Specialist heritage glazing & slim sealed units
Glazing Materials & Character

Heritage Glass Options

Every heritage window project requires careful glass selection. Compare optical character, acoustic dampening, safety treatments, and privacy patterns.

Flagship Restoration Glass4.5mm Outer Pane

4.5mm Goethe Restoration Glass

Drawn restoration glass (Fourcault process)

Authentic historical surface movement that breaks harsh modern planar reflections. Ideal for Grade II listed properties and sensitive conservation areas.

Acoustic Control14.8mm / 16.8mm Total

6.8mm Acoustic Laminated

Acoustic PVB interlayer for traffic & urban noise

Combines acoustic dampening with an inside 4mm Low-E pane to improve sound insulation along busy roads, bus routes, and railway corridors without altering timber sightlines.

Privacy & Modesty29 Patterns

Pilkington Patterned & Obscure

29 authentic manufacturer patterns

Texture and Oriel acid-etched designs for bathrooms, period front doors, and modesty panels with privacy ratings from 1 to 5.

Ultra-Slim 11mmShallow Rebates

Slim 3mm & 4mm Float Glass

Ultra-slim profile for narrow rebates

The slimmest available sealed unit combinations (11mm overall with 3mm float and 4mm cavity), engineered specifically for shallow sash rebates.

Specialist RequestSubject to Review

4mm Activ Self-Cleaning Glass

Dual-action photocatalytic coating

Available in Float or Toughened outer pane. Requires specialist supplier confirmation regarding sealed-unit compatibility and coating orientation.

Safety & SecurityBS EN 12600

6.4mm Laminated Safety Glass

Enhanced security and impact safety

Provides impact protection (BS EN 12600) while maintaining a slim double-glazed format (14.4mm or 16.4mm overall thickness).