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Standard Double Glazing

Standard double glazed sealed unitsArgon gas filled

Our standard double glazed units are the practical choice when your existing sealed units have failed and you need a reliable, like-for-like replacement. Manufactured to your measurements with a 10-year guarantee — no need to replace your frames.

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42 products

Self-Cleaning Glazed Unit - Low Maintenance – 6mm Planitherm 1.0 / Warm-Edge / Argon / 65% Thermal
Self-Cleaning Glazed Unit - Low Maintenance – 6mm Planitherm 1.0 / Warm-Edge / Argon / 65% Thermal
£0.00
2wk
Self-Cleaning Glazed Unit - Low Maintenance – 6mm Softcoat / Aluminium / Argon / 70% Thermal
Self-Cleaning Glazed Unit - Low Maintenance – 6mm Softcoat / Aluminium / Argon / 70% Thermal
£0.00
2wk
Self-Cleaning Glazed Unit - Low Maintenance – 6mm Softcoat / Warm-Edge / Argon / 83% Thermal / Ground
Self-Cleaning Glazed Unit - Low Maintenance – 6mm Softcoat / Warm-Edge / Argon / 83% Thermal / Ground
£0.00
2wk
Self-Cleaning Glazed Unit - Low Maintenance – 6mm Planitherm 1.0 / Warm-Edge / Argon / 66% Thermal
Self-Cleaning Glazed Unit - Low Maintenance – 6mm Planitherm 1.0 / Warm-Edge / Argon / 66% Thermal
£0.00
2wk
Made to Measure Double Glazed Unit - Custom Size – 6mm Softcoat / Aluminium / 66% Thermal / Seamed
Made to Measure Double Glazed Unit - Custom Size – 6mm Softcoat / Aluminium / 66% Thermal / Seamed
£0.00
3wk
Made to Measure Double Glazed Unit - Custom Size – 4mm Clear / Aluminium / Argon / 63% Thermal / Seamed
Made to Measure Double Glazed Unit - Custom Size – 4mm Clear / Aluminium / Argon / 63% Thermal / Seamed
£0.00
4wk
Made to Measure Double Glazed Unit - Custom Size – 4mm Clear / Aluminium / Argon / 63% Thermal / Ground
Made to Measure Double Glazed Unit - Custom Size – 4mm Clear / Aluminium / Argon / 63% Thermal / Ground
£0.00
3wk
Made to Measure Double Glazed Unit - Custom Size – 4mm Clear / Warm-Edge / 69% Thermal
Made to Measure Double Glazed Unit - Custom Size – 4mm Clear / Warm-Edge / 69% Thermal
£0.00
5wk
Low-E Coated Glazed Unit - Energy Efficient – 4mm Softcoat / Warm-Edge / Argon / 84% Thermal
Low-E Coated Glazed Unit - Energy Efficient – 4mm Softcoat / Warm-Edge / Argon / 84% Thermal
£0.00
5wk 0
Low-E Coated Glazed Unit - Energy Efficient – 4mm Planitherm 1.0 / Aluminium / Argon / 83% Thermal
Low-E Coated Glazed Unit - Energy Efficient – 4mm Planitherm 1.0 / Aluminium / Argon / 83% Thermal
£0.00
4wk 0
Low-E Coated Glazed Unit - Energy Efficient – 4mm Planitherm 1.0 / Warm-Edge / Argon / 88% Thermal
Low-E Coated Glazed Unit - Energy Efficient – 4mm Planitherm 1.0 / Warm-Edge / Argon / 88% Thermal
£0.00
2wk 0
Clear Double Glazed Unit - Standard – 8mm Clear / Aluminium / 66% Thermal
Clear Double Glazed Unit - Standard – 8mm Clear / Aluminium / 66% Thermal
£0.00
6wk
Clear Double Glazed Unit - Standard – 6mm Clear / Warm-Edge / 59% Thermal
Clear Double Glazed Unit - Standard – 6mm Clear / Warm-Edge / 59% Thermal
£0.00
6wk
Clear Double Glazed Unit - Standard – 8mm Clear / Aluminium / 55% Thermal
Clear Double Glazed Unit - Standard – 8mm Clear / Aluminium / 55% Thermal
£0.00
4wk
Clear Double Glazed Unit - Standard – 8mm Clear / Aluminium / Argon / 65% Thermal
Clear Double Glazed Unit - Standard – 8mm Clear / Aluminium / Argon / 65% Thermal
£0.00
5wk
Acoustic Double Glazed Unit - 38dB Noise Reduction – 6.4mm Softcoat Lam / Aluminium / Argon / 69% Thermal
Acoustic Double Glazed Unit - 38dB Noise Reduction – 6.4mm Softcoat Lam / Aluminium / Argon / 69% Thermal
£0.00
5wk

About Standard Double Glazing

Our standard double glazed units feature a proven 4mm/16mm/4mm configuration, delivering dependable insulation for residential and commercial properties. Each sealed unit incorporates 4mm glass panes separated by a 16mm cavity, providing an excellent balance of thermal performance and cost-effectiveness for everyday glazing requirements.

These energy efficient units typically achieve U-values of 2.8 W/m²K, significantly improving insulation compared to single glazing. The spacer bar technology and sealed design reduce heat loss while minimising condensation risk. Optional Low-E coating and argon gas fills can enhance thermal performance for specific applications requiring improved efficiency.

Pane Relief manufactures all standard double glazed units to your exact specifications with made to measure precision. Every unit comes with our comprehensive quality guarantee and fast UK-wide delivery service.

Frequently Asked Questions

  • What glass thickness is used in standard double glazing?
    Standard units use 4mm float glass in both panes with a 16mm cavity, giving an overall thickness of 24mm including spacers and seals.
  • What U-value do standard double glazed units achieve?
    Our standard configuration typically achieves 2.8 W/m²K. This can be improved to around 1.6 W/m²K with Low-E coating and argon gas fill.
  • How do standard units compare to high-performance double glazing?
    Standard units offer excellent value with good thermal performance. High-performance versions add Low-E coatings, warm edge spacers, and gas fills for enhanced efficiency.
  • Can you supply standard double glazed units in custom sizes?
    Yes, we manufacture all units made to measure. Simply provide your exact dimensions and we'll produce units to fit your specific requirements perfectly.

Need Help Choosing the Right Glass?

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