Windows
Steel windows
Slim welded grids for design-led and heritage briefs - thermally broken where the opening is heated externally.
Explore steel windows →Steel & Crittall-style
Steel windows and doors - real steel, thermally broken and Crittall-style
Cold architectural steel, thermally broken externals, insulated entrances and slim internal screens are different products. The quote names the system and whether the opening is heated, internal or unheated.
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Start with the use
Steel and Crittall-style routes compared
Crittall-style describes a look - the specification must still name the actual system and thermal route.
Windows
Crittall-style guide
How steel-look aluminium and heritage-bar uPVC compare to genuine steel for sightlines and budget.
Read Crittall-style guide →
Doors
Steel entrance doors
Insulated steel entrances where security and architectural character matter together.
Explore steel entrances →
Doors
External steel doors
Thermally broken external steel door sets for heated openings - specified with glass and hardware.
Explore external steel →
Interiors
Internal screens and doors
Room dividers and internal glazed doors - often cold steel suitable for unheated or interior use.
Explore internal steel →
Compare
Real steel vs steel-look
Sightlines, thermal performance, maintenance and budget - compared on named systems.
Compare steel and look-alike →Steel prices follow the system and use
No single per-square-metre headline covers welded steel, look-alike aluminium and heritage-bar uPVC.
External thermally broken steel, internal cold steel and steel-look aluminium are quoted on drawings, sizes and finish - not from a generic online calculator.
See the steel price guide for guide bands once your route is shortlisted, then request an itemised written quote.
Steel price guide →
Which steel route suits the opening?
Survey confirms structure, thermal break requirement and compliant specification.
| Route | Often suits | Check first |
|---|---|---|
| Thermally broken external steel | Heated external windows and doors | U-value route, glazing and sightline target |
| Cold / interior steel | Room dividers and unheated spaces | Condensation risk if used on heated elevations |
| Steel-look aluminium | Slim grids with lower maintenance | Joint detail vs genuine welded steel |
| Heritage-bar uPVC | Traditional appearance on a uPVC budget | Grid width and joint authenticity |
Steel glazing FAQs
Steel questions
Common steel and Crittall-style questions.
Steel FAQs.
01Do you supply Crittall?
We supply independent steel and alternative systems. We do not claim affiliation with Crittall Windows Ltd - the quote names the actual manufacturer and system.
02Can cold steel go on an external wall?
Only where the use and building physics allow. Heated external openings normally need a thermally broken route - survey and specification confirm.
03When is steel-look aluminium enough?
When maintenance, budget and sightline targets suit aluminium profiles. Compare joints and grid proportions on the written quote, not from marketing images alone.
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