Black Steel Doors on a modern timber-clad exterior with full-height glazing, open black framed door, cobbled paving and a large blue sky above.

Black Steel Doors, Made to Measure by Crittall

Few design choices carry the authority of black steel doors. Black is the original Crittall finish, rooted in the Art Deco and industrial movements that made steel framed glazing an architectural icon, and it remains the most sought after colour for steel doors today. As an approved Crittall Specialist Partner, Lightfoot Windows supplies and installs genuine Crittall black steel doors across the UK, each one made to measure, hot dip galvanised and finished in a durable black Duralife polyester powder coat.

Whether you are zoning an open plan kitchen with black framed glass doors, replacing tired timber with black steel french doors to the garden, or specifying black metal doors for a commercial fit out, our team manages everything from survey and specification through to expert installation and aftercare.

Why Choose Black Steel Doors from Lightfoot

Genuine Crittall products, specialist knowledge and a complete supply and installation service. Here is what sets our black steel doors apart.

Security as Standard

High strength steel profiles, multipoint locking and toughened safety glass protect your home without compromising elegance.

Outstanding Thermal Performance

Double glazing, weather stripping and thermally enhanced profile options keep heat in and draughts out all year round.

Duralife Black Finish

Hot dip galvanised steel with a factory applied black polyester powder coat that resists scratches, moisture and fading.

Made to Measure

Every door is manufactured to your exact dimensions and configuration, from single internal doors to grand French door sets.

Crittall Specialists Since 1935

Decades of dedicated Crittall expertise, guiding your project from first enquiry to finished installation.

Nationwide Supply and Installation

Professional surveying, fitting and aftercare wherever you are in the UK, all handled by our own experienced team.

Black Steel Doors in a modern rear extension with black grid glazing, white interior furniture, patio seating and a flush floor skylight.

Why Black? The Original Crittall Colour

Black is not a passing trend. It is the colour in which Crittall steel glazing first defined the look of Art Deco interiors and industrial architecture, specified by renowned architects for over a century. Choosing black steel doors is choosing the authentic expression of the product, a finish with genuine design heritage behind it.

The slim black profiles and iconic grid design maximise glass area and natural light while framing views like artwork. The result works everywhere, from Victorian terraces and period farmhouses to contemporary open plan extensions, boutique hotels and commercial interiors.

Black Internal and External Steel Doors

Internally, black framed glass doors are the defining choice for open plan living. Slim steel frames and generous glazed panels create sophisticated zones within a space, separating a kitchen from a dining area or a hallway from a living room without ever blocking light. Sliding and hinged configurations are available, and fire rated options achieve an FD30 rating where regulations require it.

Externally, black steel doors deliver performance to match their presence. Multipoint locking and toughened glazing come as standard, while thermally enhanced profiles offer superior insulation and weather protection with the same refined sightlines. Single doors, double doors, black steel french doors and sliding sets are all available, with clear, frosted or reeded glazing to suit.

Black Steel Doors between a white kitchen and glazed conservatory with black framed panels, pale tiled floor, grey seating and garden views.
Black Steel Doors on a red brick house with black grid glazing, stone patio, clay tiled roof and garden planting.

Built to Last a Lifetime

Every Crittall door we supply is manufactured in the UK from high grade steel, hot dip galvanised for corrosion resistance and finished with the Duralife polyester powder coat in deep, consistent black. Unlike timber doors that warp, swell and demand regular repainting, steel doors hold their line and their finish for decades, needing nothing more than an occasional wipe with a soft cloth.

All products are rigorously tested for weather resistance and durability, with effective double weather stripping to guard against draughts, and full compliance with current UK building regulations.

Design Options and Hardware

Black steel doors are endlessly configurable. Choose your opening style, grid pattern, sidelights and glazing, then complete the look with hardware from the Classic and Luxury collections, from understated lever handles to distinctive Art Deco inspired pulls. Our team will guide you through every option to create a door that is unmistakably yours.

Aluminium doors with black steel-look frames opening from a modern living room onto a sunny garden patio.
Black Steel Doors on a brick townhouse rear extension with black grid glazing, patio railings, glass floor panels and garden views.

Supplied and Installed by Lightfoot Windows

Crittall is a registered trademark for authentic steel products, and no imitation replicates the genuine article. As Crittall specialists since 1935, Lightfoot Windows offers something few can match: deep product knowledge, FENSA certified installation and a complete service from initial consultation and survey through to fitting and aftercare, anywhere in the UK.

Ready to bring black steel doors to your project? Contact our team today for expert guidance and a tailored quotation.

Latest Projects

Black Steel Door Questions, Answered

Considering black steel doors for your home or project? These are the questions our customers ask most often. For anything else, our team is always happy to help.

Are black steel doors secure?

Yes. Genuine Crittall black steel doors are built from high strength steel profiles with multipoint locking systems and quality hardware fitted as standard. Glazing is typically toughened safety glass, giving external doors excellent resistance to forced entry and complete peace of mind.

Will the black finish fade or need repainting?

No. Every door is hot dip galvanised and then finished with the Duralife polyester powder coat, a factory applied finish that resists scratching, moisture and UV fading. Unlike painted timber, it never needs sanding or repainting. An occasional wipe with a soft cloth keeps it looking pristine.

Are black steel doors energy efficient?

Yes. External black steel doors are double glazed as standard, with thermally enhanced profiles available for superior insulation. Effective weather stripping protects against draughts, keeping your home comfortable year round and fully compliant with current UK building regulations.

Can I have black steel doors internally as well as externally?

Absolutely. Black framed internal glass doors are one of the most popular ways to divide open plan spaces without losing light, ideal for kitchen diners, home offices and living room partitions. Where fire safety matters, fire rated internal options achieve an FD30 rating without compromising the slim, elegant frame.

What styles and configurations are available?

Black steel doors are available as single doors, double doors, French doors and sliding doors, with sidelights, fanlights and bespoke grid patterns to suit your property. Glazing choices include clear, frosted and reeded glass, with a full range of classic and luxury hardware finishes.

How much do black steel doors cost?

Every Crittall door is made to measure, so pricing depends on the size, configuration and glazing you choose. Contact our team for a tailored quotation and honest, expert advice on the right specification for your project.

What our customers say

Despite being a small project by comparison, from start to finish our project has been executed with precision, promptness and professionalism to deliver a thing if beauty which as we...

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Sharman & Phil

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LOVE. LOVE. LOVE my windows and doors! They look amazing! ? Lightfoot Windows were a pleasure to deal with. Polite, helpful and informative. Plan to use them again for a...

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Adiba Ghauri

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Very efficient and thorough. Quick installation. Very helpful and friendly staff. My new Crittall windows are beautiful.

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Susan Tuffy

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I would like to thank the team at Lightfoot windows for supplying and fitting my new Crittal windows, from start to finish the service has been great and the product...

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Lee

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Excellent windows (Heritage Aluminium french doors). Our builder was impressed with the excellent quality and will be using again. Efficient fitting, fitted perfectly.

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Sophia Barlow

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I am very pleased with the Crittall windows as supplied and fitted by Lightfoot. I visited their showroom and discussed the requirements, and these were met in full. From the...

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David SC

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Probably one the best experiences we've had with a building contractor/supplier. We went to the showroom where we were given all the information we needed and shown the various options...

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Paul Phillips

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Lightfoot supplied & installed a steel Crittal arch for an internal opening. Both the design and install process was very professional and we are delighted with the product. Would highly...

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Richard Simpson

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We have used Lightfoot Windows on two occasions now, and both times their service has been exemplary. The products we purchased are also of a very high quality and we...

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I cannot recommend Lightfoot highly enough. I used to run a business, and the sheer pleasure and relief of being communicated with properly and courteously means a lot. It’s rare...

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Catherine C

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So happy to have found Lightfoot Windows who supplied fire rated Crittall doors and screens. Great showroom full of inspiration. Unhurried great advice given, quote and contract really streamlined and...

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