The Heritage
Heritage and listed property renovations · Luxury homes · Period apartments and lofts · Boutique hotels · Bespoke shower enclosures · Architectural projects requiring matched internal and external heritage steel
Key details
- 1920s heritage aesthetic, authentically recreated in steel
- Designed to match the Heritage W40 external system
- Ultra-slim heritage sightlines
- Maximum door height 3000mm · partition heights to 4000mm
- Suitable for high-humidity environments including shower enclosures
- Clear and decorative glass options available
- Bespoke handles, glazing bar layouts and full RAL colour selection
- Individually engineered drawings produced for every project
Available as
Some things were right the first time
There is a particular quality to steel from the 1920s — the proportions, the weight of the frame, the way light sits differently against a heritage sightline than a contemporary one. It’s not something you can approximate. You either commit to it or you don’t.
The Heritage W20 commits fully. Inspired by the iconic steel glazing of the early twentieth century and developed to match the Heritage W40 external system, it brings genuine period character to internal spaces without sacrificing the precision or durability that a modern project demands. The result is a door, partition or shower enclosure that feels entirely of its era — and entirely at home in a building that was built in it.
Ultra-slim sightlines, authentic steel detailing and bespoke glazing bar configurations give every installation its own quiet authority. Door heights to 3000mm and partition heights to 4000mm make it as suited to grand architectural gestures as it is to a considered single-room renovation.
Every system is manufactured to order, with individually engineered technical drawings produced for each project.
Internal door collections
Three families.
Every door type.
Internal – original profile
Internal steel doors & partitions
Twenty millimetres of steel frame. Everything else is glass, light and space. The Foundry is our original slim internal profile — hand-welded, precisely crafted, and designed to let a room breathe.
Internal – ultra-slim
Internal steel doors & partitions
Ultra-slim sightlines from 13mm. A profile inspired by Art Deco precision and classic industrial glazing — made for interiors where the frame should almost disappear.
Internal – maximum light
Internal steel doors & screens
The look of premium fire-rated steel glazing — without the fire-rated price. The Lumière delivers the same refined heritage appearance as the Lumière Sentinel E30, at approximately 35% less. For projects where consistency matters as much as budget.
Internal – maximum light
Internal steel doors, partitions & shower enclosures
The character of 1920s steel glazing, faithfully recreated for interiors. Designed to match the Heritage W40 external system — for projects where authenticity matters as much as architecture.
Internal – maximum light
Internal steel doors & partitions · New
A premium slim steel profile designed to move seamlessly from outside to in. The internal counterpart to the Signature External — same sightlines, same character, complete architectural continuity.
Describe your space. We'll take it from there.
Get your quote — no pressure, just expert advice.
EXTERNAL DOORS & WINDOWS
The Threshold collection.
Outside, redefined.
External
Ottostumm · External steel windows & doors
Hot-rolled steel with the strength and character that cold-formed profiles can’t replicate. The Heritage is built for the projects where authentic industrial architecture isn’t an aesthetic choice — it’s the only acceptable answer.
External
Thermally enhanced steel entrance doors
The same refined proportions as the Signature Internal — engineered for the outside. Thermally enhanced, weather-tested and designed to perform as well as it looks at the entrance to a building.
External
Thermally broken external steel windows & doors
The look of premium fire-rated steel glazing — without the fire-rated price. The Lumière delivers the same refined heritage appearance as the Lumière Sentinel E30, at approximately 35% less. For projects where consistency matters as much as budget.
External
TB PRO · Thermally broken steel doors & windows · external
Thermally broken steel at a more accessible price point. The Forge Pro brings reliable insulation, smooth operation and the quiet integrity of steel to projects where performance matters but budget is part of the conversation.
External
Thermally broken external steel windows & doors
PAS 24 certified security. Acoustic performance to 45dB. U-values to 1.2 W/m²K. Ultra-slim sightlines. The Artesa is the system for projects where every performance metric matters — and so does how it looks.
Come in with a floor plan, a question, or just a feeling. We'll start from there.
1 Courtenay Road
East Lane Business Park
Wembley
LONDON
HA9 7ND
FIRE-RATED RESIDENTIAL
The Sentinel range
Protected without compromise
Fire-rated
E30 fire-rated steel doors · Internal & external
Certified fire protection without the compromise. The Sentinel delivers E30 to E120 fire resistance, acoustic performance up to 44dB and genuine steel durability — for residential and commercial projects where performance is the brief.
Fire-rated
E30 · Internal fire-rated steel doors & screens · New
E30 certified. Heritage proportions. Designed to be indistinguishable from its non-fire-rated twin. The Lumière Sentinel exists so that fire protection never has to look like fire protection.
Fire-rated
E30 · Internal fire-rated steel doors & screens
Slim, decorative and E30 certified. The Primo brings heritage glazing bar character to fire-rated steel — for interiors where protection is required but the door still has to earn its place in the room.
Fire-rated
EI30 · Internal fire-rated steel doors · New
EI30 certified — fire integrity and thermal insulation combined. The Resilience meets current UK Building Regulations for fire protection, without compromising the architectural quality of the door itself.
