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Take the pane out of old timber windows

Simply retrofit ultra-thin Pilkington SpaciaTM into your existing window frames.

  • 82% better than standard single glazing
  • World's thinnest profile 6.5 mm (¼")
  • Virtually eliminates draughts, cold spots and internal condensation
  • Greatly reduces noise levels for a quieter home
  • Successfully used in Japan for over 15 years
  • Full 15-year guarantee

Width of single glazing, warmth of double glazing

Pilkington SpaciaTM is a revolutionary new glazing product that's no wider than standard single glazing yet boasts the thermal performance of triple glazing.

Pilkington SpaciaTM can be easily retrofitted into your existing window frames – usually within one working day.
Little or no redecoration is required.*  What's more, the historic appearance of period homes is unaffected.


*Subject to survey - some minor repainting may be required depending on your frame type, but this will be confirmed on survey.


5 Times more efficient than single glazing


Retrofitted into existing timber window frames


Lowest U-value ultra-slim double-glazing profile 6.5 mm


Pilkington Spacia™ is vacuum sealed & guaranteed for 15 yrs

The Benefits of Pilkington SpaciaTM

  • Six times more efficient than standard single glazing
  • As original frames are reused, little or no redecorating is required - subject to survey
  • Maintains authentic appearance of period homes
  • Reduced heating bills and lower carbon emissions
  • Virtually eliminates all draughts, cold spots and internal condensation
  • Noise levels greatly reduced for a quieter home
  • Full 15-year warranty
  • The perfect solution for most sash windows

or CALL US ON 01 9011 635

How does Pilkington Spacia™ compare?

In order to achieve the same U-value as Pilkington Spacia™ a double-glazed unit would need to be 20 mm thick, compared to 6.5 mm.


How Pilkington SpaciaTM and ENERGLAZE work

With the industry's thinnest profile, Pilkington SpaciaTM offers double-glazing comfort in a single-glazing width. This allows for improved thermal efficiency in period buildings, with a negligible impact on the historic appearance.

  • The only double-glazed unit that can be glazed into all standard astragals.
  • Can be glazed into all existing single-glazing glass rebates.
  • The thinnest double-glazed unit in the world
  • Revolutionary vacuum technology
  • Successfully used in Japan for 15 years

or CALL US ON 01 9011 635

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