Triple Glazed Doors

Triple glazed door panelsEnhanced security & insulation

Doors lose more heat than windows because they're typically larger and opened more often — triple glazed door units help close that gap. We manufacture units for French doors, patio doors and entrance doors, all cut to your exact dimensions.

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12 products

Triple glazed insulated glass unit showing three panes, spacer bars and sealed cavities
Triple Glazed Door Unit - Secure – 6mm Softcoat / Warm-Edge / Argon / 88% Thermal
£0.00
4wk
Triple glazed insulated glass unit showing three panes, spacer bars and sealed cavities
Triple Glazed Door Unit - Secure – 6mm Softcoat / Warm-Edge / Argon / 85% Thermal / Seamed
£0.00
3wk
Triple glazed insulated glass unit showing three panes, spacer bars and sealed cavities
Triple Glazed Door Unit - Secure – 6mm Softcoat / Warm-Edge / Argon / 85% Thermal / Ground
£0.00
5wk
Triple glazed insulated glass unit showing three panes, spacer bars and sealed cavities
Triple Glazed Door Unit - Secure – 6mm Softcoat / Aluminium / Argon / 87% Thermal
£0.00
2wk
Triple glazed insulated glass unit showing three panes, spacer bars and sealed cavities
Triple Glazed Door Unit - Secure – 10mm Softcoat / Aluminium / Argon / 88% Thermal
£0.00
5wk
Triple glazed insulated glass unit showing three panes, spacer bars and sealed cavities
Triple Glazed Door Unit - Secure – 6mm Softcoat / Warm-Edge / Argon / 84% Thermal / Ground
£0.00
5wk
Triple glazed insulated glass unit showing three panes, spacer bars and sealed cavities
Triple Glazed Door Unit - Secure – 10mm Softcoat / Aluminium / Argon / 86% Thermal
£0.00
4wk
Triple Glazed Door Unit - Secure – 6mm Softcoat / Warm-Edge / Argon / 84% Thermal / Seamed
£0.00
3wk
Triple glazed insulated glass unit showing three panes, spacer bars and sealed cavities
Triple Glazed Door Unit - Secure – 10mm Softcoat / Warm-Edge / Argon / 83% Thermal
£0.00
6wk
Triple glazed insulated glass unit showing three panes, spacer bars and sealed cavities
Triple Glazed Door Unit - Secure (Commercial / Shopfront)
From £200.00
4wk
Triple glazed insulated glass unit showing three panes, spacer bars and sealed cavities
Triple Glazed Door Unit - Secure (New Build / Extension)
From £200.00
2wk
Triple glazed insulated glass unit showing three panes, spacer bars and sealed cavities
Triple Glazed Door Unit - Secure (Residential Replacement)
From £200.00
6wk

About Triple Glazed Doors

Triple glazed doors feature three panes of toughened safety glass within a single sealed unit, providing exceptional thermal insulation for French doors, patio doors, and entrance doors. Standard configurations include 4mm outer panes with 6mm inner glass, creating robust 28mm or 32mm overall thickness options.

Advanced Low-E coating and argon gas fill between panes deliver outstanding energy efficient performance with U-values as low as 0.8 W/m²K. Warm edge spacer bar technology minimises thermal bridging whilst krypton gas upgrades can achieve even superior thermal performance for premium applications.

All Pane Relief triple glazed doors are made to measure with precision cutting to your exact specifications. We guarantee quality manufacturing with nationwide UK delivery and comprehensive technical support throughout your project.

Frequently Asked Questions

  • What thickness options are available for triple glazed door panels?
    Standard thicknesses are 28mm and 32mm overall, with 4mm toughened outer glass and 6mm inner panes. Custom thicknesses available on request for specific door systems.
  • What U-value can I expect from triple glazed doors?
    Our triple glazed door units achieve U-values from 0.8-1.2 W/m²K depending on configuration. Low-E coating and argon fill are standard, with krypton upgrades available.
  • Are triple glazed doors suitable for all door types?
    Yes, our units suit French doors, sliding patio doors, and entrance doors. We manufacture to your exact measurements for perfect fitment in existing frames.
  • How do I measure for replacement triple glazed door panels?
    Measure the existing glazed opening width and height, minus 5mm each direction for fitting tolerance. Contact our team for technical guidance on complex configurations.

Need Help Choosing the Right Glass?

Our glazing experts are here to help you find the perfect solution

Get a Free Quote Call 0117 330 3057

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