BUYER KNOWLEDGE CENTRE

Technical guidance
for better window packages.

Practical notes for developers, contractors, façade partners and distributors reviewing project windows and doors.

PROCUREMENT-FIRST CONTENT

Start with the buyer question.

Align window types, quantities, glass, hardware, finishes and interfaces before supplier pricing.

A practical factory-evaluation method for buyers who need more than a polished catalogue and a fast quotation.

A plain-language guide to thermal breaks, whole-window values, glass and the evidence behind a performance claim.

Compare aluminum and uPVC by opening size, repetition, climate, finish, interfaces and delivery—not generic material claims.

A project buyer’s pre-order checklist covering drawings, scope, evidence, samples, quality control, packing and change management.

A project-level comparison of sliding and casement windows across ventilation, sealing, safety, cleaning, hardware and façade constraints.

Turn unlike-for-like window quotations into a controlled comparison of quantities, systems, evidence, exclusions and landed scope.