How Much Are Internal Steel Doors? (2026 UK Price Guide)

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Alex Morton

Alex Morton is the Managing Director and founder of Manchester Window Factory. With 30 years’ experience in windows and doors and a BA (Hons) in English and Linguistics from The University of Manchester, he shares practical, no-nonsense guidance to help homeowners make confident decisions about their homes.

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Internal steel doors have become one of the most sought-after home improvements in the UK. With their slim sightlines, industrial styling and ability to let natural light flow through your home, they’re a popular choice for renovations, extensions and modern upgrades.

But the big question homeowners ask is:

How much are internal steel doors?

At Manchester Window Factory, prices typically start from:

  • £2,000 for a single internal steel door
  • £4,000 for internal steel French doors

However, the final cost can vary depending on several important factors. Below, we break everything down so you know exactly what affects the price.

Average Cost of Internal Steel Doors in the UK

While prices vary between suppliers and specifications, most homeowners can expect:

Door Type

Typical Starting Price

Single Internal Steel Door

From £2,000

Double / French Steel Doors

From £4,000

Fixed Screens with Door

From £3,000+

Bespoke Configurations

£5,000+

These prices usually include manufacturing and installation, but specifications make a significant difference.

What Affects the Price of Internal Steel Doors?

1. Size & Configuration

The larger the opening, the more material and structural reinforcement is required.

  • Standard single door = lower cost
  • Double / French doors = higher cost
  • Full wall glazing systems = premium pricing

If your opening is non-standard, bespoke manufacturing will increase costs.

2. Bespoke vs Standard Design

Steel doors are rarely “off the shelf.” Most are made to measure.

Custom elements that affect price include:

  • Number of glazing panels (grid design)
  • Slimline vs standard frames
  • Custom dimensions
  • Overpanels or side screens

The more intricate the design, the higher the cost.

3. Glass Specification

Glass plays a major role in pricing.

Options include:

  • Clear toughened safety glass (standard)
  • Reeded or fluted glass
  • Tinted glass
  • Acoustic glass
  • Fire-rated glass

Specialist glass can increase the overall price considerably.

4. Powder Coating & Colour Choice

Most internal steel doors are finished in matte black, but you can choose:

  • Custom RAL colours
  • Textured finishes
  • Metallic finishes

Premium finishes increase manufacturing time and cost.

5. Installation Requirements

Installation complexity also affects pricing:

  • Structural alterations
  • Plasterwork repairs
  • Floor finishing adjustments
  • Removing existing doors or walls

A straightforward installation keeps costs down, while structural changes increase labour time.

Are Internal Steel Doors Worth the Investment?

Although internal steel doors cost more than timber or aluminium alternatives, they offer:

  • Timeless industrial design
  • Increased natural light
  • Durability and strength
  • Increased property value
  • Slim, elegant sightlines

Many homeowners see them as a long-term investment that transforms the feel of their space.

Steel vs Aluminium Internal Doors – Price Comparison

Some homeowners consider aluminium alternatives.

While aluminium doors can be cheaper, true steel doors offer:

  • Slimmer profiles
  • Greater strength
  • Premium feel
  • Longer lifespan

If you’re looking for authentic industrial style, steel remains the premium choice.

Why Choose Manchester Window Factory?

At Manchester Window Factory, we manufacture and install bespoke internal steel doors across Greater Manchester and surrounding areas.

When you choose us, you get:

  • Made-to-measure doors
  • Professional installation
  • Expert design advice
  • Competitive pricing
  • High-quality finishes

We work closely with homeowners, builders and architects to deliver doors that fit perfectly and look stunning.

Get a Quote for Internal Steel Doors

Because every project is different, the best way to get an accurate price is to request a tailored quotation.

If you’re considering:

  • A single internal steel door (from £2,000)
  • French steel doors (from £4,000)
  • Or a bespoke glazed steel system

Contact Manchester Window Factory today for a free consultation and quote.

How to Get in Touch

To request a free brochure, you can call us on 0161 976 4739, use our contact form or chat with us via the chat button at the bottom right of this website. If you live locally, you can also visit our Altrincham showroom, and check our contacts page for up-to-date opening hours.

We look forward to hearing from you!

Frequently Asked Questions

Prices typically start from £4,000 but vary depending on size and glass specification.


Yes, steel doors are a premium product and cost more than timber alternatives, but they offer superior durability and aesthetics.

Yes, they are considered a high-end feature and can increase desirability and resale value.

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