Specification support
The junction you detailed is the junction we fabricate. We advise on the product route that meets the sightline, performance and finish you have specified, without value-engineering surprises.
Architects and specifiers
Drawing-led answers for specification.
Specification-led product selection and drawing-led answers for windows, doors, curtain walling and internal glazed screens. Send the detail you have drawn and we confirm a product route that holds it, with the documentation to back it.
Before fabrication, we review the selected route against the drawing and identify the current product evidence and documentation that the project requires. No web page is a blanket certification promise.
Fabricated in Haydock, St HelensTrade-only supply from our own workshop.
Project-specific standards reviewRelevant requirements are checked against the selected product and intended use.
Evidence before relianceRequest current route-specific documents before relying on any performance or marking claim.
Performance requirements
Thermal, security, weather and acoustic targets are reviewed for the actual opening, glazing, hardware and exposure. A generic website value is never a project guarantee.
Documentation
Ask for the current evidence relevant to the selected route before fabrication, ordering or relying on a claimed performance. Installation and final sign-off remain with the responsible project parties.
Specification reference
The figures behind the figures
Every performance number on this site traces to a standard and a tested configuration. These set out which standard, what it measures, and what the class is tied to, so a value can be specified rather than assumed.
- How big can aluminium doors and windows go?What a leaf can actually span before the system stops you.
- Aluminium U-Values ExplainedWhich U-value you are specifying, and what it is measured across.
- Aluminium window and door weather ratings explainedAir, water and wind classes, and the size each one was achieved at.
- PAS 24 security explained for aluminium doors and windowsWhat the enhanced-security test proves, and what it does not.
- What is EN 13830 curtain walling?The product standard for non-loadbearing framing.
- Acoustic aluminium windows: how Rw ratings workHow Rw is reached, and where laminated or asymmetric glazing earns it.
Per-product tested performance, including the mock-up size each class was achieved at, is on the product pages.
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