GLS Serving Window
GLS Serving Window
Upgrade your business or home with a serving window. Designed for convenience, efficiency, and durability, our serving windows provide a seamless connection between indoor and outdoor spaces.
Weatherproof Design
Thermal Efficiency
Security Protected
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mm x mm
1. Width: Measure horizontally across the opening from edge to edge at the top, middle, and bottom. Use the smallest measurement.
2. Height: Measure vertically from top to bottom on the left, center, and right sides. Use the smallest measurement.
Bifold
1. Width: Measure horizontally across the opening from edge to edge at the top, middle, and bottom. Use the smallest measurement.
2. Height: Measure vertically from top to bottom on the left, center, and right sides. Use the smallest measurement.
Black
1. Width: Measure horizontally across the opening from edge to edge at the top, middle, and bottom. Use the smallest measurement.
2. Height: Measure vertically from top to bottom on the left, center, and right sides. Use the smallest measurement.
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Overview
Unique Folding System
If you’re looking to make the most of the space in your or your customer’s home, aluminium bifold doors are a perfect solution. These folding doors utilise minimal space, leaving more available space in the room you are elevating.
Slimline Aluminium Framing
Aluminium bifold doors have characteristically slim framing, making the most of the glass portion of their design. This creates a truly modern aesthetic, turning your bifold aluminium doors into a major feature.
Large Glazing Area
Make the most of your projects interior with aluminium bifold doors large glass panels, letting large amounts of light enter. With folding doors, you’ll maximise the available space. Leaving plenty of room for your innovative design ideas!
Customer Customisation
We’ll make your aluminium bifold doors to your exact specifications. By tailoring our concertina doors to your size, colour scheme, finish, and accessory requirements, we’ll provide a truly bespoke product.
Opening Configurations
You can choose how many door panes are included in your aluminium bifold doors. We provide options for up to 4 door panes for our concertina doors, allowing you or your customers to choose.
Low Threshold Option
If you want to make a home much more accessible, a low threshold aluminium bifold door is a great choice. It’ll allow your concertina doors to be far easier to access for wheelchair users.

Bifold Serving Window
Concertina doors are designed to maximize space within your or your customer’s home, and this is reflected in their design. Folding windows take up very little space, folding in on themselves when open. This allows you to make the most of every inch of floor space your project has.
Aluminium bifold windows also make a seamless transition between the interior and exterior of your project’s space. You can open them wide in the summer, your aluminium folding doors granting excellent levels of ventilation. In summer, this could be a lifesaver, keeping your customer’s space cool and comfortable.

Sliding Serving Window
Sliding serving windows allow for maximum glass surface area and can open up the window area by as much as 66% using 3 panes. We can even make them as pocket windows so you can open up 100% of the area. This will bring the most of your creative vision, creating a well lit and spacious interior. Sliding windows are designed for maximum aesthetic quality.

Gas Strut Serving Windows
Gas strut windows, also known as gas strut serving windows or gas lift windows, are a type of awning-style window that opens outward and upward with the assistance of gas struts. These struts provide smooth and controlled operation, allowing the window to remain open at a fixed position without additional support.
Technical specifications
Configurations
Bifold
Sliding
Gas
Sightlines
Bifold = 110mm
Sliding = As low as 15mm
Gas = As low as 20mm
Glazing
Min. 24 MM, Max. 44 MM
Maximum Sash Weight
120KG

Colour Finishes
Available from Glideline
Powder Coating RAL Finish
Standard 7016M and 9005M, 9016G
Available in 150+ RAL finishes
Textured finish available
Split color for interior/exterior
Anodized aluminium
Class 15; 15-19 micrometer coating for external use as standard
Class 20; 20-24 micrometer coating for use in aggressive conditions, industrial areas and marine pollution
Class 20; 20-24 micrometer coating for use in aggressive conditions, industrial Silver brushed, silver rough brushed, bright silver, matte silver, brushed steel, rough brushed steel, brushed champagne re-polished, bright gold, rough brushed inox re-polished, brushed stainless steel, rough brushed ivory re-polished, brushed bronze, rough brushed bronze and re-polished, rough brushed copper re-polished, rough brushed Bordeaux re-polished, rough brushed green, rough brushed blue re-polished, rough brushed grey re-polished, matte black and marine pollution
Wood effect powder coating
Available in pine, oak, cherry wood, sapele, African walnut, walnut, chestnut and white wood
Reviews
Thank you to the installers Joe and Luke for their hard work. It wasn't easy going up all the stairs but they were happy doing so and I couldn't be happier with the doors. Also Henry has been fantastic from sta…
Glideline installed 6 sets of sliding doors in our house. This was a major investment for us so we wanted it to be just right. David and all the team were friendly and helpful from start to finish. Henry was…
FAQs
What’s the maximum glazing thickness?
With our serving windows, you can have a glazing thickness of as much as 44mm. This will help to provide the best levels of thermal efficiency and security for your customer’s home.
Will they suit traditional homes?
Serving windows are versatile in any application. They’ll look perfect in modern properties, but also traditional homes, with wood finishes giving them a more heritage aesthetic.
How weatherproof are they?
Through rigorous testing, we have ensured that our concertina doors are fully weather protected. They’ve been tested against air permeability, water tightness and wind resistance.
If we haven’t answered your question, Send us a message