Window & Sliding Systems 2026 — uPVC & Aluminium

Horizontal section · frame · sash · double-glazed unit

Glazing Options

Single 4–6 mm DGU 20–28 mm TGU 36–44 mm Laminated Low-E / Tinted

01 — Engineering

System Anatomy

What sits inside the frame — and why it performs.

A window is a system — profile, glass, seal and hardware, engineered as one. Fensterung builds to the system principle: every opening is the sum of a multi-chamber profile, a sealed glazing unit, layered gaskets and calibrated hardware — each component specified together so the finished window or door performs as a single engineered whole.

The result is fenestration that keeps heat and noise where they belong, resists Indian monsoons and coastal air, and still glides open with one hand. Available in low-maintenance uPVC and slim, thermally-broken aluminium.

System Components

5–7 air chambers in uPVC profiles

Galvanized steel / polyamide thermal break

Triple EPDM gasket seal lines

Argon-filled DGU / TGU units

Concealed sloped drainage

Warm-edge spacer technology

Profile	Multi-chamber uPVC or thermally-broken aluminium
Glazing	Single · DGU · TGU · laminated · Low-E / tinted
Seals	Triple continuous EPDM weather gaskets
Hardware	Multi-point espagnolette / hook / shoot-bolt locking
Drainage	Sloped concealed channels — water out, away from room

Two-light side-hung casement window to scale

Two-light side-hung casement · to scale

Configurations

Side-hung Awning Fixed Combo

02 — System Windows

Casement & Awning

Full-aperture ventilation, sealed shut on closing.

The casement is the workhorse of good ventilation — the sash swings clear of the frame, so the entire aperture opens to the breeze. On closing, a multi-point espagnolette draws the sash tight onto three gasket lines for a weather-sealed, secure shut.

Specify side-hung for walls, top-hung awning over kitchens and bathrooms (rain-open), and pair with fixed lights for picture-window combinations. Available in uPVC and slim aluminium.

Full-aperture ventilation

Multi-point espagnolette lock

Friction stays, hold-open

Triple EPDM weather seal

Concealed drainage

Integrated mosquito mesh option

Material	uPVC (multi-chamber) or thermally-broken aluminium
System Depth	60 – 70 mm
Glazing	Single / DGU / TGU, up to 40 mm
Max Sash Size	Approx. 1200 × 1500 mm per sash
U-Value	1.8 – 2.8 W/m²K (with DGU)
Acoustic	Up to 38 dB reduction (laminated DGU)
Applications	Bedrooms, living, kitchens, bathrooms

2-track sliding window · to scale

Track Configurations

2-track / 2-panel 3-track / 3-panel 2T + mesh

03 — System Windows

Sliding Windows

Wide views, zero swing — ventilation that saves space.

Where a swinging sash would foul furniture, a balcony rail or an AC unit, the sliding window earns its place — sashes glide on tandem rollers along the frame, opening half the aperture without projecting an inch into the room or the weather.

Interlocking meeting rails, anti-lift blocks and a multi-point lock keep the system secure and rattle-free; an integrated track carries a mosquito mesh shutter alongside.

Zero-swing, space-saving

Tandem roller carriages

Interlock & anti-lift

Integrated mesh track

Multi-point hook lock

Large widths achievable

Material	uPVC or thermally-broken aluminium
System Depth	60 – 100 mm (2 / 3 track)
Configurations	2-track / 2-panel · 3-track / 3-panel · with mesh
Max Panel	Approx. 1500 × 2100 mm per panel
U-Value	2.2 – 3.0 W/m²K (with DGU)
Applications	Balconies, living rooms, narrow walls

Dual-action tilt & turn sash · to scale

One Handle, Three Positions

Tilt — vent Turn — open Lock — secure

04 — System Windows

Tilt & Turn

Two windows in one — tilt to breathe, turn to open.

The tilt & turn is the European benchmark for performance windows. One handle, three positions: turn it once and the sash tilts inward at the top for secure, draught-free ventilation; turn it again and the whole sash swings in like a door for cleaning and full airflow.

Inward opening keeps the sash off external walls and within reach on high floors, while a perimeter multi-point lock and premium hardware deliver class-leading security and seal.

Tilt for secure ventilation

Turn for full open & cleaning

Single-handle operation

Perimeter multi-point lock

Inward opening, high-floor safe

Premium European hardware

Material	uPVC or thermally-broken aluminium
System Depth	70 – 80 mm
Glazing	DGU / TGU, up to 44 mm
Max Sash Size	Approx. 1300 × 2400 mm
U-Value	1.4 – 2.4 W/m²K (DGU / TGU)
Acoustic	Up to 42 dB reduction
Applications	Premium homes, high-rise, acoustic zones

3-track sliding door · to scale

Configurations

2-panel 3-panel + mesh shutter

05 — Sliding Doors

uPVC Sliding Doors

The everyday slider — tall, sealed, effortless.

The uPVC sliding door connects living rooms to balconies, decks and gardens with a tall glazed panel that slides aside on tandem stainless rollers — heavy panels move with a fingertip, and the threshold stays low and clean.

An interlocking central rail, anti-lift blocks and a multi-point hook lock secure the closed door; a triple gasket line keeps monsoon rain and street noise outside. Mesh shutters slide on an added track for bug-free ventilation.

Tall panels, fingertip glide

Tandem stainless rollers

Interlock & anti-lift

Multi-point hook lock

Triple weather seal

Mesh shutter option

Material	Multi-chamber uPVC, steel-reinforced
System Depth	80 – 120 mm (2.5 / 3 track)
Max Panel	Approx. 1800 × 2700 mm per panel
U-Value	1.8 – 2.8 W/m²K (with DGU)
Applications	Balconies, terraces, garden & deck access

2-panel lift-&-slide · slim interlock · to scale

Panel Layouts

2-panel (OX) 3-panel (OXX) Pocket / 4-panel

06 — Sliding Doors

Slim-Slider & Lift-&-Slide

Minimal sightlines, wall-sized glass, heavy panels made light.

When the brief is a wall of glass, slim aluminium answers. Thermally-broken profiles carry large double or triple-glazed panels on interlocks just millimetres wide, so the view — not the frame — fills the opening.

Lift-&-slide gear is the difference-maker: turn the handle and the heavy panel lifts off its seals onto rollers, gliding effortlessly, then lowers to compress the gaskets for a weather-tight, secure close. Flush thresholds give a seamless inside-to-out floor.

Minimal interlock sightlines

Lift-&-slide hardware

Heavy panels, light glide

Flush / low threshold

Thermal-break insulation

Large & pocket configurations

Material	Thermally-broken aluminium (polyamide break)
System Depth	120 – 200 mm (track-dependent)
Interlock Sightline	From approx. 20 – 35 mm
Max Panel	Up to approx. 3000 mm high · 400 kg+ per panel
Applications	Villas, penthouses, garden rooms, façades

4-leaf slide-&-fold · to scale

Leaf & Stacking

2 leaves 4 leaves 6 – 7 leaves

07 — Sliding Doors

Bi-Fold Doors

Fold a whole wall away — inside meets outside.

Where a slider opens half a wall, the bi-fold opens nearly all of it. Leaves are hinged in pairs and run on a top track; pull the lead door and the panels concertina back, stacking neatly to one or both sides to throw the room open to a terrace or courtyard.

Built in thermally-broken aluminium with multi-point shoot-bolt locking and a continuous gasket line, the bi-fold closes down to a weather-tight, secure wall of glass when the season turns.

Opens almost the full span

2 – 7 leaves, stack either side

Top-hung running gear

Multi-point shoot-bolt lock

Traffic-door option

Weather-tight gasket line

Material	Thermally-broken aluminium
System Depth	70 – 100 mm
Leaves	2 to 7 · stack left, right or split
Max Leaf	Approx. 1000 × 2700 mm per leaf
Threshold	Standard, low or flush (rebated)
Applications	Living-to-garden, cafés, courtyards, verandas

Finishes · Performance · Enquiry

Specified Together, Finished to Match

uPVC in white, solid colours & wood-grain foils; aluminium powder-coated to RAL, anodized or wood-finish. Swatches indicative — physical samples on request.

Traffic White

Cream

Silver

Dusty Grey

Anthracite

Jet Black

Reseda Green

Golden Oak

Walnut

Teak

Performance at a Glance

Measure	uPVC	Aluminium
Thermal U-value (W/m²K)	1.4 – 2.8	1.6 – 3.0
Acoustic reduction	Up to 42 dB	Up to 45 dB
Max span (sliding)	Moderate	Very large
Maintenance	Very low	Low
Sightlines	Standard	Slim
Best for	Value & insulation	Scale & aesthetics

Figures are typical system ranges and vary with profile, glazing & configuration; project values confirmed at quotation.

Light, framed with precision.
Air, on command.

System Anatomy

Casement & Awning

Sliding Windows

Tilt & Turn

uPVC Sliding Doors

Lift-&-Slide

Slide & Fold

Finishes & Enquiry

System Anatomy

Casement & Awning

Sliding Windows

Tilt & Turn

uPVC Sliding Doors

Slim-Slider & Lift-&-Slide

Bi-Fold Doors

Specified Together, Finished to Match

Performance at a Glance

From Opening to Installed

Send Openings

Choose System & Glazing

Site Survey & Quote

Fabricate & Install

Light, framed with precision.Air, on command.

System Anatomy

Casement & Awning

Sliding Windows

Tilt & Turn

uPVC Sliding Doors

Lift-&-Slide

Slide & Fold

Finishes & Enquiry

System Anatomy

Casement & Awning

Sliding Windows

Tilt & Turn

uPVC Sliding Doors

Slim-Slider & Lift-&-Slide

Bi-Fold Doors

Specified Together, Finished to Match

Performance at a Glance

From Opening to Installed

Send Openings

Choose System & Glazing

Site Survey & Quote

Fabricate & Install

Light, framed with precision.
Air, on command.