Slim black-framed internal glazed doors — the Origin OI-30 Crittall-style range. Single, French, fixed screens and room dividers.
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2,000+
Homes fitted since 2016
FENSA
Registered installer
10-Year Guarantee
Product + workmanship, insurance-backed
Made in Britain
Designed and built in the UK
Honest Quoting
No commission, no pressure, no surprises
FENSA Registered
Every install fully certified
About internal doors
Internal Crittall-style doors give you the heritage black-framed glazed look as a modern internal door. Separate a kitchen-diner, snug or home office while the glass keeps daylight and a sense of space flowing through the whole floor. We fit the Origin OI-30 Internal Door Collection — single and French doors, fixed screens, corner configurations and full room dividers, in any RAL colour with jet black the most popular.
Slim jet-black (or any RAL colour) aluminium frames with classic gridded glazing bars — the heritage Crittall aesthetic, engineered as a modern thermally efficient internal door.
Separate a kitchen-diner, snug or home office while glass keeps the daylight and the sense of space flowing through. Privacy where you want it, openness everywhere else.
Single doors, double French doors, fixed screens, corner setups and full room dividers — made to your exact opening. Add fixed flags above or alongside to fill the height and width.
The Origin OI-30 is built to the same engineering standard as Origin’s external range, with a long manufacturer guarantee. Fitted by our own team, never subcontractors.
The OI-30 range
The everyday statement opening
Origin OI-30 Internal Door Collection
A single OI-30 door is ideal for opening up a hallway, study or utility while keeping the light. Double French doors make a real statement between a kitchen and living space — open or shut. Both in slim aluminium with the classic gridded Crittall glazing, in any RAL colour.
Define the space, keep it open
Origin OI-30 Internal Door Collection
Add fixed screens above or alongside a door to fill a wide or tall opening, turn a corner with a corner post, or run a full glazed room divider across an open-plan space. Used as a standalone fixed screen where no access is needed. This is one we fitted locally — a real Custom Choice install.
Configurations
The right configuration depends on the opening, how the rooms are used, and how much you want to see through. We’ll spec the right setup at survey.
One slim glazed door in an opening — ideal for a study, utility or to close off a hallway while keeping the light flowing through.
A double-door opening that makes a statement between two rooms, open or shut. The most popular choice between a kitchen and a living space.
Fixed screens fill extra height or width, corner posts turn the glazing around a corner, and a full divider zones an open-plan space — with or without an opening door.
10-Year Guarantee
Product + workmanship, insurance-backed
Made in Britain
Designed and built in the UK
Honest Quoting
No commission, no pressure, no surprises
FENSA Registered
Every install fully certified
Common questions
Slim black-framed glazed internal doors with classic gridded glazing bars — the heritage “Crittall” look, made in modern thermally broken aluminium. We fit the Origin OI-30 Internal Door Collection: single doors, French doors, fixed screens, corner setups and full room dividers.
The opposite — because the doors and screens are glazed, they zone a space (a kitchen-diner, snug or home office) while letting daylight pass right through. You get privacy and definition without losing the open, light feel.
Single doors, double French doors, fixed screens above or beside the door, corner configurations with a corner post, and full glazed room dividers — all made to your exact opening. We’ll spec the right setup at survey.
It depends on the configuration, the size of the opening and the finish you choose. Get in touch with your project details and we’ll give you an accurate estimate.
Yes — the OI-30 is engineered to the same standard as Origin’s external range, with a long manufacturer guarantee on top of our 10-year workmanship cover. Every job is fitted by our own team, never subcontractors.
Most internal door or screen installs are completed in a day, sometimes two for larger room dividers or corner setups. We commit to dates in writing.
Real installs, real reviews
From contemporary new builds in Cambridge to rear extensions in Peterborough, here's what homeowners say about working with us on their sliding door projects.
Required new composite front and back door. Visited my home and provided information of the product, very friendly and personable with a no pressure sales technique. Competitive quote provided and fitting date locked in. Fitter arrived first thing in the morning.
The process was very quick and straight forward. Love my door and it is very smooth to unlock. Great value and helpful staff.
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