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TRADING SINCE 1849

Crafting beautiful steel windows and doors since the reign of Queen Victoria.

HANDCRAFTED TECHNOLOGY

High-quality, hand-crafted products that are designed to last a lifetime.

NATIONWIDE COVERAGE

Discover our exceptional products no matter where you are in the UK.

Internal steel doors

Bespoke Design, Built to Order

Every Crittall internal steel door is handcrafted, with black, greys or any RAL colour, clear, frosted or reeded glass and classic bar layouts tailored to your interior. Industry-leading 22mm sightlines and easy-clean finishes keep each bespoke door balanced between form and function.

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Sleek & Stylish Frames 

ultra-slim sightlines maximise glass and natural light.

Range of Configurations

hinged, sliding, pocket, rebate or face-mounted options.

Timeless Design

precision-made steel doors with custom colour, glazing and hardware.

Additional Features

Design Flexibility

Our internal doors are available in a range of configurations, colours, and accessory options including your choice of hardware. Take a look at our downloadable resources for more information.

  • Hardware
  • Downloads

Popular Colours

Black
Traffic Grey
Agate Grey
Light Grey
White
Pastel Green

A colour to suit your home

Find the perfect internal doors for your project by choosing from a wide range of colour options including any RAL colour and our iconic black steel. No matter what look you’re trying to achieve, our team of experts can work with you to design and install your dream internal doors.

Selected: Black

Black

Selected: Traffic Grey

Traffic Grey

Selected: Agate Grey

Agate Grey

Selected: Light Grey

Light Grey

Selected: White

White

Selected: Pastel Green

Pastel Green

Hardware

Hardware

Discover the perfect finishing touches for your Crittall door with our exquisite hardware options, featuring both the timeless Classic Collection and the opulent Luxury Collection to suit every style and preference.

Berkeley Lever Handle

Berkeley Lever Handle

Soho Lever Handle

Soho Lever Handle

Europrofile Lever Handle

Europrofile Lever Handle

Phoenix Lever Handle

Phoenix Lever Handle

B870 Rose Lever Handle

B870 Rose Lever Handle

B860 Rose Lever Handle

B860 Rose Lever Handle

B870 Lever Handle

B870 Lever Handle

B850 Rose Lever Handle

B850 Rose Lever Handle

B860 Lever Handle

B860 Lever Handle

Deco Lever Handle

Deco Lever Handle

B850 Lever Handle

B850 Lever Handle

8760 Sliding Door Pull Handle

8760 Sliding Door Pull Handle

6658 Sliding Door Pull Handle

6658 Sliding Door Pull Handle

6758 Sliding Door Pull Handle

6758 Sliding Door Pull Handle

Sliding Door Pull Handle

Sliding Door Pull Handle

Downloads

  • Case Studies

Our Recent Work

Modern property exterior featuring black crittall windows and doors with glass balustrade balcony

Restoration in rural Sussex by Lightfoot Windows

This project, executed by our specialist reseller Lightfoot Windows, focused on a listed property in...

Modern property with white facade, featuring crittall steel windows and doors

Modern renovation in South Yorkshire by KJA Services

The Crittall House of the Year (CHOTY) awards celebrate our commitment to excellence by recognising...

Exterior of Adelaide House, an office building in London

Crittall windows that truly stand the test of time

Crittall Windows recently returned to Adelaide House in London to replace the steel windows it...

Black steel french internal doors

Crittall House of the Year Award Winner 2023

Congratulations to the deserving winners of this year's Crittall House of the Year Award with...

Full installation of light grey steel bespoke windows, casement windows, and french doors

Crittall House of the Year Award – Runner Up 2023

When the owners were planning the renovation of their house, they knew they wanted to...

Crittall Window Display

Crittall’s Window Display

A town centre shopping mall in Stroud, Gloucestershire, has been given a new lease of...

Compare Crittall® Door Styles

Find the right door for your project.

Why Choose Crittall Internal Steel Doors?

Unlike wooden doors that warp and need regular staining, Crittall internal doors are engineered for permanence using hot-dipped galvanised steel and a Duralife polyester powder-coat that resists scratches and moisture and needs only an occasional wipe with a soft cloth.

Minimalist profiles and the iconic grid design maximise glass and natural light and, in black, grey or any RAL colour, complement everything from industrial lofts to period homes.

Internal doors in hotel
Single internal door opening to kitchen space
Sliding doors for kitchen pantry
Internal french doors with sidelights

Most popular internal door styles

Innervision Internal Doors

Classic steel-framed doors perfect for creating open, light-filled spaces.

Innervision Sliding Doors

Space-saving sliding solutions ideal for modern, flexible interiors.

Innervision Fire Rated Doors

Stylish fire-resistant doors combining safety and Crittall aesthetics.

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Perfect for Every Room in Your Home

Living rooms & open-plan spaces

Slim-framed doors define a dining area or snug without blocking sightlines, while 22mm sightlines maximise glass and daylight.

Home offices & workspace separation

Steel-framed glass doors give privacy for calls, with frosted or reeded glazing keeping conversations discreet without feeling shut away.

Bedrooms & walk-in wardrobes

Sliding or hinged configurations turn ensuites and wardrobes into design features without adding visual weight.

Hallways & light distribution

Glazed doors carry light from adjacent rooms, brightening corridors and linking spaces together.

steel black internal doors
Internal french doors with sidelights

Customer Testimonial

“Installing Crittall internal doors transformed our open-plan living area. The sleek industrial style design and quality craftsmanship have added a touch of elegance while maintaining a sense of openness. We couldn’t be happier with the result!”

– Sarah Thompson, Homeowner in London

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Crittall Heritage: A Legacy of Excellence

Crittall’s British heritage and links to Art Deco architecture inform today’s internal steel doors, each handcrafted from galvanised steel with precision welding and backed by a reputation for craftsmanship and timeless design.

Built to Last: Durability & Low Maintenance

Steel internal doors outperform timber: they do not warp, crack or need regular repainting or staining. Protective powder-coated surfaces and sealed frames deliver decades of reliable service—simply wipe with a damp cloth to keep them pristine—making Crittall internal doors a smart long-term investment.

Ready to Transform Your Interior?

Explore how Crittall internal steel doors can redefine your space—browse our gallery, review finishes or request a design consultation so we create internal doors that match your vision.

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Internal steel doors

Your Crittall® Buying Journey

Our buying guide walks you through the effortless steps to incorporating timeless Crittall products into your project, from initial inquiry to receiving your custom-made steel windows and doors.

Step 1

Enquire with Us

Start your Crittall journey by contacting us. Simply fill out our contact form and expect a response within 24 hours.

Step 2

Understanding Your Requirements

Our team will discuss your project to understand your needs and recommend the perfect Crittall supplier based on your location and requirements.

Step 3

Get Your Quote

We'll connect you with your local Crittall approved installer who will provide a personalised quote for your Crittall project.

Step 4

Purchase

Once you've reviewed your quote and confirmed your order, your custom-made Crittall windows and doors will be crafted especially for you.

Frequently Asked Questions

We understand you may have queries about our products and services. We’ve answered some of the most common questions below.

Are Crittall Windows' internal doors customisable?

Yes. You can create the perfect internal doors for your property or project by choosing from a range of personalisation options including colour, hardware , glazing, and accessories.

Steel versus wooden doors?

Steel is more durable, resists warping and moisture and can last 20+ years with minimal upkeep.

How much do internal doors cost?

The price of new steel internal doors will be dependent on your specific project requirements. For more information get in touch with our team of experts today.

Are Crittall Windows' internal doors high maintenance?

Not at all. Our internal doors are finished in a high quality Duralife polyester powder coat which ensures a quality finish for many years to come.

What are the benefits of internal doors manufactured by Crittall Windows?

Internal doors from Crittall provide you with the design flexibility to effortlessly partition or divide any living space. They also boast a premium aesthetic, and are low maintenance, energy efficient and highly secure.

What property types are internal doors suitable for?

Our internal doors are suitable for a range of properties including heritage buildings and new-builds, as well as for upgrading existing buildings.

Why Crittall Internal Doors Stand Out

  • 170+ years of metalworking expertise since 1849
  • Ultra-slim steel frames maximizing natural light
  • Customizable designs for residential and commercial spaces
  • Durable Duralife powder coat finish for low maintenance
  • Energy-efficient construction for better climate control
  • Advanced security features for peace of mind
  • Suitable for both heritage restorations and contemporary projects

Can’t find the answer you’re looking for?

Speak to an Expert
Trio of french doors for London home

Start your Crittall journey

Transform your home by finding your local Crittall approved installer. Our specialist partners offer a stress-free service from enquiry to after-sales support.






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    Customer Reviews

    Take a look at some of our customer reviews to see how Crittall windows and doors have transformed real-world spaces. Customer reviews offer valuable insights beyond aesthetics, providing details on installation experiences, long-term performance, and the overall impact Crittall's windows and doors had on their projects.

    The Crittall design meant we could retain a traditional feel which would fit with the overall look of the house.

    KAREN WELSTEAD

    Scotland, UK

    All of our visitors comment on our stunning doors and we all love the beautiful shadows in the kitchen created by the frames – its like a cobweb of shadows!

    HANNAH

    SW London, UK

    ‘Nothing shouts 1930’s elegance like original Crittall windows … We feel as though we are on the set of a Poirot shoot when we walk inside’

    HARRY & VIC

    Lake District, UK

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