Steel Doors | Totally Steel Doors

B20 Steel & Glass Door Profile Minimalist Design. Maximum Impact.

The B20 profile is our slimmest and most refined steel door system, designed for projects where clean lines, light flow, and contemporary aesthetics are paramount. Crafted with precision and finished to the highest standards, B20 steel and glass doors deliver a striking balance of elegance, strength, and performance.

Perfect for modern homes, high-end renovations, and commercial interiors, the B20 profile offers a sleek architectural solution without compromising durability or functionality.

Ultra-Slim Sightlines

With a 20mm visible frame, the B20 profile is designed to maximise glass and minimise steel. The result is a light, open feel that enhances natural daylight while maintaining the iconic industrial look of steel-framed doors.

Whether used as internal partitions or statement doors, the B20 profile creates seamless transitions between spaces.

Made to Measure Steel Doors

Every B20 steel and glass door from Totally Steel Doors is bespoke manufactured to your exact specifications. From single and double doors to fixed screens and full-height installations, each design is tailored to suit your space.

Available configurations include:

Single swing doors
Double steel doors
Fixed glazed panels
Internal partitions
Door and screen combinations

Premium Materials
& Craftsmanship

Our B20 doors are fabricated using high-quality steel and toughened safety glass, ensuring exceptional strength with a refined finish. Each door is hand-welded, ground smooth, and professionally powder-coated for a flawless appearance.

Standard features include:

Slim 20mm steel profile
Toughened clear, reeded, or fluted glass options
Precision welding and detailing
Durable powder-coated finish in any RAL colour

Designed for Modern Living

The B20 profile is ideal for interiors where subtlety and sophistication matter. Its understated frame works beautifully in both residential and commercial environments, complementing modern, industrial, and minimalist design schemes.

Common applications include:

Kitchens and dining spaces
Living room dividers
Home offices
Apartments and loft conversions
Commercial offices and studios

Expert Installation Across the UK

From design consultation to final installation, our experienced team ensures every B20 steel door is fitted with precision and care. We work closely with homeowners, architects, and interior designers to deliver outstanding results nationwide.

Why Choose the B20 Profile?

✔ Ultra-slim 20mm sightlines

✔ Bespoke, made-to-measure design

✔ Premium steel and glass construction

✔ Ideal for contemporary interiors

✔ Expert UK manufacture and installation

Start Your B20 Steel Door Project

If you’re looking for a sleek, modern steel and glass door solution,
the B20 profile offers the perfect combination of style and performance.

Contact Totally Steel Doors today on 020 3649 6080
to discuss your project, request a quotation, or arrange a design consultation.

More Information

The B20 profile is a slim steel and glass door system with a 20mm visible frame. It is designed for internal use where minimal sightlines and a clean, contemporary look are required.

Yes. All B20 doors are bespoke and made to measure. Each door or screen is manufactured to suit your exact opening sizes and layout.

The B20 profile can be used for:

Single internal steel doors
Double steel and glass doors
Fixed glazed panels
Internal screens and partitions
Combined door and screen layouts

B20 doors are supplied with toughened safety glass as standard. Available glass options include:

Clear
Reeded
Fluted
Satin / obscure

Yes. All B20 frames are powder coated and available in any RAL colour. Matt, satin, and textured finishes are available.

Yes. The B20 profile is suitable for both residential interiors and commercial spaces, including offices, studios, and apartments.

Yes. We provide professional installation across the UK, ensuring each door is accurately fitted and finished.

To provide a quotation, we typically require:

Approximate opening sizes
Preferred configuration (door, screen, or combination)
Glass type
Frame colour or finish

Drawings, plans, or photos can also be helpful.

Why London Homeowners Are Replacing Wood Doors with Steel: The Complete Guide (2025)

If you’re considering new doors for your London home, you’ve probably noticed something: steel doors are everywhere. From Chelsea townhouses to Shoreditch lofts, sleek black steel frames are replacing traditional timber at a remarkable rate. But is this just a trend, or is there something more substantial driving this shift?As steel door specialists working across London for years, we’ve had hundreds of conversations with homeowners making this exact decision.
Here’s what we’ve learned — and why so many are choosing steel over wood.

The Question Everyone Asks:
"Should I Choose Steel or Wood?"

It’s a fair question. Wood doors have been the default choice in British homes for centuries. They’re familiar. They’re traditional. And there’s undeniable beauty in a well-crafted timber door.

But here’s the truth: the comparison isn’t really about aesthetics anymore. It’s about how you want to live in your home for the next 20 years. Let me explain.

What Steel Doors Actually Deliver (That Wood Cannot)

Light. Glorious, Unobstructed Light.

London properties are often tight on space and natural light. Steel doors solve this with ultra-slim frames — as thin as 20mm — while maintaining exceptional strength.

The result? Floor-to-ceiling glass panels that flood your home with daylight, without the chunky frames that timber requires for structural integrity.

We’ve transformed countless dark Victorian kitchens and gloomy ground-floor extensions simply by replacing bulky woo

Zero Maintenance (And We Mean Zero)

Here’s what maintaining wood doors actually looks like:

Annual re-staining or repainting (£200-400 if you hire someone)
Regular checks for rot, especially around the base
Treating swelling when doors stick in humid weather
Resealing to prevent water damage
Eventually, full replacement when degradation accelerates

Steel doors? Wash them with soapy water twice a year. That’s it. No annual treatments. No panic about missed maintenance. No gradual deterioration. For busy Londoners, this isn’t a minor benefit — it’s life-changing.

Performance That Doesn't Degrade

Wood is organic. It breathes, swells, contracts, and ages. Sometimes beautifully, often problematically.

In London’s damp, variable climate, timber doors are fighting a losing battle against the elements:

They warp in humidity
They stick in summer when wood expands
They let in draughts in winter when wood contracts
They develop gaps in their seals
Weather exposure gradually breaks down finishes

Steel doors maintain their shape, seal, and performance indefinitely. The door we install today operates exactly the same way in 20 years.

Security You Can Actually Trust

This matters more than most people realise. Traditional wood doors — even solid hardwood — can be compromised with the right tools and enough time.

Steel doors are engineered differently:

Multi-point locking systems as standard
Reinforced frames that resist forced entry
Toughened safety glass that won’t shatter easily
No weak points where hinges attach

Insurance companies understand this. Many offer lower premiums for properties with steel doors because they’re genuinely harder to breach.

Energy Efficiency That Actually Works

Modern steel doors feature polyurethane foam cores that deliver exceptional insulation — often achieving U-values better than the best timber alternatives.

But here’s the critical difference: steel doors maintain that performance. Wood’s insulating properties degrade as seals fail, gaps develop, and the material ages.

With London’s energy costs and increasingly stringent Building Regulations, this isn’t academic — it directly impacts your heating bills and comfort.

The Honest Truth About Wood Doors

We don’t sell wood doors, but we’re not going to pretend they don’t have appeal.
Let’s be honest about their advantages:

Authentic period character

In certain conservation areas or listed buildings, timber might be required or simply more appropriate aesthetically.

Traditional
warmth

There’s something organic and inviting about natural wood grain that steel cannot replicate.

Refinishing
options

Wood can be sanded, restrained, and completely transformed if you tire of the finish.

Artisan craftsmanship

Intricate carvings and traditional joinery techniques work beautifully in timber.

But here’s the key question: do these benefits outweigh the maintenance burden, performance limitations, and durability concerns? For the vast majority of London homeowners we work with, the answer is no.

Why The Shift Is Happening Now?

Ten years ago, steel doors were primarily commercial or industrial. They were functional, not beautiful.

That’s changed completely. Modern steel door design has evolved to deliver both performance and aesthetics:

Powder-coated finishes in dozens of colours (including finishes that mimic aged bronze or brass)
Ultra-slim profiles that feel contemporary and luxurious
Bespoke sizing that fits any opening perfectly
Integration with smart locks and home automation

The result is doors that perform like commercial-grade products but look entirely residential — and increasingly, aspirational

What Our Clients Tell Us After Making The Switch

Here are the most common things we hear from homeowners who’ve replaced wood with steel:

“I can’t believe how much lighter the room feels.”
Slim steel frames with maximum glass transform spaces.

“I haven’t thought about my doors once in two years.”
That’s exactly the point. They just work.

“The house feels more secure.”
Psychological, perhaps, but also objectively true.

“I’m annoyed we didn’t do this sooner.”
The maintenance relief is often more valuable than expected.

“Everyone asks where we got them.”
Good design gets noticed.

Understanding The Investment

Let’s address cost directly, because it matters.

Quality steel doors cost more upfront than basic wood alternatives. But this comparison is misleading because:

High-end hardwood doors (the kind you’d actually want long-term) cost similar amounts to steel
Maintenance costs accumulate significantly over a timber door’s lifetime
Replacement frequency means wood doors may need replacing multiple times over the lifespan of steel
Property value impact is substantial — steel doors add genuine market appeal in London

When you factor in 20-year total cost of ownership, steel often emerges as the more economical choice — while delivering superior performance throughout.

Common Concerns (And The Reality)

“Won’t steel doors look too industrial?”
Modern residential steel doors are designed specifically for homes. Slim profiles, careful proportioning, and quality finishes make them elegant, not industrial.

“What about rust?”
Quality steel doors use galvanised steel with powder-coated finishes. Rust simply isn’t an issue with proper specification.

“Can I get custom sizes?”
Absolutely. Bespoke sizing is standard — essential in London’s older properties where nothing is truly standard.

“What about planning permission?”
Most steel door installations don’t require planning permission, though conservation areas and listed buildings have specific requirements we can guide you through.

Making The Decision For Your Property

Here’s how to think about whether steel doors are right for your home.

Steel doors make perfect sense if:

You value your time and don’t want ongoing maintenance
Natural light is a priority
You’re creating a contemporary or industrial aesthetic
Security matters to you
You want doors that maintain performance indefinitely
You’re tired of wooden doors that stick, warp, or need constant attention

You might prefer timber if:

You’re in a conservation area with specific requirements
Your property is period and traditional character is paramount
You genuinely enjoy hands-on home maintenance
You’re legally restricted from using alternative materials

For most London homeowners, especially those with modern or renovated properties, steel delivers better value, performance, and long-term satisfaction.

What Happens Next

If you’re considering steel doors for your London property, here’s the typical journey:

Initial consultation: We discuss your project, take measurements, and understand your design vision.

Design development: We create detailed specifications showing exactly what your doors will look like in your space.

Manufacturing: Your doors are fabricated to precise specifications in our workshop.

Professional installation: Expert fitting ensures perfect operation and weather-sealing.

Long-term performance: Your doors simply work, year after year, with minimal intervention.

The entire process typically takes 8-12 weeks from first conversation to installation.

Steel doors aren’t a commodity purchase. The difference between a mediocre installation and an excellent one is enormous — affecting everything from thermal performance to how smoothly your doors operate decades from now.

Working with specialists who focus exclusively on steel and glass doors means:

Deep material expertise and understanding of how steel performs
Experience with London properties and their specific challenges
Precise manufacturing and installation that ensures long-term performance
After-sales support when you need adjustments or advice

You’re not just buying doors. You’re buying decades of reliable performance.

Why Work With Specialists

Ready To Transform Your Space?

If you’re tired of maintaining wood doors, frustrated with poor performance, or simply want to flood your home with natural light, let’s talk. We’ll visit your property, understand your specific requirements, and show you exactly what’s possible. No pressure, no hard sell — just honest expertise and beautiful solutions.

Because the best door isn’t about trends or fashion. It’s about finding the solution that makes your life better for the next twenty years.

About Totally Steel Doors

We design and install bespoke steel and glass doors for homes across London. From ultra-slim sliding doors to contemporary entrances, we combine British craftsmanship with modern engineering to deliver doors that genuinely improve how you live. Based in London, serving London homeowners who demand both performance and beauty.

Fast. Simple. Accurate

Transform Your Home With Our New Online Configurator

Want to make sure you’re getting the best possible price for your project?
Check it instantly with our online configurator — just click below!

Why Black Steel & Glass Internal Doors Are More Popular Than Ever

Why Black Metal and Glass Doors Are the New Interior Design Essential

If you’ve spent any time browsing interior design inspiration on Instagram, Pinterest, or home renovation shows, you’ll have noticed one trend dominating the scene: black metal/steel and glass internal doors. These elegant, contemporary doors have gone from industrial-chic niche to mainstream favourite—and for good reason.

At Totally Steel Doors, we’ve seen a huge rise in demand for these stunning internal steel doors, and here’s why homeowners, designers, and architects can’t get enough of them.

1. They Bring In Natural Light

Traditional solid doors often make rooms feel smaller or darker. Steel-framed glass doors allow light to flow freely between spaces – opening up the home without removing walls. It’s the perfect way to make interiors feel fresh, bright, and more connected.

2. Sleek, Minimalist Style

Black-framed glass doors deliver a strong visual statement without being overwhelming. Their slim steel frames create a clean, modern aesthetic that pairs beautifully with:

Contemporary interiors
Classic homes (for contrast)
Loft-style industrial spaces
Scandinavian and minimalist décor

They’re versatile enough to look timeless rather than trendy.

3. They Create Zones — Without Closing Off Space

Open-plan living is still popular, but more people now want the ability to:

Reduce noise
Create privacy
Define “rooms” within open spaces

Glass internal doors are the ideal solution —they zone space while maintaining the open look.

Perfect for:

Home offices
Kitchen-dividers
Hallways
Living/dining split areas

4. Industrial Style Is Still Going Strong

Steel and glass doors originally came from urban warehouse conversions, where metal finishes and exposed materials were part of the charm. That industrial look is still hugely popular in modern design—and black internal steel doors are one of the key elements.

5. They Work With Almost Any Colour Palette

Whether your home has warm neutrals, deep dramatic tones, or clean white walls—black steel doors fit right in. They act almost like a picture frame, grounding the space without clashing.

Especially striking in:

Heritage homes with modern updates
Converted barn and warehouse spaces
New builds needing character
Luxury interiors

6. They’re Strong, Slim & Built to Last

Unlike aluminium or timber alternatives, genuine steel offers:

Superior structural strength
Thinner sightlines
A high-end finish
Longevity and durability

Quality steel doors don’t warp, crack, or swell—and require very little maintenance.

7. Customisable for Any Space

Whether it’s a single internal door, double doors, pivot doors or entire screens—black steel and glass can be made bespoke to fit:

Tall ceilings
Wide openings
Unusual room layouts

With choices in:

Clear glass
Reeded / fluted glass
Frosted privacy glass
Single or multi-panel designs

8. They Add Real Value & Luxury Appeal

This isn’t just a trend—it’s become a new design standard. Steel and glass internal doors are widely viewed as a premium feature in homes.

They add:

Style that lasts
Architectural detail
Resale appeal

Buyers notice them — and remember them.

Ready to Elevate Your Space?

At Totally Steel Doors, we specialise in custom-made black internal steel and glass doors built to exact specifications. Whether you’re renovating a single room or designing a whole home, we can help you achieve the look.

✔ Bespoke sizes
✔ Multiple glazing options
✔ Beautiful slim steel frames
✔ Made to measure
✔ Nationwide delivery & installation available

Browse our product range, request a quote, or contact our team to discuss your project.

Black steel and glass internal doors aren’t just popular — they’re here to stay.
Timeless, stylish, and practical, they’re the perfect finishing touch for modern living

Want to make sure you’re getting the best possible price for your project?
Check it instantly with our online configurator — just click below!

How to Maximise Your Home’s Value and Style with Bespoke Steel & Glass Doors (Plus: Our New Referral Rewards)

Elevate Your Space with Bespoke Steel & Glass Doors

When planning a renovation or new build, the right doors set the tone for your entire property. At Totally Steel Doors, we design, manufacture, and install custom steel and glass doors that deliver on both style and substance.

Why Choose Steel & Glass?

Modern, Minimalist Aesthetics
Slim steel frames and clear glass panels create a contemporary look, making any space feel open and light-filled.
Maximise Natural Light
Our doors are engineered to let in more daylight, brightening interiors and creating a sense of spaciousness.
Durable & Secure
Robust steel construction ensures longevity and security, with fire-rated options available.
Tailored to You
Choose from seven unique profile systems, multiple finishes, and custom sizing—all included in the price.

What Sets Us Apart

15+ years’ experience in interior steel glazing
Six-week turnaround from order to installation
Supply-only or full installation service
Strict quality control and personal, expert guidance

See the Difference

Our bespoke doors have transformed homes across London, Kent, Surrey, Essex, and beyond—adding value, style, and practical benefits for homeowners, architects, and developers.

Ready to Transform Your Property?

Browse our product range, request a quote, or contact our team to discuss your project.

www.TotallySteelDoors.co.uk — where quality, style, and service come together.

Steel vs. Aluminium Doors: Which Is Best for Your Project?

When it comes to choosing the perfect doors for your home or business, two materials often stand out: steel and aluminium. Both offer unique advantages, but which is right for your project? Here’s a clear, expert breakdown to help you decide.

Strength & Durability

Steel Doors: Known for their superior strength, steel doors are exceptionally durable and secure. They resist warping, dents, and daily wear, making them ideal for high-traffic areas and added security.

Aluminium Doors: Lightweight and corrosion-resistant, aluminium doors are a popular choice for modern aesthetics. However, they’re generally less robust than steel and may dent more easily.

Design & Customisation

Steel Doors: Totally Steel Doors specialises in slimline steel frames with bespoke sizing and a choice of finishes (black, white, bronze, and more). Steel’s versatility allows for larger glass panels, maximising natural light and creating a striking architectural feature.

Aluminium Doors: Aluminium can also be customised, but typically offers fewer options for ultra-slim profiles and large-scale glass partitions.

Insulation & Energy Efficiency

Steel Doors: Modern steel doors feature advanced insulation, helping to keep interiors comfortable year-round. The solid construction reduces drafts and noise.

Aluminium Doors: While aluminium frames can be thermally broken for better efficiency, they often don’t match steel’s insulating power.

Security

Steel Doors: The inherent strength of steel provides excellent protection against forced entry—a top choice for both residential and commercial security.

Aluminium Doors: Secure when fitted with quality locks, but not as robust as steel for high-security needs.

Aesthetic Appeal

Steel Doors: Loved for their timeless, industrial look and the ability to create dramatic, light-filled spaces.

Aluminium Doors: Sleek and modern, but may lack the bold presence and luxury feel of steel.

Conclusion

If you’re seeking maximum security, durability, and custom design flexibility, steel doors are hard to beat — especially with Totally Steel Doors’ bespoke service, premium materials, and 6-week turnaround. Aluminium doors are a strong contender for lighter, contemporary projects but may not offer the same level of strength or style impact.

Ready to transform your space?

Ultra-Slim Sightlines

Made to Measure Steel Doors

Premium Materials & Craftsmanship

Designed for Modern Living

Expert Installation Across the UK

Why Choose the B20 Profile?

More Information

What is the B20 steel door profile?

Are B20 steel and glass doors made to measure?

What door configurations are available with the B20 profile?

What glass options are available?

Can I choose the colour and finish of the steel frame?

Are B20 doors suitable for residential and commercial projects?

Do you supply and install B20 steel doors?

How do I get a quote for a B20 steel door?

The Question Everyone Asks: "Should I Choose Steel or Wood?"

What Steel Doors Actually Deliver (That Wood Cannot)

Light. Glorious, Unobstructed Light.

Zero Maintenance (And We Mean Zero)

Performance That Doesn't Degrade

Security You Can Actually Trust

Energy Efficiency That Actually Works

The Honest Truth About Wood Doors

Authentic period character

Traditional warmth

Refinishing options

Artisan craftsmanship

Why The Shift Is Happening Now?

What Our Clients Tell Us After Making The Switch

Understanding The Investment

Common Concerns (And The Reality)

Making The Decision For Your Property

What Happens Next

Why Work With Specialists

Ready To Transform Your Space?

About Totally Steel Doors

Why Black Metal and Glass Doors Are the New Interior Design Essential

1. They Bring In Natural Light

2. Sleek, Minimalist Style

3. They Create Zones — Without Closing Off Space

4. Industrial Style Is Still Going Strong

5. They Work With Almost Any Colour Palette

6. They’re Strong, Slim & Built to Last

7. Customisable for Any Space

8. They Add Real Value & Luxury Appeal

Ready to Elevate Your Space?

Elevate Your Space with Bespoke Steel & Glass Doors

Why Choose Steel & Glass?

What Sets Us Apart

See the Difference

Strength & Durability

Design & Customisation

Insulation & Energy Efficiency

Security

Aesthetic Appeal

Conclusion

Premium Materials
& Craftsmanship

The Question Everyone Asks:
"Should I Choose Steel or Wood?"

Traditional
warmth

Refinishing
options