For Builders, Architects & Homeowners

Glass Internal Doors

Open up the house without losing the rooms

Our slim aluminium internal glass doors give you the best of both worlds: a connected, open-plan feel when you want it, and a quiet, closed-off room when you do not. Bifold, sliding, or pivot - plus the classic Critall-style gridlook with astragal bars for a period or industrial aesthetic. Fitted or supplied, always made to measure.

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Slim profile
Maximum glass, minimum frame - clean architectural lines.
Internal bifold or sliding
Stack flat when open, silent when closed.
Critall-style grid option
Classic heritage/industrial grid with astragal bars.
Acoustic glass option
Separate home office from family noise.
Free, No-Obligation
Get Your Free Quote Today
Prefer to chat? Call 0330 043 6212 or WhatsApp +44 7538 781235.
Your details
Full name *
Phone Number *
Email *
Postcode *
First line of address *
Your choices - pick one per row
Home owner or builder / installer?
Home owner
Home Owner Builder / Installer
Supply only or supply & fit?
Supply only
Supply & fit
Double glazed or triple glazed?
Double
triple
Property - residential or commercial?
Residential
Commercial
Aluminium or uPVC?
Aluminium
uPVC
Colour & thermal preferences
RAL colour preference (frames)
Handle & hinge colour
Minimum U-value required (W/m²K)
Tick any that apply - we will factor them into the quote
Book a free site visit
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Why our internal glass doors win on every count
Unlike external doors, internal glass doors do not have a Part L requirement - but that is where cheaper products cut corners. Thin profiles flex, cheap hinges drop over time, and light-weight glass sings when slammed. Our aluminium internal glass doors use the same 58 mm frame, the same stainless-steel running gear, and the same concealed 3D hinges as our external ranges - because your internal doors get used ten times a day, every day, for the next 25 years.
Want to separate a home office for Zoom calls? Specify acoustic 6.8 mm laminated glass. Want industrial Critall look? Add the astragal bar grid. Want true luxury? Pivot doors up to 1.2 m wide that close with a soft-close damper. Your home - your rules.
Why choose us
Engineered for the UK - homeowners, builders and installers
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Bifold, sliding or pivot
Internal bifold 2 to 6 leaves, sliding pocket, or dramatic pivot.
2
Slim aluminium
Same premium frame as our external ranges - no flex.
3
Critall grid option
Astragal bars for the industrial/heritage look.
4
Acoustic glass
Laminated 6.8 mm for home-office peace and quiet.
5
Soft-close dampers
No slammed doors, no angry children.
6
Floor-track or top-hung
Top-hung sliding for a clean floor line - no trip hazards.
7
Any RAL colour
Matt black, anthracite, white, dual-colour - no surcharge.
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Custom sizes
Up to 3 m tall, up to 6 m wide - any geometry.
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10-year guarantee
Frames, hardware and gaskets - engineered for daily use.
Real photography
Internal glass doors inside real UK homes
Interior-only photography of internal glass doors fitted between kitchens, snugs, home offices and hallways. Summer-day lighting shows exactly how the doors move light around the house.
Interior-only photography - slim aluminium frames disappear against the wall so light flows from room to room.
Critall-style internal bifold with bonded astragal bars - the hottest interior trend of the last five years, delivered in aluminium.
Same premium stainless-steel running gear and concealed 3D hinges as our external ranges - built for daily use, for decades.
Buyer's guide - internal glass doors that change how your home feels
Internal glass doors are one of the smartest upgrades a homeowner can make. They create light where there was none. They divide rooms when you need quiet, and they vanish when you need open space. This guide explains the three main types, the glass options, and the finishing details that make or break the look.
Bifold, sliding or pivot - which is right for your room?
A bifold internal door folds back on itself and stacks to the side. It is the obvious choice for a kitchen-to-dining-room divide or a kitchen-to-snug. A sliding door moves sideways on a top-hung track and disappears either into a wall pocket or in front of a wall. It suits tight spaces where a bifold would block circulation. A pivot door is a single large panel that rotates around a central pivot. It is dramatic, grand, and suits a hallway-to-lounge or any feature opening. We fabricate all three.
How wide can internal doors go?
Our internal bifolds go up to 6 m wide across 2 to 6 leaves. Sliding doors can span 4 m per leaf and can stack two or three leaves to span 8 m or more. Pivot doors can be up to 1.2 m wide on a single leaf and up to 3 m tall. If you have an unusual room shape, send us a sketch.
Top-hung or floor-track?
Top-hung is our default for internal doors. The entire weight hangs from a steel top track and the floor stays clear. No trip hazard, no carpet break, no dirt trap. The floor track on a bottom-rolling door is cheaper but you will find yourself vacuuming it weekly.
Acoustic glass for home working
If the room on the other side of the door is a home office, specify acoustic 6.8 mm laminated glass. It is a laminated sandwich of two sheets of glass with a sound-damping interlayer. You can be in a Zoom call with the kids screaming next door and barely hear them. It is the most-requested upgrade we sell to home workers.
Critall-style grid for the industrial look
A Critall-style door has an astragal bar grid splitting the glass into small rectangles. The look is drawn from 1920s industrial steel windows and it is the hottest interior trend of the last five years. We offer it on all internal bifolds, sliders and pivots. Jet Black frames with a Critall grid in a new-build is the classic spec.
Frameless or framed?
Our default is a framed aluminium system - clean but with a slim edge visible. For pivot doors we also offer a frameless toughened-glass option where the glass is the whole panel with a tiny hinge at the pivot points. Frameless looks stunning but is harder to make draught-proof, so we only recommend it on internal doors well inside the thermal envelope.
Colours and finishes
Internal doors look best in a colour that complements your wall and your flooring. Jet Black is the hero colour for Critall. Anthracite suits grey and taupe interiors. Matt White disappears against white walls. Brushed Bronze works beautifully against timber floors. We offer any RAL colour - send a photo of your floor and wall samples and we will recommend.
Soft-close and slow-close
Specify the soft-close damper option and the door slows in the last 100 mm of travel, coming to rest gently instead of slamming. A small upgrade that saves a lot of arguments in a busy house.
Installation
Internal glass doors are a half-day to one-day fit depending on size. Our team arrives, measures the opening, drops the track in, hangs the leaves, glazes them, tests the running and adjusts the dampers. You will be using the door the same evening.
Costs and lead time
Internal glass doors are usually priced per leaf rather than per m². A 3-leaf internal bifold in a standard kitchen opening starts around £2,500 supply-only, more for pivot and heavily-specified acoustic. Lead time is 3 to 5 weeks from order.
Book your quote
Use the form above. Tell us which room you want to divide and attach a phone photo on WhatsApp - tap the green upload button in the form or scan the QR code. We come back within 24 hours with a quote and a couple of layout suggestions.
See it in action
Internal glass bifold in a kitchen-snug divide
Watch a 4-leaf internal bifold disappear into the wall in under 4 seconds - opening up the kitchen to the snug when guests arrive, closing it off when the kids are in bed.
BOOK A DEMO AT YOUR PROJECT
Projects
Recent installations
A small selection of recent work. Ask for our full portfolio on your site visit.
Kitchen-snug divide, Edgbaston
4-leaf internal bifold, Jet Black with heritage bars
Home office, Harborne
Sliding pocket door with acoustic glass, Anthracite
Hallway feature, Sutton
Pivot door, 2.4 m tall, Brushed Bronze
Dining room, Solihull
Critall-style grid, 3-leaf fold, Jet Black
Studio flat, Birmingham
Internal bifold separating sleeping and living areas
Country home, Warwickshire
Heritage-bar internal sliding door, Heritage Green
Your builder can fit them - or we will
Supply-only to trade (trade pricing, full technical pack) or a white-glove install by our in-house team. Your choice at checkout.
GET My Quote
What clients say
Trusted by homeowners & builders across the UK
"We fitted an internal bifold between the kitchen and snug. Open = huge family space. Closed = quiet movie room. Genius."
Laura B.
Homeowner, Edgbaston
"Specified GWS internal glass doors on four recent projects. They make a modest-sized house feel twice as big - and the Critall-grid option is the current darling of my clients."
Tom L.
Architect, West Midlands
"My home office needed to be quiet during Zoom calls but I hated the solid door shutting me off from the family. The acoustic-glass slider is perfect - light, silence, connection."
Dev M.
Homeowner, Harborne
Heritage style option
Love the astragal grid? See the full Heritage range
If you are picking an internal door because of the Critall-style bars, you will love our full Heritage Windows collection. Same slim aluminium frame, same bonded astragal-bar detail, but designed for the outside of the house - a way to carry the heritage grid across every elevation of your home. Full Heritage Windows come in Georgian, Victorian, Critall, astragal and bespoke bar layouts. Listed-building-ready, Part L compliant, 25-year life. Browse the complete range below.
See Heritage Windows
Quote heritage style
Handles, Hinges & Locks
Premium hardware, colour-matched to every frame
Each door and window is finished with market-leading hardware — multi-point locking, TS007 3-star anti-snap cylinders, stainless-steel running gear, concealed hinges, and a full range of lever, pull and key-operated handles. Hover any handle to see it enlarge. Mix and match to suit your home or project.
Lever - Anthracite
Smooth ergonomic lever in Anthracite Grey (RAL 7016M) - our most-specified door handle.
Lever - Matt Black
Matt Black lever for contemporary, architectural looks. Pairs with any frame colour.
Lever - White
Bright White lever for classic, clean interiors and traditional homes.
Lever - Polished Chrome
Polished Chrome lever - a timeless shine that suits modern and classic doors alike.
Lever - Satin Silver
Satin Silver lever for a soft brushed finish that hides fingerprints.
Lever - Brushed Gold
Brushed Gold lever for a warm, premium statement. Gorgeous with Anthracite frames.
Quadra - Anthracite
Square-edge contemporary lever in Anthracite Grey - clean architectural lines.
Quadra - Matte Black
Matte Black square-edge lever - the ultimate modern door handle.
Quadra - Matte White
Matte White square-edge lever - fresh, bright, contemporary.
Quadra - Polished Chrome
Polished Chrome square-edge lever for a mirror finish that lifts any door.
Quadra - Satin Silver
Satin Silver square-edge - subtle brushed sheen, easy care.
Quadra - Brushed Gold
Brushed Gold square-edge lever - on-trend warm metal tone.
Window - Anthracite
Espagnolette window handle in Anthracite Grey. Key-lockable option.
Window - Black
Black inline window handle - sleek and timeless. Child-safety key option.
Window - White
White window handle for traditional and modern casements alike.
Window - Polished Chrome
Polished Chrome window handle - a classic finish for any room.
Window - Satin Silver
Satin Silver window handle - a calm, practical, brushed finish.
Window - Brushed Gold
Brushed Gold window handle - a beautiful accent on heritage windows.
Lift & Turn - White
White lift-and-turn handle - simple, strong, classic.
Lift & Turn - Chrome
Chrome lift-and-turn handle - glossy, durable, easy clean.
Lift & Turn - Satin Silver
Satin Silver lift-and-turn handle - brushed finish for a modern look.
Lift & Turn - Brushed Gold
Brushed Gold lift-and-turn handle - a warm luxury statement.
Lift & Turn - Anthracite
Heavy-duty lift-and-turn handle for patio sliders and bifold traffic leaves.
Lift & Turn - Black
Black lift-and-turn handle - gym-grade multi-point gearing.
Lift & Turn - White
Lift & Turn - Chrome
Lift & Turn - Satin Silver
Lift & Turn - Brushed Gold
Rondo keyed handle
Child-safe keyed window handle - ideal for upstairs bedrooms and rentals.
Pull handle suite
Matching pull handle and escutcheon for entrance doors - bold or minimalist.
Concealed 3D hinges
Hidden when closed — adjustable in three planes for a perfect reveal for life.
Multi-point locking
Anti-snap TS007 3-star cylinders, hook bolts and deadlocks on every door as standard.
Colour Range
Over 200 colours — powder-coated, textured & gloss
Hover over any swatch to see its RAL code. We finish every frame to order — matt, gloss, metallic or textured. Can't see your shade? Any RAL is available.
Anthracite Grey
RAL 7016M
Deep Black
RAL 9005T
HIPCA White
RAL 9910HG
Pastel Green
RAL 7016M
Agate Grey
R7038.31
Jet Black
RAL 9005M
Slate Grey
RAL 7015
Basalt Grey
RAL 7012
Light Grey
RAL 7035
Silver Grey
RAL 7001
Fir Green
RAL 6009
Moss Green
RAL 6005
Chocolate Brown
RAL 8017
Oxide Red
RAL 3009
Sapphire Blue
RAL 5003
Steel Blue
RAL 5011
Cream
RAL 9001
Sand Beige
RAL 1011
Anthracite Textured
RAL 7016 Matt T
Jet Black Textured
RAL 9005 T
Brushed Silver (Tex)
DB 701 T
Pewter (Textured)
RAL 7037 T
Brushed Bronze
DB 703 T
Olive Bronze
DB 604 T
Gold Metallic
AY 1050
Brushed Aluminium
AY 2050
Graphite Pearl
AY 900 M
Any RAL or BS colour available to order — just ask. Dual-colour (different inside / outside) supported on all ranges.
Explore the Range
More ways we transform homes & builds
Bifold Doors
Slim aluminium bifolds with huge glass spans.
Front & Panel Doors
PAS 24 secure, Part L ready entrance doors.
Aluminium Windows
Flat-flush modern windows in any RAL.
Heritage Windows
Astragal-bar period looks, modern performance.
Glass Internal Doors
Open up your kitchen, snug or office.
Conservatory Roof Replacement
Make it a room you actually use all year.
Kitchen Extensions
Full-build rear extensions with trusted partners
Blogs & Guides
Everything you need to know before you buy.
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Glazed Window Systems
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We specialise in premium glazed doors and windows, combining modern design with lasting durability to enhance residential and commercial spaces across the UK. Crafted with precision and built to perform, our products bring light, style, and value to every project.
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Glazed Window Systems Limited
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