Aluminium system
AluK
Mainstream to architectural, used in both residential and commercial fenestration.
Overview
About AluK
AluK is a familiar name in UK aluminium fenestration and works across both the domestic and commercial sides of the market.
For homeowners that breadth is useful: the same systems logic that serves commercial buildings tends to be robust on a house.
Ownership: Aluminium systems company with a long-established UK presence.
Systems / Ranges
Ranges within this system
Aluminium windows
Residential window systems.
Doors
Entrance, bifold and sliding options depending on the range.
Appearance
External and internal appearance
Contemporary aluminium sightlines shared across residential and commercial ranges, giving a slim, architectural look.
Window / door types
Products available in this system
- Aluminium windows
- Entrance doors
- Bifold and sliding doors depending on the range
Colour options
Colour and finish
Standard powder-coated RAL colour ranges typical of aluminium systems; confirm the current swatch options with your installer.
Glazing capability
What it can glaze
Designed to carry standard and large sealed units; exact maximum pane size depends on the specific range quoted.
Thermal performance
Thermal performance
A thermally broken aluminium system. We do not quote a specific U-value here — ask your installer for the whole-window figure that applies to your quotation.
Security
Security
Multi-point locking is standard on residential ranges. Confirm any specific security standard on the installer's own paperwork.
Best suited to
Typical applications
- Modern replacement windows
- Mixed residential and commercial projects
Things to consider
Strengths and things to consider
Strengths
- Long UK presence with good technical support
- Residential and commercial capability
- Wide fabricator availability
Things to consider
- Range naming can be confusing — always confirm the exact system quoted
- Aluminium pricing sits above PVC-U
Before you sign
Questions to ask an installer
- 01Which AluK system and range is quoted?
- 02What colour finish and warranty apply to it?
The Glazora view
Dependable aluminium. Compare the specific range against the specific range on any rival quotation, not brand against brand.
See how AluK compares directly against another system, or get a quotation based on your own property.
Source / last verified
Where this information comes from
Source: Manufacturer published system literature and trade/fabricator-facing brochures in general circulation.
Last verified: Structure reviewed February 2025 — figures below are qualitative pending direct manufacturer confirmation.
Still needs verification against manufacturer literature:
- Sightline and frame depth figures
- Maximum pane sizes
- Any specific U-value
- Threshold options