you select the right solution with no obligation.
What is the typical lead time for manufacturing steel windows and doors?
Lead times vary depending on the scope, complexity, and level of customisation involved. In general, bespoke steel windows and doors are manufactured within a timeframe ranging from several weeks to a few months.
Smaller or less complex orders can be completed more quickly, while larger projects featuring multiple custom units or specialist finishes may require additional time. When providing your quotation, we will also outline an estimated production and delivery schedule.
We understand the importance of construction timelines and coordinate closely with our clients to ensure smooth planning and on-time delivery. With experience in global logistics, we work efficiently to minimise delays and keep your project on track.