• Harefield Windows Over 15 years’ experience firm located in Harefield.
1a Northwood Road, Harefield,

Uxbridge, Middlesex UB9 6PL

Off.: 01895 824 946
Mob.: 07793 879508

Energy Efficient Glasses - Harefield Windows

Energy Efficient Glasses

Residential - Harefield Windows

Improve the energy efficiency of your windows and help reduce your heating bills!


At Hare field we specialise in energy efficiency glass products helping to improve the window energy ratings of your glazing and making your home more comfortable:


  • Improved thermal insulation – reduces heat loss more effectively than traditional low-E coatings
  • Promotes passive solar heat gain – free heat from the sun passes easily through the glass helping to warm your home
  • Improved energy efficiency – reduced need for heating helps to save energy and protect the environment whilst saving you money on heating bills
  • More comfortable rooms – improved thermal insulation means fewer cold spots and drafts near windows and doors
  • Less condensation – the inner surface of the glass stays warmer reducing internal condensation and prolonging the life of your window

Neutral Appearance

  • No unsightly tint – Unlike traditional low-E coatings that suffer from an unsightly yellow tint, Harefield glasses looks very clear. This means your curtains or windows will not look dirty or discoloured
  • More light – less tint also means more light can enter the room, making it more comfortable and luminous
  • No ‘haze’ effect – Harefield Glass’s does not suffer from the unsightly tint commonly associated with traditional low-E produ

Product Description

The SGG PLANITHERM family of products are specifically designed to keep interiors more comfortable in winter months and improve the energy efficiency of your home.

Glass of this type is commonly known as low emissivity glass, or low-E glass.

Where can it be used?
The SGG PLANITHERM family is an extremely versatile group of products suitable for a wide range of domestic and commercial applications including:

  • Windows and Skylights
  • Patio doors & French doors
  • Conservatories and sunrooms
  • Glass facades

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