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Timber & PVCu windows and doors

Eco-lite slimline windowsCroydon, Bromley, Bexleyheath, Orpington, South London, South East London, Thanet, Kent, UK

Eco-Lite slim line double glazed units

Details are paramount when retaining a buildings’ established appearance so at Premier Sash Windows we pride ourselves in offering glass solutions that accentuate the beauty of period properties yet attaining modern features that eradicate problems caused by old windows.

Eco-Lite Slim Plus is available in a range of finishes perfect for renovating or the restoration of period properties. Each option offers a reduced sightline and are manufactured as a traditional hermetically sealed unit.

Glass TypeAvailable Thickness (available in hardcoat or softcoat)
Float4mm LOW E / 3mm4mm LOW E / 4mm
Patterned4mm LOW E / 4mm
Antique4mm LOW E / 3mm
Cylinder Glass4mm LOW E / 3mm


Glass TypeAvailable Thickness (available in hardcoat or softcoat)
Float4mm LOW E / 4mm
Patterned4mm LOW E / 4mm
Low Iron4mm LOW E / 4mm


 Eco-Lite Slim PlusEco-Lite Slim Standard
Sight Line 5.5mm8mm
Spacer Type4mm Black or White Warm Edge4mm & 6mm Aluminium
Thickness Standard11mm – 12mm11mm – 12mm
‘U’ Value (W/m2k)è  1.5 – 1.9**è  1.5 – 1.9*
‘U’ Value (6mm cavity)N/Aè  1.0 – 1.5
Warranty5 Years5 Years
Minimum Area Charge0.30.3
Maximum Size (4mm)500mm x 1000mm500mm x 1000mm
Maximum Size (6mm)N/A600mm x 1800mm
Gas TypeKrypton or Xenon or MixedKrypton or Xenon or Mixed
Glazing CompoundsPutty*/Silicone*Putty*/Silicone*


*Subject to manufacturers confirmation                              **Subject to gas type

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