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Steel replacement doors. Double and single-glazed

We supply and install steel replacement double-glazed and single-glazed doors throughout the UK, Exmouth, Exeter and surrounding East Devon.

Nothing lasts longer, has the original character or ultra slim sight lines than steel doors. Steel doors have been used for many centuries and are perfect for listed buildings and conservation areas. New double-glazed steel doors are widely accepted by local authorities for refurbishment and new build projects.

All steel replacement doors are hot dip galvanised prior to powder coating to ensure they do not rust and require little maintenance. A wide choice of colours are available (in any RAL colour). Galvanised finishes are also available.

Door sections (W20) are almost identical to those of many a year ago and offer the perfect like for like replacement, with added modern benefits. Benefits include double-glazing, draught excluders, 5 lever Mortice locks, not forgetting a maintenance free powder coated paint finish.

Request a quick quote

To enable us to provide an efficient service, please use our dedicated steel door, quick quote enquiry page.

Steel replacement door styles and designs manufactured to your requirements...

Replacement steel single doors

All doors are manufactured from extremely strong W20 steel profiles.

W20 steel doors can be manufactured to replicate the originals using the same steel sections.

W20 doors can be shaped, arched and curved with a range of glazing options such as solid steel Georgian bars or leaded lights.

Replacement steel French doors

W20 steel French doors

Replacement steel doors can open inward or outwards and incorporate projecting parliament hinges to fold back completely when opened.

With equal or odd leg steel sections, W20 doors can be installed into timber sub-frames or direct to masonry.

Steel doors incorporate a 5-lever Mortice lock and thumb turn bolts located at the top and bottom of each leaf providing additional security.

W20 profiles can be internally or externally glazed using powder coated glazing beads or a traditional putty finish.

W20 steel door technical and sections

Click to enlarge

W20 door & screens - Typical outer frame dimensions

We provide full working drawings tailored to your order for you to check and approve, prior to passing into production.

Working drawings detail cill, opening configuration, design and manufacture sizes helping you visualise exactly how your doors will look.


Are W20 steel doors thermally broken? - No, the W20 system does not have a thermal break, though highly effiecient 16mm Krypton filled double-glazed units help combat condensation.

How wide can you make a W20 steel single door? - The maximum width of a single door including frame is 900mm. We can manufacture oversized doors, but would not offer a warranty.

How wide can you make W20 French doors? - The maximum width of a double opening French door including frame is 1800mm. We can manufacture oversized doors, but would not offer a warranty.

How tall can you make the doors? - Doors can be manuactured up to 2400mm in height. Any door over this height would require a glazed light above.

Are the doors single or double-glazed? - We can provide single or double-glazed doors for internal or external use.

What is the U-Value of your double-glazed doors? - Overall U-Values vary depending upon door size and style. The centre pane U-Value of our double-glazed units is 1.1 Wm2K. The centre pane method is used for building regulations compliance for new build and replacement applications.

Can your steel doors be fire rated? - We are able to supply fire rated glass and steel glazing studs. Though not specifically fire rated, it is possible to have our W20 steel doors approved by your local building control officer. Please check.

Our steel services

Life Expectancy

Suitable applications

Listed buildings
Conservation areas
Domestic & commercial use
Installation into stone mullions
Installation into timber sub-frames
Installation direct to masonry
New build or renovation

Supply only (UK coverage)
Supply and install (UK coverage)
Professional site surveys
Listed building applications
Full working drawings
Hardwood/softwood sub-frames (fully finished or primed)

Galvanised steel 50 years +
Polyester powder coating 20 years +
Silicone sealant 20 years +
Glazing gaskets 15 years +
Weather seals 15 years +
Sealed units 10 years +

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