
Alitherm 700
The Alitherm 700 series offers an innovative solution for enhanced natural ventilation.
About West Yorkshire Glazing
As a known industry leader, we’re used to working with all types of customers - local or global, large or small. Exceptional quality is the foundation of our company, and is the driving force behind all decisions; whether it’s which materials to purchase or the best way to serve our customers.
Today, West Yorkshire Glazing is one of the leaders in the industry - and we wouldn’t be where we are today without the amazing work our team does every single day. We’re incredibly proud of each team member, and are consistently impressed by their creativity and drive.

Aluminium Casement Window Systems
About West Yorkshire Glazing
As a known industry leader, we’re used to working with all types of customers - local or global, large or small. Exceptional quality is the foundation of our company, and is the driving force behind all decisions; whether it’s which materials to purchase or the best way to serve our customers.
Today, West Yorkshire Glazing is one of the leaders in the industry - and we wouldn’t be where we are today without the amazing work our team does every single day. We’re incredibly proud of each team member, and are consistently impressed by their creativity and drive.
About West Yorkshire Glazing
As a known industry leader, we’re used to working with all types of customers - local or global, large or small. Exceptional quality is the foundation of our company, and is the driving force behind all decisions; whether it’s which materials to purchase or the best way to serve our customers.
Today, West Yorkshire Glazing is one of the leaders in the industry - and we wouldn’t be where we are today without the amazing work our team does every single day. We’re incredibly proud of each team member, and are consistently impressed by their creativity and drive.
West Yorkshire Glazing Aluminium Bi Folding Doors
Do you want to bring the outside in and open up your home with more space and natural light?
External bifold doors are ideal, make a real design statement and offer great flexibility. They are available in a range of materials, configurations, glazing and finishes to suit any project.
Security
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Concealed electro-magnetic lock
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Key-lockable master door leaf
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Toughened glass as standard
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Locking at bottom rail
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Locking at head
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Option to lock inside and out
Configuration
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Bespoke designs available
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Toughened glass as standard
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Soft coat low E glass as standard
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Argon gas as standard
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Solar control glass optional
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Laminated glass optional
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Choice of handles
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Wide choice of colours and finishes
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Comprehensive range of other glass options
Sizes & Weights
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Maximum panel width 1200mm
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Maximum height 2500mm
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Maximum panel weight 100kg
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Maximum opening width over 15m
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Frame Depth 70mm
Thermal Performance
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Fully thermally-broken system
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1.5W/m²K using 1.0 W/m²K centre pane
Why choose Aluminium Bi Folding Doors?
Slim Sightlines
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Slimmer sight-lines create the effect of larger glass areas, which is important to homeowners who want to enjoy views of their garden.
Performance
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Our aluminium bi-folds have a polyamide thermal break which allows for U values up to 1.4 (building regulations standard is 1.8). We also fit high quality gaskets and weather brushes to aid weather resistance, and offer A rated glazing as standard.
Quality
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Our bi- folds are fabricated using the Smart Visofold 1000 profile, a market leader renowned for it’s durability and build quality.
Choice
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Not only do we offer a wide choice of opening styles, but there are also a wealth of colour options available. We can provide over 240 bespoke RAL (dual colours also available), and also offer a range of glass options including sliding integral blinds.
Get a Quote
Interested in discussing your grand design or to learn more about our product range? Simply reach out today or come along to our showroom.
8B Sapper Jordan Rossi Park, Baildon, Bradford BD17 7AX, UK
01274 590105