Itchen Glass & Glazing
Bi-Folding Windows
Opens fully for a seamless indoor-outdoor connection, a popular choice for kitchens, garden rooms and orangeries.
- Slim aluminium sightlines
- 2 to 7 panels, opening in or out
- Made to measure & fitted by our own team
Bi-Folding Windows in Southampton & Hampshire
Bi-folding windows stack neatly to one side, opening the entire width of the window through to a garden, patio or breakfast bar. They’re especially popular as a servery hatch between a kitchen and outdoor dining area, or anywhere you want an unbroken connection to the outside, across homes and commercial premises in Southampton and Hampshire.
Built on Sheerline’s aluminium bi-folding system, made to measure and fitted by our own team, with a smooth-running roller track and small magnets to hold each pane in place once opened.
What you get with Itchen
Maximum Light
Ultra-slim aluminium sightlines and a larger glazed area let in noticeably more natural light than a standard window.
Space-Saving Operation
Panels stack neatly to one side when open, so there’s no swinging sash to work around.
Flexible Configuration
Choose from 2 to 7 panels, opening in or out, tailored to your exact dimensions.
Thermally Efficient
Sheerline’s Thermlock® core reduces heat transfer through the aluminium frame.
Sheerline Aluminium Systems
Sheerline Aluminium Systems
Our aluminium ranges are built on Sheerline systems, winner of the King’s Award for Innovation 2025 for its aluminium window and door range.
- 01 Thermlock® multi-chamber thermal core, independently U-value tested for genuine thermal performance.
- 02 Slim, architectural aluminium frames available in a full RAL colour range, including dual-colour finishes.
- 03 Security-tested ranges, with PAS 24 and optional Secured by Design upgrades available.
- 04 Backed by a 25-year manufacturer guarantee.
Bi-Folding Window Specification
Built on Sheerline’s Prestige and Index bi-folding systems, the same aluminium hardware used across our bi-fold doors.
- U-Value
- From 1.4 W/m²K double glazed, or 1.0 W/m²K triple glazed.
- Sightlines
- A slim 138mm sash-to-sash sightline for maximum glass area.
- Security
- PAS24 accredited, with small magnets holding each pane securely once opened.
- Panel Configuration
- 2 to 7 panels, opening in or out, tailored to your exact opening.
Figures are for Sheerline’s Prestige bi-fold system as published at sheerline.com .
Bi-Folding Window Colours and Finishes
Bespoke RAL colours and dual-colour finishes are also available, so get in touch with our team for the full range, or see Sheerline’s complete colour and style options at sheerline.com .
Bi-Folding Window FAQs
How do bi-folding windows operate?
Just like a bi-fold door, the panels run smoothly along a roller track, and small magnets hold each pane securely in place once it’s open.
How many panels do I need?
Every bi-fold window is tailored to your exact opening, with a choice of between 2 and 7 panels depending on the width.
Can I colour match my bi-fold window to my other windows?
Yes — the Sheerline system can be colour matched to the rest of your aluminium windows and doors for a seamless look across the property.
Interested in Bi-Folding Windows?
Request your free, no-obligation quote today.