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Getting Started
What are you replacing and how big is it?
Glass Selection
Choose your glass type and configuration
Performance & Upgrades
Fine-tune thermal performance and add optional upgrades
Core Specification
Optional Upgrades
Mandatory for doors, skylights & overhead glazing
Reduces heat gain from direct sunlight
Improves U-value by ~0.15 W/m²K
Pilkington Activ coating — breaks down dirt with UV light
Design Options
Add cutouts, Georgian bars and other design extras
Review & Order
Check your configuration summary before ordering
Show price breakdown
Energy Savings Estimate
Energy Savings Estimate
Based on average UK heating costs (4.2p/kWh gas) and 2,000 heating hours/year. Actual savings depend on property insulation and heating habits.

